JP7023786B2 - Audio output device, audio output method and audio output program - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act From February 25, 2018 to February 27, 2018, announced at an exhibition called "Technology x Art x Data" on the 17th floor of Yahoo Japan Corporation.

The present invention relates to an audio output device, an audio output method, and an audio output program.

With the active communication via networks such as the Internet, various methods for detecting the access status to the network have been proposed.

For example, a technique has been proposed in which the characteristics of the access contents related to each access can be instantly grasped with a small work load by reproducing the sound source data according to the recorded contents of the access log.

Japanese Patent No. 6226847

However, there is room for further improvement in the above-mentioned prior art. For example, a user has a need to more accurately grasp more types of information when trying to grasp arbitrary information by using voice information.

The present application has been made in view of the above, and an object of the present application is to provide a voice output device, a voice output method, and a voice output program capable of causing a user to grasp various types of information by using voice. ..

The voice output device according to the present application outputs the corresponding voice information and the voice information for each type of the acquisition unit that acquires the predetermined information associated with the types and the predetermined information acquired by the acquisition unit. Based on the selection unit that selects the information regarding the direction to be performed and the information regarding the direction selected by the selection unit, the voice information is controlled to be constantly output from the output device, and the predetermined information is specified. It is characterized in that it includes an audio output unit that changes an element constituting the audio information according to a change at predetermined time intervals.

According to one aspect of the embodiment, there is an effect that various types of information can be grasped by the user by using voice.

FIG. 1 is a diagram showing an example of audio output processing according to an embodiment. FIG. 2 is a diagram showing a configuration example of the audio output system according to the embodiment. FIG. 3 is a diagram showing a configuration example of the audio output device according to the embodiment. FIG. 4 is a diagram showing an example of an access log storage unit according to an embodiment. FIG. 5 is a diagram showing an example of a voice selection storage unit according to an embodiment. FIG. 6 is a diagram showing an example of an output destination storage unit according to the embodiment. FIG. 7 is a diagram showing an example of a change information storage unit according to an embodiment. FIG. 8 is a flowchart showing a processing procedure according to the embodiment. FIG. 9 is a hardware configuration diagram showing an example of a computer that realizes the function of the audio output device.

Hereinafter, a mode for implementing the voice output device, the voice output method, and the voice output program according to the present application (hereinafter, referred to as “the embodiment”) will be described in detail with reference to the drawings. It should be noted that this embodiment does not limit the audio output device, audio output method, and audio output program according to the present application. Further, in each of the following embodiments, the same parts are designated by the same reference numerals, and duplicate description will be omitted.

[1. An example of audio output processing]
First, an example of audio output processing executed by the audio output device 100 according to the embodiment will be described with reference to FIG. 1. FIG. 1 is a diagram showing an example of processing executed by the voice output device 100 according to the embodiment.

The voice output device 100 shown in FIG. 1 is an information processing device that generates voice information corresponding to the acquired predetermined information and controls the generated voice information to be output as voice from an output device (speaker or the like).

The information providing server 40 is a server device that provides the voice output device 100 with predetermined information that is the target of the voice output processing according to the embodiment. The information providing server 40 collects predetermined information via a predetermined network such as the Internet, and accumulates the collected information. For example, the information providing server 40 manages a web server that provides various web contents, and acquires information about a terminal device that has accessed the web server and access information to the web contents.

Speakers 20 ₁ to ₂₀₄ are audio output devices that output audio based on audio information. For example, the speakers 20 ₁ to ₂₀₄ receive voice information from the voice output device 100 and output voice corresponding to the voice information. _In the embodiment, the speakers 201 to 204 are so _- called directional speakers capable of limiting the audible range of sound to a relatively narrow angle. _In the following description, when it is not necessary to distinguish the speakers 201 to 204, they are collectively referred to as “speaker ₂₀ ”.

The user U1 and the user U2 are users who listen to the voice output from the speaker 20 by the voice output device 100. In the example of FIG. 1, the user U1 is in a position (near the center of the space 70) where the voice output by _each of the speakers ₂₀₁ to 204 can be heard in the space 70 surrounded by the _four speakers ₂₀₁ to 204. ). On the other hand, the user U 2 is located at a position where the sound output by the speaker 20 ₃ can be heard, and the sound output by the speaker 201, the speaker _{202, and the speaker 20 4 can not} be heard. In the following description, when it is not necessary to distinguish between the user U1 and the user U2, they are collectively referred to as "user".

In the example shown in FIG. 1, the audio output device 100 has, as predetermined information, the number of impressions (views) of news articles on the network and the number of users who have viewed the news articles spread the articles (shares). And get. Further, the voice output device 100 acquires a category set for a news article as a type for distinguishing predetermined information. That is, in the example of FIG. 1, the audio output device 100 converts information such as what category of news articles are viewed by users and how much news articles are shared among users into audio information. .. In other words, the voice output device 100 generates voice information based on the access information (access log) to the news article. For example, the voice output device 100 changes the voice information so that the volume of the voice to be output increases or decreases in accordance with the increase or decrease (change) in the number of impressions. Alternatively, the voice output device 100 changes the voice information so that the frequency of the voice to be output changes according to the increase or decrease in the number of shares. As a result, the user can grasp the change in the information that is the source of the voice information.

Further, the voice output device 100 selects information regarding the direction of the output voice when generating the voice information. For example, the voice output device 100 assigns information regarding the direction of sound to the user so that the voice is output from a different direction for each type of acquired information. Specifically, the audio output device 100 selects an output channel that outputs each audio corresponding to the type, and assigns the selected output channel to different speakers 20, so that sound can be output from different directions to the user. Control to output. By such processing, the user can detect a change in predetermined information based on not only a change in volume and frequency but also information such as from which direction the voice is heard. Such audio output processing will be described with reference to FIG. 1 along the flow of the processing.

First, the voice output device 100 acquires information corresponding to the voice information from the information providing server 40 (step S01). In the example of FIG. 1, the voice output device 100 acquires access information for a news article on the web as information corresponding to the voice information. For example, the voice output device 100 acquires the category of news articles accessed by the user, the number of impressions for each aggregation period (for example, every 15 seconds, etc.), the number of shares, and the like as access information.

