CN108289245A - Automatic media information broadcasting method - Google Patents
Automatic media information broadcasting method Download PDFInfo
- Publication number
- CN108289245A CN108289245A CN201810030761.XA CN201810030761A CN108289245A CN 108289245 A CN108289245 A CN 108289245A CN 201810030761 A CN201810030761 A CN 201810030761A CN 108289245 A CN108289245 A CN 108289245A
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- China
- Prior art keywords
- sound
- time
- signature identification
- frequency
- annotation information
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000013507 mapping Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241000238558 Eucarida Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000005295 random walk Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
- H04N21/4394—Processing of audio elementary streams involving operations for analysing the audio stream, e.g. detecting features or characteristics in audio streams
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/232—Content retrieval operation locally within server, e.g. reading video streams from disk arrays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/437—Interfacing the upstream path of the transmission network, e.g. for transmitting client requests to a VOD server
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8455—Structuring of content, e.g. decomposing content into time segments involving pointers to the content, e.g. pointers to the I-frames of the video stream
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The disclosure is about a kind of automatic media information broadcasting method, include the audio annotation information of first frequency range and second frequency range including reception, signature identification sound is extracted from second frequency range by bandpass filtering, and sends it to remote server when signature identification sound meets predetermined condition to obtain associated video data.This method helps to realize the intelligence of traditional venue displaying function in the case where not changing retention equipment.
Description
Technical field
The disclosure belongs to audio and video and plays field, more particularly with respect to a kind of automatic media information broadcasting method.
Background technology
It can be waited to visitor in museum, the Art Museum, tourist attractions, fair, product demonstration and show article or specifically
The occasion of point generally is equipped with self-assisted voice and explains device to save the manpower and materials being introduced for visitor.For example,
Paintings generally labeling in the Art Museum has specific numeral mark, tourist that can be inputted on portable or fixed explanation machine
The numeral mark is to obtain the explainative information about the paintings.Fixation may be configured in fair near each product
Playing device, provide product information to be continuously interested tourist.But only playing voice messaging possibly can not get over
It is more difficult to so that tourist obtains satisfied experience, tourist may may require that picture related with showpiece, video, augmented reality are put
It reflects, the other kinds of media information such as interactive game.These other kinds of media informations need to fill traditional phonetic explaining
It is intelligent to set progress, configuration shows that screen, network function and touch screen etc. could be realized.Therefore venue side can generally upgrade at present
Old interpretation system, and lease additional mobile phone to each tourist of visiting, the intelligent apparatus such as tablet computer play audio
The media information of type in addition.For venue side, mobile phone is provided, tablet computer increases operation cost, solved compared with tradition
Say that machine is easier to break down, damage and lose.For tourist, these equipment may need to pay than traditional explanation machine
Higher rates, and size is difficult to carry also much larger than traditional explanation machine.Although tourist holds personal mobile phone or flat
Plate computer, but one be using personal equipment search media information need cumbersome login, retrieval, download and etc. can influence user
Experience is wished to provide and be not intended to mutual exclusively for tourist in venue second is that the media information in venue is generally copyright holder
It discloses in networking and is freely consulted for people.Therefore, it is necessary to provide a kind of new method so that explaining device using traditional voice
Under the premise of, mobile phone or tablet computer that each user uses by oneself fast automatic lookup and can play and the relevant media of showpiece are believed
Breath, and the people other than the user that the media information will not be to watching showpiece is visible.
Invention content
The first purpose of the disclosure is to solve the above problem in the prior art, and provide one kind in venue for difference
The method of showpiece automatic media playing information.