Table 60 shown in FIG. 1 shows the information acquired by the audio output device 100. That is, the voice output device 100 acquires access information for news articles in which "economy", "sports", "fashion", "entertainment", etc. are set as article categories. Further, the voice output device 100 acquires the number of impressions and the number of shares for each predetermined aggregation period. In Table 60, the aggregation period is shown by a concept such as "T01", but in reality, information regarding a specific date and time is stored in the item of the aggregation period. Further, in Table 60, the number of impressions and the number of shares are shown by concepts such as "X01" and "Y01", but in reality, specific numerical values are stored in these items.

Subsequently, the voice output device 100 associates the acquired information with the voice information (step S02). For example, the voice output device 100 associates the acquired information with the voice information based on a definition file or the like for associating voice information created in advance by the administrator of the voice output device 100 or the like.

Specifically, the voice output device 100 associates the acquired information with the voice information based on the definition file for associating the elements constituting the voice information with the variables of the acquired information. As an example, the audio output device 100 sets the tone color in the type of acquired information (the category of news articles in the example of FIG. 1) and the volume in the first variable (the number of impressions in the example of FIG. 1) of the acquired information. , The timbre is associated with the second variable (the number of shares in the example of FIG. 1) of the acquired information.

For example, the voice output device 100 associates the voice information of the violin tone with the information whose article category is "economy", or converts the voice information of the piano tone to the information whose article category is "sports". Correspond to each other.

In the example of FIG. 1, as shown in Table 61, it is assumed that the voice information “A01” is associated with the article category “economy”. In Table 61, the voice information is shown by a concept such as "A01", but in reality, the voice information items include information for designating the volume and frequency at the time of output, tunes, and timbres. Information that specifies, etc. is stored. The voice information may be a voice file created in advance, or may be digital data or the like in which the length or pitch at which the sound is emitted is specified. When the audio information is digital data, the audio output device 100 or the speaker 20 may have a decoding function, sound source data, or the like for actually reproducing the designated sound.

Further, the voice output device 100 selects one element of voice information (for example, tone color) for each article category, and selects information regarding the direction of sound (sound output direction) for each voice information (step S03).

For example, as shown in Table 61, the voice output device ₁₀₀ selects “speaker 201” as the direction (output destination) with respect to the voice information “A01”. Similarly, the voice output device 100 selects "speaker 202" as the direction (output destination) with respect to the voice information "A02", and selects "speaker ₂₀₂ " as the direction (output destination) with respect to the voice information "A03". Select "203" and select "Speaker ₂₀₄ " as the direction ₍ output destination) with respect to the voice information "A04". In the example of FIG. 1, for the sake of simplicity, an example in which the voice information and the speaker 20 are associated with each other is shown, but in reality, the voice output device 100 selects an output channel for the voice information. You may just do it. In this case, the audio output device 100 further has a definition file in which the output channel and the output destination (speaker 20) are associated with each other.

Then, the voice output device 100 controls the voice output based on the voice information associated with the information acquired from the information providing server 40 (step S04). Specifically, the voice output device ₁₀₀ transmits voice information associated with the acquired information to the speakers ₂₀₁ to ₂₀₄ , drives the speakers ₂₀₁ to 204, and outputs voice.

As described above, the speakers ₂₀₁ to ₂₀₄ are directional speakers, and the output sound is radiated at a relatively narrow angle. Therefore, the sound output from _each of the speakers ₂₀₁ to 204 is mixed. It reaches the user U1 or the user U2 without any trouble. For example, in the example of FIG. ₁ , in the space 70, the user U1 listens to the sound output from _each of the speakers 201 to 204. Further, the user U2 listens to the sound output only from the speaker ₂₀₃ .

In the embodiment, the voice output device 100 shall generate voice information so that voice can be output constantly. For example, the voice output device 100 generates voice information in which a certain phrase (tune) loops, and transmits the generated voice information to the speaker 20.

Further, the voice output device 100 continuously acquires information from the information providing server 40. Then, the voice output device 100 controls so that the voice changes according to the change of the information (step S05).

For example, the voice output device 100 controls the voice to change according to the change in the number of impressions and the number of shares for each aggregation period. For example, the voice output device 100 acquires information indicating that the number of impressions and the number of shares of the article category “economy” have increased in the aggregation period T02 immediately after the aggregation period T01. More specifically, the voice output device 100 acquires information indicating that the number of impressions and the number of shares of the article category "economy" have increased beyond a predetermined threshold value between the aggregation period T01 and the aggregation period T02. ..

In this case, the voice output device 100 is relative to the volume (in other words, the voice output value) which is one element of the voice information A01 corresponding to the aggregation period T01 in the voice information A01 corresponding to the aggregation period T02. Increase the volume. For example, when the aggregation period and the audio output time are synchronized, the audio output device ₁₀₀ outputs audio from the speaker 201 at a predetermined volume for the time corresponding to the aggregation period T01 (for example, 15 seconds). It is controlled so that the sound is output from the speaker 201 at _a relatively loud volume during the time corresponding to the next aggregation period T02 (15 seconds immediately after the aggregation period T01). At this time, the voice output device 100 may determine the value of the volume to be changed according to the increase number (increase rate) of the number of impressions. The audio output device 100 may gradually change the volume over a predetermined time, instead of changing the volume momentarily when the aggregation period T01 is switched to the aggregation period T02. Further, the voice output device 100 may change the frequency of the voice that is constantly output (for example, raise the overall pitch) instead of changing the volume.

Similarly, the voice output device 100 controls so that the voice is output from the speaker 201 in _a predetermined tune during the time corresponding to the aggregation period T01, and the speaker 20 has a different melody in the time corresponding to the next aggregation period T02. You may control so that the sound is output from ₁ . At this time, the audio output device 100 may determine the type of tune to be changed according to the increase number (increase rate) of the number of shares.

_In this case, the user U1 perceives that _only the voice of the speaker 201 has changed _among the voices output from the speakers 201 to 204. In other words, the user U1 can perceive that only the news article of the article category "economy" among the four types of information corresponding to the voice has changed beyond a predetermined threshold. In addition, among the four types of information corresponding to voice, the user U1 has a large change in the access information of the article categories "sports", "fashion", and "entertainment" between the aggregation period T01 and the aggregation period T02. You can perceive that it wasn't. That is, by setting the direction of the emitted voice, the voice output device 100 can deliver four different information as voice to the user U1 and perceive a change in one of the information.

Further, in the example of FIG. ₁ , even if there is a change in the voice of the speaker 201, the user U2 does not perceive the change in the voice because it is not located in the range where the voice can be heard. That is, by setting the direction of the emitted voice, the voice output device 100 does not deliver the voice that does not need to be perceived to the user U2, and can perceive only the change in the information desired by the user U2.