Disclosed herein is a kind of automatic media information broadcasting method, this method is executed by user terminal, including is received and come from
The audio annotation information in one of multiple external played sources, the audio annotation information include the sound of first frequency range and higher than the
The sound of the second frequency range of one frequency, the sound of first frequency range is by multiple first time period discontinuous in time
Composition, the sound of second frequency range is by multiple second time period groups between being distributed in two neighboring first time period on the time
At, and each second time period of same external broadcast source includes identical signature identification sound, to audio annotation information into
Exercise second frequency range at least part by bandpass filtering to recognize whether signature identification sound, at one
This feature is identified when the identical identified number of signature identification sound is more than preset frequency threshold value in preset period of time
Sound is sent to remote server by wireless network, and receives from remote server and closed with the signature identification sound identified
The video annotation information of connection.
Said program can be used for traditional explanation machine, and the mark of high band is coded by the blank parts to explainative information
Information can mark every showpiece in the case where not influencing user and listening to different feature identification informations.It is arranged in venue
Remote server judges which part showpiece user is located near according to the variation of the reception condition of this feature identification information, and from trend
User terminal transmits corresponding visual media information, and multimedia messages are realized so as to lower cost and higher efficiency
It plays.
In some embodiments, the time span of the time span of at least one first time period and other first time period
It is different.
In some embodiments, the time span of each second time period is identical.
In some embodiments, video annotation information includes at least one of picture, image, word in user
It is presented to user in terminal.
It in some embodiments, will be identified when receiving multiple and different signature identification sound in preset time
Number at most and more than the signature identification sound of preset frequency threshold value is sent to remote server by wireless network.
In some embodiments, first frequency ranging from 20Hz-16KHz.
In some embodiments, second frequency ranging from 18KHz-20KHz.
In some embodiments, to be sent in a preset period of time signature identification sound of remote server with
Transmitted by last time when feature recognition sound difference, stop the video annotation information currently presented.
In some embodiments, to be sent in a preset period of time signature identification sound of remote server with
When feature recognition sound transmitted by last time is identical, continue the video annotation information currently presented.
It in some embodiments, will be identified when receiving multiple and different signature identification sound in preset time
Number is sent to remote server more than the maximum signature identification sound of preset frequency threshold value intensity of sound by wireless network.
In some embodiments, remote server storage has reflecting for different characteristic mark sound and corresponding video annotation information
Penetrate relation table.
In some embodiments, video annotation is believed according to the time interval between the multiple signature identification sound identified
Breath is synchronous with audio annotation information.
Embodiment of the disclosure helps to realize the showpiece that automatic decision visitor is observing, and is pushed away in time to visitor
Associated media information is sent, therefore saves upgrading or increases the cost caused by venues and facilities, and visitor is omitted
Manual operation to provide higher user experience.
Description of the drawings
Present disclose provides attached drawings in order to further understand disclosure of that, and attached drawing, which illustrates, embodies concept of the present invention
Non-limiting example, rather than for making any restrictions.
Fig. 1 is the flow chart according to the media information playback method of the disclosure some embodiments.
Specific implementation mode
It will be appreciated by those skilled in the art that although term first, second etc. can be used to describe various elements herein,
These elements should not be limited by these terms.These terms are only used to various elements are distinguished from each other out.
Fig. 1 is the flow chart of media information playback method in accordance with some embodiments.Such as in fields such as museum, the Art Museums
In shop, visitor would generally lease the explaining device of various language, to understand the background information or solution in detail of every art work
The information such as say.Current explaining device is generally audio player, only includes loud speaker and keyboard.User by keyboard input with
The associated code of the art work, explaining device plays recording related with the code therewith, but can not provide video information.In step
In S101, the mobile terminal of user receives the audio annotation information from one of multiple external played sources.Multiple external played sources
The multiple independent players that can correspond to multiple and different arts work, can also be corresponding to the same of multiple and different arts work
The different audios that one player is played.Preferably, can control in advance the volume of player with toilet play about one
The audio annotation information of the part art work has been attenuated to the grade of ambient noise when traveling to another art work nearby, because
For intensity of sound with square decaying of propagation distance, this is easy to implement.The audio annotation information includes first frequency range
Sound and second frequency range higher than first frequency sound, the sound of first frequency range is by discontinuous in time
Multiple first time period compositions, the sound of second frequency range is by more between being distributed in two neighboring first time period on the time
A second time period composition.Sound in first time period may include the explanation voice to the art work, for being carried out to user
It plays.Will necessarily have intervals between the phrase of voice, phrase, sentence or paragraph due to explaining, can for example by
Second time period is arranged within these time intervals.These second time periods can be used for encoding the identification explained except voice
Information.Because the time span of phrase, phrase, sentence or paragraph is generally inconsistent, therefore it is not in each first time period
The all identical situation of time span.Second time period is because coding has identification information, preferably for same broadcast source or together
One showpiece all has identical time span to identify.Therefore, the first time being spaced between adjacent second time period two-by-two
It is also different for each played different audios that explain that the time span of section, which will have difference, the difference, be can be used for
Subsequent video media play synchronous with audio frequency media.For example, by the duration being spaced between second time period, sound can be estimated
The currently playing progress of frequency media.If video media is for coordinating audio frequency media to use, can be broadcast according to audio frequency media
The progress adjustment put is played out to corresponding progress.These first frequency ranges are, for example, 20Hz-16KHz so that user can be with
Consciousness.Second frequency range be, for example, 18KHz-20KHz can make nearly all user can not consciousness, and still in existing intelligence
The frequency range that microphone provisioned in mobile terminal can receive.
In step s 102, to audio annotation information carry out so that second frequency range at least part by band logical
Filtering is to recognize whether signature identification sound.In one embodiment, which can pass through the sound to reception
Information carries out analog-to-digital conversion, and by prior arts such as FFT, DFT spectrum analyses by the frequency of 18KHz or less and 20KHz or more
It filters out or its weight is changed to zero and is realized.After bandpass filtering, it is the frequency that possible include signature identification sound to be retained
Rate range is convenient for the identification of signature identification sound in this way.The frequency of signature identification sound can be in the range into one
The successive range or centrifugal pump of step.User terminal can by arbitrary characteristics among frequency range, duration, waveform characteristic with it is pre-
If Rule of judgment whether coincide to determine whether existing characteristics identify sound, can also directly by demodulation for example be passed through
Frequency conversion encodes the feature recognition voice signal among second frequency range signal waveform, can also directly invoke in user terminal
General built-in sound identification module such as Siri etc. is identified.
In step s 103, if the identical identified number of signature identification sound is more than in a preset period of time
This feature is then identified sound and is sent to remote server by wireless network by preset frequency threshold value, and from remote server
The associated video annotation information of signature identification sound for receiving and being identified.The video annotation information includes picture, image, word
At least one of on the subscriber terminal to user present.Video annotation information can be used for and audio annotation information
It is used cooperatively, can be used for providing the extra-services such as background introduction or interactive game.The preset period of time can be according to exhibition
The type of product and visitor visit average time and pre-set.As visitor is close to specific showpiece, visitor carries
Explaining device or showpiece near player will start to play related with showpiece audio annotation information, user is held
User terminal will also initially receive the audio annotation information.Because user can random walk in the venues and visit showpiece
It is random, the audio annotation information received by user terminal may change continuously, signature identification sound wherein included
It can moment variation.In order to more accurately judge identified signature identification sound whether can for the showpiece that user is watching,
One identification frequency threshold value in the preset period of time is set.The preset period of time and frequency threshold value can be according to venues
It is determined with the concrete type of showpiece.For example, can indicate user if recognized more than 10 times within 5 seconds time
It stops more long, needs and the relevant video information of the showpiece near showpiece.And if be not provided with frequency threshold value, but recognize spy
Video information is only asked after sign mark sound, then is easy to cause unnecessary puzzlement when user fast moves.User terminal will
Identification number is more than that the signature identification sound of frequency threshold value is sent to remote server by wireless network, and from and remotely take
Business device is received identifies the associated video annotation information of sound with this feature.Remote server may be provided in venue, for example, by
The standards such as IEEE802.11 are communicated with user terminal.Remote server storage have all showpieces video annotation information and
Different characteristic identifies the mapping table of sound and corresponding video annotation information.Signature identification can be stored in mapping table
The one-to-one relationship of the features such as time, frequency, the waveform of voice signal and video annotation information can also be utilized from feature mark
Know the voice signal that sound demodulation obtains to search in mapping table as keyword.Corresponding video in remote server
Annotation information is sent to user terminal for being played out to visitor therewith.