As described above, when the voice output device 100 according to the embodiment acquires predetermined information associated with the types and outputs the corresponding voice information and the voice information for each type of the acquired predetermined information. Select with information about the direction of. Further, the voice output device 100 controls to constantly output the voice information from the speaker 20 based on the information regarding the selected direction, and configures the voice information according to the change in the predetermined information at predetermined time intervals. Change the element to be used.

That is, the voice output device 100 not only expresses the change in information in terms of volume and frequency, but also adds the property of direction to the voice to be output so that the user located in a certain space can perceive the change in information. Can be done. In other words, the voice output device 100 maps sound information to space by selecting an output destination for each type of acquired information. This allows the user to determine the type of information based on information such as from which direction the sound arrives, even if the volume or the like does not change. Further, according to the voice output device 100, it is possible to prevent the extra voice from being delivered to the user (user U2 in the example of FIG. 1) who is not located in the audible region of the sound, so that only the user who needs the information In addition, it is possible to perform processing that delivers only the necessary information.

Further, the voice output device 100 outputs a steady voice and changes the volume of the steady voice being output to make the user perceive a continuous change in information. As a result, the user can accurately grasp the change of the data to be grasped only by hearing, not by sight. For example, users often see what kind of news is on the network at a given date and time, rather than the momentary information that the data they want to know reaches a given value. You can know if it is being viewed).

Hereinafter, the audio output device 100 that performs the audio output processing as described above, and the audio output system 1 including the audio output device 100 will be described in detail.

[2. Audio output system configuration]
The configuration of the audio output system 1 including the audio output device 100 according to the embodiment will be described with reference to FIG. FIG. 2 is a diagram showing a configuration example of the audio output system 1 according to the embodiment. As illustrated in FIG. 2, the voice output system 1 according to the embodiment includes a speaker 20, an information providing server 40, and a voice output device 100. These various devices are connected so as to be communicable by wire or wirelessly via a network N (for example, the Internet). The audio output system 1 shown in FIG. 2 may include a plurality of speakers 20 and a plurality of information providing servers 40.

The speaker 20 is an example of an output device having a function of outputting sound. As in the example shown in FIG. 1, when the target to which the sound is delivered is determined (when sound information is mapped in space), the speaker 20 is a device such as a directional speaker in which the radiation angle of the sound is determined. Is desirable. Further, the speaker 20 may have a function of decoding voice from the voice information generated by the voice output device 100.

The speaker 20 is not limited to the directional speaker, and may be any device as long as it has a function of outputting sound. For example, the speaker 20 is a speaker provided in an information processing device such as a smartphone, a desktop PC, a notebook PC, a tablet terminal, a mobile phone, a PDA (Personal Digital Assistant), or a wearable device. You may.

The information providing server 40 is a server device that manages a web server or the like that provides various services, acquires information from each web server, and stores the acquired information. Further, the information providing server 40 provides the accumulated information to the voice output device 100.

For example, the information providing server 40 includes a portal site, a news site, an auction site, a weather forecast site, a shopping site, a finance (stock price) site, a route search site, a map providing site, a travel site, a restaurant introduction site, and an SNS (Social Networking). Service) Acquires user access information from a web server that provides a web page containing various information related to service sites, web blogs, and the like.

The voice output device 100 is a server device that converts information acquired from the information providing server 40 into voice information, generates voice information, and outputs voice based on the voice information. The voice output device 100 generates directional voice information by selecting information regarding the direction in which the voice information is output for each type of information acquired from the information providing server 40. As a result, the voice output device 100 can make the user perceive predetermined information based not only on the volume and frequency but also on the direction in which the sound is radiated.

[3. Configuration of audio output device]
Next, the configuration of the audio output device 100 according to the embodiment will be described with reference to FIG. FIG. 3 is a diagram showing a configuration example of the audio output device 100 according to the embodiment. As shown in FIG. 3, the voice output device 100 includes a communication unit 110, a storage unit 120, and a control unit 130. The audio output device 100 includes an input unit (for example, a keyboard, a mouse, etc.) that receives various operations from an administrator or the like who uses the audio output device 100, and a display unit (for example, a liquid crystal display, etc.) for displaying various information. ) May have.

(About communication unit 110)
The communication unit 110 is realized by, for example, a NIC (Network Interface Card) or the like. The communication unit 110 is connected to the network N by wire or wirelessly, and transmits / receives information to / from the speaker 20 and the information providing server 40 via the network N.

(About the storage unit 120)
The storage unit 120 is realized by, for example, a semiconductor memory element such as a RAM (Random Access Memory) or a flash memory (Flash Memory), or a storage device such as a hard disk or an optical disk. As shown in FIG. 3, the storage unit 120 includes an access log storage unit 121, a voice selection storage unit 122, an output destination storage unit 123, and a change information storage unit 124.

(About access log storage unit 121)
The access log storage unit 121 stores access information which is an example of information converted into voice information. Here, FIG. 4 shows an example of the access log storage unit 121 according to the embodiment. FIG. 4 is a diagram showing an example of the access log storage unit 121 according to the embodiment. In the example shown in FIG. 4, the access log storage unit 121 has items such as "content ID", "article category", "aggregation period", "number of impressions", and "number of shares".

The "content ID" indicates identification information that identifies content such as a news article. In the specification, identification information such as content ID may be used as a reference code. For example, the content whose content ID is "C01" may be described as "content C01".

"Article category" indicates a preset category for news articles. "Aggregation period" indicates the period during which the number of impressions and the number of shares are aggregated. In the example shown in FIG. 4, a conceptual value such as "T01" is described, but in reality, information indicating a specific date and time is stored in the item of the aggregation period. Further, the length of the aggregation period may be arbitrarily set by, for example, the administrator of the audio output device 100.

The “number of impressions” indicates the number of views (number of PVs) at which the content was viewed during the aggregation period. The "number of shares" indicates the number of times the information is spread by the user who browses the content. For example, the number of shares is calculated by the number of times the user selects a display area such as "share this article" displayed in a news article or the like distributed via a web page or an application. In the example shown in FIG. 4, conceptual values such as "X11" and "Y11" are described, but in reality, information indicating specific numerical values is stored in the items of the number of impressions and the number of shares. The number of impressions and the number of shares may be indicated by the number of increases / decreases (differences) from a certain reference numerical value.

That is, in FIG. 4, as an example of the information stored in the access log storage unit 121, the content C01 identified by the content ID “C01” indicates that the article category is “economy”. Further, the content C01 indicates that the number of impressions is "X11" and the number of shares is "Y11" in the aggregation period "T01". Further, the content C01 indicates that the number of impressions is "X12" and the number of shares is "Y12" in the aggregation period "T02".

(About voice selection storage unit 122)
The voice selection storage unit 122 stores information related to voice information assigned to the information acquired by the voice output device 100. Here, FIG. 5 shows an example of the voice selection storage unit 122 according to the embodiment. FIG. 5 is a diagram showing an example of the voice selection storage unit 122 according to the embodiment. In the example shown in FIG. 5, the voice selection storage unit 122 has items such as “voice information ID”, “sound source”, “correspondence information”, “variable”, and “element”.

"Voice information ID" indicates identification information for identifying voice information. “Sound source” indicates a sound source assigned to voice information. The sound source is information related to a timbre selected for voice information, and is indicated by, for example, a musical instrument name or the like. In the example shown in FIG. 4, a conceptual value such as "B01" is described, but in reality, the item of the sound source stores specific data for designating the musical instrument name and the sound source name.

"Correspondence information" indicates the type of information corresponding to voice information. Correspondence information is defined in advance for each type of information expressed by voice information, for example, by the administrator of the voice output device 100 or the like. "Variable" indicates a variable used to change an element of audio information. The variables are defined in advance by, for example, the administrator of the voice output device 100, together with the elements corresponding to the voice information, the threshold value for determining the change of the information, and the like. "Element" indicates an element that is changed in the voice information according to the change of the variable.

That is, in FIG. 5, as an example of the information stored in the voice selection storage unit 122, the voice information A01 identified by the voice information ID “A01” has a sound source of “B01” and a corresponding information of “economy”. It shows that there is. Further, in the voice information A01, the variables are the "number of impressions" and the "number of shares", the element of the voice information corresponding to the number of impressions is "volume" or "frequency", and the element corresponding to the "number of shares" is. It shows that it is "addition of melody".

In addition to the information shown in FIG. 5, the voice selection storage unit 122 may store a voice file (for example, a wav format or an mpg format) for outputting a predetermined voice.

(About the output destination storage unit 123)
The output destination storage unit 123 stores an output destination to which the voice corresponding to the voice information is output. Here, FIG. 6 shows an example of the output destination storage unit 123 according to the embodiment. FIG. 6 is a diagram showing an example of the output destination storage unit 123 according to the embodiment. In the example shown in FIG. 6, the output destination storage unit 123 has items such as “output destination setting”, “voice information ID”, and “output destination”.

"Output destination setting" indicates information set as an output destination. For example, the output destination is indicated by identification information (referred to as "channel" in the embodiment) associated with voice information. The "voice information ID" corresponds to the same item shown in FIG. “Output destination” specifically indicates the name of an output destination (output device) that outputs audio.

That is, in FIG. 6, as an example of the information stored in the output destination storage unit 123, the voice information A01 identified by the voice information ID “A01” is assigned to the output destination setting “channel 1”, and the channel is assigned. It is shown that the output destination of ₁ is "speaker 201".

(About change information storage unit 124)
The change information storage unit 124 stores information regarding changes in voice information. Here, FIG. 7 shows an example of the change information storage unit 124 according to the embodiment. FIG. 7 is a diagram showing an example of the change information storage unit 124 according to the embodiment. In the example shown in FIG. 7, the change information storage unit 124 has items such as "definition ID", "variable", "change element", and "definition".

The "definition ID" indicates identification information that identifies a definition relating to a change in voice information. “Variable” indicates a variable that triggers a change in voice information. "Change element" indicates an element to be changed in voice information. "Definition" indicates a specific content that defines an event in which voice information is changed.

That is, in FIG. 7, as an example of the information stored in the change information storage unit 124, the definition E01 identified by the definition ID “E01” is the case where the variable “variable 1 (in the embodiment, the number of impressions)” changes. Shows that the change element "volume" is changed. In addition, it is shown that the volume in the voice information changes when "increase / decrease exceeding the threshold value compared with the immediately preceding aggregation period (value of the variable in)" is observed.

Although not shown in FIG. 7, the change information storage unit 124 may store more detailed definition information about the change of the element. For example, the change information storage unit 124 may store a definition showing a specific numerical value of the volume (output value) to be increased or decreased, a specific numerical value of the frequency to be increased or decreased, and the like. Further, the change information storage unit 124 may store a definition indicating a tune to be incorporated into the voice information when the variable increases or a tune to be incorporated into the voice information when the variable decreases. The tune is not necessarily limited to a sequence of changes in pitch, and may be an instruction to play a specific chord or a predetermined sound effect.

(About control unit 130)
The control unit 130 is a controller, and for example, various programs (of the audio output program) stored in the storage device inside the audio output device 100 by a CPU (Central Processing Unit), an MPU (Micro Processing Unit), or the like. (Corresponding to one example) is realized by executing the RAM as a work area. Further, the control unit 130 is a controller, and is realized by, for example, an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

As shown in FIG. 3, the control unit 130 includes an acquisition unit 131, a selection unit 132, and a voice output unit 133, and realizes or executes an information processing function or operation described below. The internal configuration of the control unit 130 is not limited to the configuration shown in FIG. 3, and may be any other configuration as long as it is configured to perform information processing described later. Further, the connection relationship of each processing unit included in the control unit 130 is not limited to the connection relationship shown in FIG. 3, and may be another connection relationship.

(About acquisition unit 131)
The acquisition unit 131 acquires various types of information. For example, the acquisition unit 131 acquires predetermined information with which the types are associated. The predetermined information is information associated with the voice information by the voice output unit 133, which will be described later, and is, for example, an arbitrary type of information and a numerical value corresponding to the information. For example, when the predetermined information is the "access log to the news article", the type of the predetermined information is the "category" set in the news article, and the numerical value is "the number of impressions" or "the number of shares".

The acquisition unit 131 acquires a plurality of predetermined information of different types. For example, as shown in FIG. 4, the acquisition unit 131 acquires a plurality of types of access logs such as “economy” and “sports”. By outputting these plurality of types of information from different directions, the user can perceive changes in the information by hearing.

The acquisition unit 131 acquires the numerical values observed at predetermined time intervals as predetermined information. For example, the acquisition unit 131 acquires the numerical value observed for each aggregation period set in advance, and stores the numerical value for each aggregation period in the storage unit 120 (for example, the access log storage unit 121). As a result, the acquisition unit 131 can acquire information regarding the amount of change (difference) in the numerical value for each aggregation period.

As described above, the acquisition unit 131 acquires at least one of the number of views or the number of diffusions of the content associated with the preset category as predetermined information. In the above example, the news article is taken as an example of the content, but the acquisition unit 131 may acquire the number of views of the content other than the news article. For example, the acquisition unit 131 may acquire the number of views for each web page in which the category is set. Specifically, the acquisition unit 131 acquires the total number of views of web pages classified as "travel sites" and the total number of views of web pages classified as "restaurant reservation sites". You may. That is, the information acquired by the acquisition unit 131 may be any information acquired on the network.

For example, the acquisition unit 131 may acquire at least one of a stock price or a number of transactions associated with a preset issue as predetermined information. In this case, the acquisition unit 131 may acquire a definition file in which the corresponding sound source is set for each brand. When the information acquired by the acquisition unit 131 is output as voice, the user constantly emits information such as which brand has increased in price or which brand is frequently traded. Can be perceived by.

Further, the acquisition unit 131 may acquire at least one of the number of products sold, the number of spreads, and the number of bookmarks of products sold via the network as predetermined information. In this case, the acquisition unit 131 may acquire a definition file in which a category corresponding to the product (for example, classification information such as home appliances and fashion) is set, a definition file in which a sound source to be assigned to each category is specified, and the like. .. When the information acquired by the acquisition unit 131 is output as voice, the user can obtain information such as what category of products are frequently bought and sold or what products are frequently shared. It can be perceived by a continuous voice that is emitted constantly.

(About selection unit 132)
The selection unit 132 selects the corresponding voice information and the information regarding the direction in which the voice information is output for each type of predetermined information acquired by the acquisition unit 131.

Specifically, the selection unit 132 selects the identification information of the output device to which the voice information is output as the information regarding the direction when the voice information is output. For example, as shown in FIG. 5, the selection unit 132 may select an output destination channel for each type of predetermined information, and select the identification information of the output device (speaker 20) along with the channel selection. good. In other words, the selection unit 132 specifies (selects) the direction in which the sound is output by selecting the output destination.

For example, when a plurality of predetermined information of different types is acquired by the acquisition unit 131, the selection unit 132 selects different output device identification information for each of the plurality of types. As a result, the selection unit 132 can deliver the voice to the user from different directions even if the voice corresponding to a plurality of types is output at the same time, so that the user's perception is not hindered. In other words, the selection unit 132 can map the sound information to the space where the user hears the sound by selecting the identification information of the output device.

Further, the selection unit 132 selects the sound source of the voice information when selecting the corresponding voice information for each type of predetermined information. Specifically, the selection unit 132 selects a different tone color for each type. According to the selection unit 132, even when voices corresponding to different types are output at the same time, different tones are selected for each voice, so that it is possible to prevent the user from confusing the information. It should be noted that the selection of voice information may be read as the generation of voice information using a sound source (timbre) different for each type.

(About audio output unit 133)
The voice output unit 133 controls to constantly output voice information from the output device based on the information regarding the direction selected by the selection unit 132, and the voice output unit 133 responds to changes in the predetermined information at predetermined time intervals. Change the elements that make up the information.

For example, the voice output unit 133 controls to output voice information from different output devices for each of a plurality of types. As a result, the voice output unit 133 can deliver the voice corresponding to a plurality of types of information to the user instead of the information of one type.

Further, the voice output unit 133 changes at least one of the volume, frequency, and timbre of the voice information according to the change in the predetermined information at predetermined time intervals. For example, the audio output unit 133 refers to the definition stored in the change information storage unit 124, and changes the volume, frequency, or timbre according to a change in a variable of predetermined information.

Further, the voice output unit 133 may output voice information including a melody associated with the change according to the change in the predetermined information at predetermined time intervals. In this case, the voice output unit 133 refers to the definition stored in the change information storage unit 124, determines the tune according to the change of the variable of the predetermined information, and incorporates the tune into the constantly emitted voice. I do.

The audio output unit 133 may appropriately change elements other than the above-mentioned volume, frequency, and the like. That is, the voice output unit 133 may change various elements of the voice information so that the user listening to the voice can recognize some change. For example, the voice output unit 133 may change the time length or envelope of the tune in the voice that is constantly being output. Further, the audio output unit 133 may change the frequency according to the time so as to sweep the frequency of the output audio. Further, the audio output unit 133 may appropriately change the waveform (sine wave, triangular wave, rectangular wave, etc.) of the generated audio information to change the constantly output audio. The voice output unit 133 may use various known techniques (for example, an automatic phrase generation technique that sounds natural to humans) for generating or changing these voice information.

The voice output unit 133 may change the voice information by referring to the definition information in which the tune or chord is specifically specified, or the voice is naturally voiced according to the pitch or the sound length output immediately before. You may change the voice information by referring to the definition information that changes. For example, the voice output unit 133 refers to the definition information such as incorporating a tune defined by "a sound having a pitch of 3 degrees, 5 degrees, and 7 degrees" into the sound currently being output, and makes a voice. You may change the information. As a result, the voice output unit 133 can not only present the change of information to the user but also provide the user with voice that can be heard naturally musically.

The voice output unit 133 may change the voice information based on the difference for each predetermined time (aggregation period) instead of the absolute numerical value of the acquired information. That is, the voice output unit 133 may change the elements constituting the voice information according to the amount of change in the numerical value for each predetermined time in the predetermined information.

Specifically, the voice output unit 133 may change at least one of the volume, frequency, and timbre of the voice information according to the amount of change of the numerical value in the predetermined information for each predetermined time. Further, the voice output unit 133 may change the tempo (speed) of the voice that is constantly emitted, transpose the voice, or change the length of the sound.

[4. Processing procedure]
Next, the procedure of processing by the voice output device 100 according to the embodiment will be described with reference to FIG. FIG. 8 is a flowchart showing a processing procedure according to the embodiment.

As shown in FIG. 8, the voice output device 100 determines whether or not the information to be analyzed (in the embodiment, the access log for the news article) has been acquired (step S101). If the information to be analyzed has not been acquired (step S101; No), the audio output device 100 waits until it is acquired.

On the other hand, when the information to be analyzed is acquired (step S101; Yes), the audio output device 100 selects audio information for each type of acquired information (step S102). Further, the voice output device 100 selects information (output destination) regarding the direction in which the voice is output for each type of information (step S103).

After that, the voice output device 100 determines whether or not the end of the voice output has been accepted from the user, the administrator, or the like (step S104). When the end of the voice output is not accepted (step S104; No), the voice output device 100 outputs the voice from the output destination based on the voice information (step S105).

Then, the voice output device 100 determines whether or not the information corresponding to the voice information has changed during the output of the voice (step S106). For example, the voice output device 100 determines whether or not the numerical value has changed beyond a predetermined threshold value in the continuous aggregation period.

If the information has not changed (step S106; No), the audio output device 100 returns the process to step S104 without changing the audio information (that is, the audio being output). On the other hand, when the information changes (step S106; Yes), the voice output device 100 changes the voice to be output according to the definition stored in, for example, the change information storage unit 124 (step S107).

When the audio output device 100 receives the end of the audio output in step S104 (step S104; Yes), the audio output device 100 ends the audio output (step S108), and ends the audio output process according to the embodiment.

[5. Modification example]
The audio output device 100 described above may be implemented in various different forms other than the above embodiment. Therefore, another embodiment of the audio output device 100 will be described below.

[5-1. Voice corresponding to the instruction]
In the above embodiment, an example is shown in which the voice output device 100 changes the elements constituting the voice information according to the change of the information. Here, the voice output device 100 may change the voice information by receiving a predetermined instruction in addition to the change of the information.

For example, the voice output device 100 acquires information defining a predefined instruction and a change in voice information when the instruction is received. The instruction is, for example, a business instruction used in a store or the like, and is information that gives some command to a person who hears a voice corresponding to the instruction. An example of an instruction is a business order to gather a clerk at a predetermined position in a store.

Then, the voice output device 100 acquires information that triggers an instruction at an arbitrary timing. For example, the voice output device 100 acquires a command (script or the like) indicating that an instruction is issued from a terminal device used by a store manager or the like. Then, when the instruction is acquired, the voice output device 100 outputs the voice information including the melody associated with the acquired information to the speaker 20.

That is, the voice output device 100 outputs a melody associated with some instruction from the speaker 20 so as to be mixed with the voice constantly emitted. As a result, the store side can transmit the instruction to the store clerk without the store clerk announcing the contents of the business order or the like. Further, by using the directional speaker as shown in FIG. 1, the voice output device 100 can select and issue an instruction between a clerk who conveys an instruction and a clerk who does not need to convey the instruction.

In this way, the voice output device 100 may acquire information regarding a predefined instruction and output voice information including a tune associated with the acquired information. As a result, the voice output device 100 can transmit not only the numerical change of the information but also an arbitrary instruction to the target person.

[5-2. Select output destination]
In the above embodiment, an example is shown in which the sound output device 100 is controlled to output sound by an output device such as a directional speaker whose angle at which sound is radiated can be adjusted. However, the audio output device 100 may output audio by selecting an output device other than the directional speaker.

For example, the audio output device 100 may output audio by selecting an LR channel such as a stereo speaker, headphones, or earphones. In this case, the audio output device 100 associates one type of information with the L side as an output destination, and associates the other type of information with the R side as an output destination. Even with this method, the voice output device 100 can deliver the voice to the user from another direction, so that the user can detect changes in at least two types of information.

Further, the audio output device 100 may acquire definition information including the arrangement information of the speaker 20 and the like in advance. For example, the audio output device 100 has a speaker 201 that outputs sound from the north side of the user, a speaker ₂₀₂ that outputs sound from the west side of the user, and _a speaker that outputs sound from the south side of the user in a closed space. The arrangement information of ₂₀₃ and the speaker ₂₀₄ that outputs sound from the east side of the user is acquired in advance. The arrangement information may include position information on which each speaker 20 is arranged, distance information from each other, an angle at which sound is output, and the like. Then, the voice output device 100 may select the speaker 20 which is determined to have the least interference with each other for each type of acquired information, and output the voice information.

[5-3. Output device]
The voice output device 100 may use, for example, an HTML (HyperText Markup Language) file as voice information for instructing the voice to be output. In this case, the output device outputs the voice corresponding to the voice information acquired from the voice output device 100 via a web browser capable of reading the HTML file. That is, the audio output processing according to the embodiment can be realized by using a plurality of notebook computers, smartphones, or the like that can access the audio output device 100 as the output device.

[5-4. Change of voice information]
The voice output device 100 may make various decisions on the change of the voice information according to the degree of the change of the acquired information. For example, the voice output device 100 may determine the tune to be output so that a relatively intense tune (for example, a lot of dissonance is used) is output when the change of the acquired information is relatively large. Further, the voice output device 100 may determine the output tune so that a relatively gentle tune (for example, a small pitch movement) is output when the change in the acquired information is relatively small. ..

[5-5. Information type]
The types of information assigned to voice information may be defined in various ways. For example, the voice output device 100 may use the location of a user who has viewed a certain news article as the type of information. Specifically, the voice output device 100 may use the area where the user who browses a certain news article is located (for example, the Kanto region, the Kansai region, or a prefecture) as the type of information. In this case, the audio output device 100 selects an output destination for each area where the user is located. As a result, the user who listens to the voice output from the voice output device 100 can obtain information from the voice, for example, that a certain news article is mainly viewed in the Kanto region or is shared mainly in the Kansai region. be able to. Further, if the information is the number of products sold, the user can obtain information from the voice that a certain product is selling well in the Kanto region or not so much in the Kansai region.

[6. Hardware configuration]
The audio output device 100 and the information providing server 40 according to the above-described embodiment are realized by, for example, a computer 1000 having a configuration as shown in FIG. Hereinafter, the audio output device 100 will be described as an example. FIG. 9 is a hardware configuration diagram showing an example of a computer 1000 that realizes the functions of the audio output device 100. The computer 1000 has a CPU 1100, a RAM 1200, a ROM 1300, an HDD 1400, a communication interface (I / F) 1500, an input / output interface (I / F) 1600, and a media interface (I / F) 1700.

The CPU 1100 operates based on a program stored in the ROM 1300 or the HDD 1400, and controls each part. The ROM 1300 stores a boot program executed by the CPU 1100 when the computer 1000 is started, a program depending on the hardware of the computer 1000, and the like.

The HDD 1400 stores a program executed by the CPU 1100, data used by such a program, and the like. The communication interface 1500 receives data from another device via the communication network 500 (corresponding to the network N shown in FIG. 2) and sends the data to the CPU 1100, and the data generated by the CPU 1100 is transmitted to another device via the communication network 500. Send to the device.

The CPU 1100 controls an output device such as a display or a printer, and an input device such as a keyboard or a mouse via the input / output interface 1600. The CPU 1100 acquires data from the input device via the input / output interface 1600. Further, the CPU 1100 outputs the data generated via the input / output interface 1600 to the output device.

The media interface 1700 reads a program or data stored in the recording medium 1800 and provides the program or data to the CPU 1100 via the RAM 1200. The CPU 1100 loads the program from the recording medium 1800 onto the RAM 1200 via the media interface 1700, and executes the loaded program. The recording medium 1800 is, for example, an optical recording medium such as a DVD (Digital Versatile Disc) or PD (Phase change rewritable Disk), a magneto-optical recording medium such as MO (Magneto-Optical disk), a tape medium, a magnetic recording medium, or a semiconductor memory. And so on.

For example, when the computer 1000 functions as the audio output device 100 according to the embodiment, the CPU 1100 of the computer 1000 realizes the function of the control unit 130 by executing the program loaded on the RAM 1200. Further, the data in the storage unit 120 is stored in the HDD 1400. The CPU 1100 of the computer 1000 reads these programs from the recording medium 1800 and executes them, but as another example, these programs may be acquired from another device via the communication network 500.

[7. others〕
Further, among the processes described in the above-described embodiment, all or a part of the processes described as being automatically performed can be manually performed, or the processes described as being manually performed can be performed. All or part of it can be done automatically by a known method. In addition, information including processing procedures, specific names, various data and parameters shown in the above documents and drawings can be arbitrarily changed unless otherwise specified. For example, the various information shown in each figure is not limited to the information shown in the figure.

Further, each component of each of the illustrated devices is a functional concept, and does not necessarily have to be physically configured as shown in the figure. That is, the specific form of distribution / integration of each device is not limited to the one shown in the figure, and all or part of them may be functionally or physically distributed / physically in any unit according to various loads and usage conditions. Can be integrated and configured. For example, the acquisition unit 131 and the selection unit 132 shown in FIG. 3 may be integrated. Further, for example, the information stored in the storage unit 120 may be stored in a predetermined storage device provided externally via the network N.

Further, in the above embodiment, the voice output device 100 has an acquisition process for acquiring predetermined information, a selection process for selecting direction information for each type of acquired information, and a voice output process for controlling voice output. I showed an example of doing. However, the above-mentioned audio output device 100 is realized by operating the acquisition server that executes the acquisition process, the selection server that executes the selection process, the audio output server that executes the audio output process, and the like in cooperation with each other. You may. In this case, the processing by the audio output device 100 is realized by the audio output system 1 including each server. Alternatively, the voice output device 100 may have the functions of the information providing server 40 and the speaker 20 in its own device.

Further, the above-described embodiments and modifications can be appropriately combined as long as the processing contents do not contradict each other.

[8. effect〕
As described above, the audio output device 100 according to the embodiment includes an acquisition unit 131, a selection unit 132, and an audio output unit 133. The acquisition unit 131 acquires predetermined information with which the types are associated. The selection unit 132 selects the corresponding voice information and the information regarding the direction in which the voice information is output for each type of predetermined information acquired by the acquisition unit 131. The voice output unit 133 controls to constantly output voice information from the output device based on the information regarding the direction selected by the selection unit 132, and the voice output unit 133 responds to changes in the predetermined information at predetermined time intervals. Change the elements that make up the information.

As described above, the voice output device 100 according to the embodiment selects the voice information corresponding to the type of information and also selects the information regarding the direction in which the voice information is output. Then, the voice output device 100 can make the user determine the type of information only by hearing, not by sight, by outputting voice based on the information about the selected direction. That is, the voice output device 100 can make the user grasp various types of information by using the voice by giving the sound directionality regardless of the volume, frequency, and the like constituting the voice.

Further, the selection unit 132 selects the identification information of the output device to which the voice information is output as the information regarding the direction when the voice information is output.

As described above, the audio output device 100 according to the embodiment can select the direction in which the sound is output by designating the output device to which the audio is output. Thereby, the voice output device 100 can make the user grasp various types of information by using voice.

Further, the acquisition unit 131 acquires a plurality of predetermined information of different types. The selection unit 132 selects different identification information for each of a plurality of types. The voice output unit 133 controls to output voice information from different output devices for each of a plurality of types.

As described above, in the audio output device 100 according to the embodiment, various types of information reach the user at once by selecting information regarding directions so that a plurality of types of information are output from different output devices. Even in this case, it is possible to realize a sound environment in which the user can easily grasp the information. Further, according to the voice output device 100, by selecting an output device for each type, it is possible for the user to simultaneously perceive voice corresponding to a plurality of types of information instead of one type of information.

Further, the voice output unit 133 changes at least one of the volume, frequency, and timbre of the voice information according to the change in the predetermined information at predetermined time intervals.

As described above, the voice output device 100 according to the embodiment changes the volume and the like according to the change of the information that is the source of the voice information, so that the user can hear only by hearing without looking at the display or the like. It is possible to grasp changes in information.

Further, the voice output unit 133 outputs voice information including a melody associated with the change according to the change in the predetermined information at predetermined time intervals.

As described above, the voice output device 100 according to the embodiment may allow the user to grasp the change in information due to the change in tune. As a result, the voice output device 100 can make the user grasp the information by a musically significant expression instead of an inorganic alert sound or the like.

Further, the acquisition unit 131 acquires the numerical value observed at predetermined time intervals as predetermined information. The voice output unit 133 changes the elements constituting the voice information according to the amount of change in the numerical value for each predetermined time in the predetermined information.

As described above, the voice output device 100 according to the embodiment may change the voice information based on the difference in the change of the information. Thereby, the voice output device 100 can make the user grasp the information showing the tendency such as how a certain information is changed.

Further, the voice output unit 133 changes at least one of the volume, frequency, and timbre of the voice information according to the amount of change in the numerical value of the predetermined information for each predetermined time.

As described above, the voice output device 100 according to the embodiment changes an element such as a volume based on the difference in the change of the information to give the user information indicating a tendency such as how a certain information is changed. It can be grasped.

In addition, the acquisition unit 131 acquires at least one of the number of views and the number of diffusions of the content associated with the preset category as predetermined information.

As described above, the voice output device 100 according to the embodiment generates voice information based on the number of views and the number of diffusions of the content, so that information such as what category of content is frequently browsed can be obtained by voice. Can be used by the user to understand.

Further, the acquisition unit 131 acquires at least one of the stock price or the number of transactions associated with the preset issue as predetermined information.

As described above, the voice output device 100 according to the embodiment generates voice information based on the stock price and the number of transactions for each brand, so that the price movement of the stock price or the like can be detected by voice without the user checking the display or the like. Information can be grasped by the user. Further, the voice output device 100 can also transmit detailed information on the price movement of the stock price to the user by defining, for example, that a violent melody is reproduced when the price movement is large. In other words, according to the voice output device 100, the user can perceive the movement of the stock price along a series of musical phrases.

Further, the acquisition unit 131 acquires at least one of the number of products sold, the number of spreads, and the number of bookmarks of the products sold via the network as predetermined information.

As described above, the voice output device 100 according to the embodiment generates voice information based on the number of views of the product and the like, so that information such as what kind of product is frequently purchased can be obtained by the user by voice. Can be grasped by.

In addition, the acquisition unit 131 acquires information regarding a predefined instruction. The voice output unit 133 outputs voice information including a tune associated with the information acquired by the acquisition unit 131.

As described above, the voice output device 100 according to the embodiment gives an instruction to a person who listens to the voice by generating voice information such as incorporating a tune (phrase) indicating a predetermined instruction into the voice being played. Can be done. That is, the voice output device 100 can not only grasp changes in information but also realize communication between users by using voice.

Although some of the embodiments of the present application have been described in detail with reference to the drawings, these are examples, and various modifications are made based on the knowledge of those skilled in the art, including the embodiments described in the disclosure column of the invention. It is possible to carry out the present invention in other modified forms.

Further, the above-mentioned "section, module, unit" can be read as "means" or "circuit". For example, the acquisition unit can be read as an acquisition means or an acquisition circuit.

1 Audio output system 20 Speaker 40 Information providing server 100 Audio output device 110 Communication unit 120 Storage unit 121 Access log storage unit 122 Voice selection storage unit 123 Output destination storage unit 124 Change information storage unit 130 Control unit 131 Acquisition unit 132 Selection unit 133 Audio output section

Claims (13)

An acquisition unit that acquires predetermined information with which types are associated, and
A selection unit for selecting the corresponding voice information and information regarding the direction in which the voice information is output for each type of predetermined information acquired by the acquisition unit.
Based on the information about the direction selected by the selection unit, the voice information is controlled to be constantly output from the output device, and the voice information is configured according to the change of the predetermined information at predetermined time intervals. The audio output section that changes the elements to be used, and
Equipped with
The selection unit selects information regarding a direction that can be viewed only by the predetermined user as information regarding the direction in which audio information corresponding to the predetermined user is output among a plurality of users located in the predetermined space. An audio output device characterized by The selection unit is
As the information regarding the direction when the voice information is output, the identification information of the output device from which the voice information is output is selected.
The audio output device according to claim 1. The acquisition unit
Acquire a plurality of the predetermined information of different types, and
The selection unit is
Select different identification information for each of the plurality of types,
The audio output unit is
Control to output audio information from a plurality of different output devices for each of the above types.
The audio output device according to claim 2. The audio output unit is
At least one of the volume, frequency, and timbre of the voice information is changed according to the change of the predetermined information at predetermined time intervals.
The audio output device according to any one of claims 1 to 3, wherein the audio output device is characterized by the above. The audio output unit is
In response to a change in the predetermined information at predetermined time intervals, the voice information including the tune associated with the change is output.
The audio output device according to any one of claims 1 to 4, wherein the audio output device is characterized. The acquisition unit
As the predetermined information, the numerical value observed at a predetermined time is acquired, and the value is obtained.
The audio output unit is
The elements constituting the voice information are changed according to the amount of change in the numerical value for each predetermined time in the predetermined information.
The audio output device according to any one of claims 1 to 5, wherein the audio output device is characterized. The audio output unit is
At least one of the volume, frequency, and timbre of the voice information is changed according to the amount of change in the numerical value of the predetermined information at predetermined time intervals.
The audio output device according to claim 6. The acquisition unit
As the predetermined information, at least one of the number of views or the number of diffusions of the content associated with the preset category is acquired.
The audio output device according to claim 6 or 7. The acquisition unit
As the predetermined information, at least one of the stock price or the number of transactions associated with the preset stock is acquired.
The audio output device according to claim 6 or 7. The acquisition unit
As the predetermined information, at least one of the number of products sold, the number of spreads, and the number of bookmarks of products sold via the network is acquired.
The audio output device according to claim 6 or 7. The acquisition unit
Get information about predefined instructions and
The audio output unit is
Outputs the voice information including the tune associated with the information acquired by the acquisition unit.
The audio output device according to any one of claims 1 to 10. It is an audio output method executed by a computer.
The acquisition process to acquire the predetermined information associated with the type, and
A selection step of selecting the corresponding voice information and information regarding the direction in which the voice information is output for each type of predetermined information acquired by the acquisition step.
Based on the information about the direction selected by the selection step, the voice information is controlled to be constantly output from the output device, and the voice information is configured according to the change of the predetermined information at predetermined time intervals. The audio output process that changes the elements to be used, and
Equipped with
In the selection step, information regarding a direction that can be viewed only by the predetermined user is selected as information regarding the direction in which the audio information corresponding to the predetermined user is output among the plurality of users located in the predetermined space. An audio output method characterized by including The acquisition procedure to acquire the predetermined information associated with the type, and
A selection procedure for selecting the corresponding voice information and information regarding the direction in which the voice information is output for each type of predetermined information acquired by the acquisition procedure, and a selection procedure.
Based on the information about the direction selected by the selection procedure, the voice information is controlled to be constantly output from the output device, and the voice information is configured according to the change of the predetermined information at predetermined time intervals. Audio output procedure to change the element to be
Equipped with
In the selection procedure, information regarding a direction that can be viewed only by the predetermined user is selected as information regarding the direction in which audio information corresponding to the predetermined user is output among a plurality of users located in the predetermined space. An audio output program characterized by having a computer do what it does.

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