If there is multiple broadcast sources play simultaneously, multiple and different signature identification sound is likely to be received in preset time
Identified number then at most and more than the signature identification sound of frequency threshold value is sent to remote service by sound by wireless network
Device.Each signature identification acoustic distance user terminal can also be estimated by the relative volume size of multiple signature identification sound
Relative distance, and by relative volume it is maximum thus apart from nearest signature identification sound be sent to remote server.The phase
Can be the average value of the detected volume of each identification to volume.If to be sent to remote server in preset period of time
Signature identification sound is different from feature recognition sound transmitted by the last time, then shows visitor to be moved at other showpieces and carry out
Viewing, should stop the video annotation information currently presented, and start to receive new video media at this time.If in preset period of time
Be sent to the signature identification sound of the remote server it is identical as feature recognition sound transmitted by the last time when, then illustrate to join
Onlooker still visits near current showpiece, therefore continues the video annotation information currently presented.
It will be appreciated by those skilled in the art that other meet the deformation of disclosure range also in the model of concept of the present invention and principle
In enclosing.
Claims (10)
1. a kind of automatic media information broadcasting method, the method are executed by user terminal, it is characterised in that including：
The audio annotation information from one of multiple external played sources is received, the audio annotation information includes first frequency range
Sound and second frequency range higher than the first frequency sound, the sound of the first frequency range is by time
Discontinuous multiple first time period compositions, when the sound of the second frequency range on the time by being distributed in two neighboring first
Between multiple second time periods composition between section, and each second time period for belonging to same external broadcast source includes identical
Signature identification sound；
The audio annotation information is carried out so that the second frequency range at least part by bandpass filtering to know
It Shi Foucun not signature identification sound；
It will when the identical identified number of signature identification sound is more than preset frequency threshold value in a preset period of time
This feature mark sound is sent to remote server by wireless network；And it is received and known another characteristic from remote server
Identify the associated video annotation information of sound.
2. method described in claim 1, it is characterised in that the time span of at least one first time period with other first when
Between section time span it is different.
3. the method described in claim 2, it is characterised in that the time span of each second time period is identical.
4. the method described in claim 3, it is characterised in that the video annotation information include in picture, image, word extremely
It is few a kind of on the subscriber terminal to user's presentation.
5. the method described in claim 4, it is characterised in that further include receiving multiple and different spies in the preset time
When sign mark sound, identified number at most and more than the signature identification sound of the preset frequency threshold value is passed through wireless
Network is sent to remote server.
6. the method described in claim 5, it is characterised in that the first frequency ranging from 20Hz-16KHz.
7. method of claim 6, it is characterised in that the second frequency ranging from 18KHz-20KHz.
8. method of claim 7, it is characterised in that further include to be sent in a preset period of time it is described remote
The signature identification sound of journey server and the video annotation that when feature recognition sound difference, suspension is currently presented transmitted by the last time
Information.
9. the method described in claim 4, it is characterised in that further include receiving multiple and different spies in the preset time
When sign mark sound, identified number is led to more than the preset maximum signature identification sound of frequency threshold value intensity of sound
It crosses wireless network and is sent to remote server.
10. the method described in claim 9, it is characterised in that the remote server storage have different characteristic mark sound with it is right
Answer the mapping table of video annotation information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030761.XA CN108289245B (en) | 2018-01-12 | 2018-01-12 | Automatic media information playing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810030761.XA CN108289245B (en) | 2018-01-12 | 2018-01-12 | Automatic media information playing method |
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| CN108289245A true CN108289245A (en) | 2018-07-17 |
| CN108289245B CN108289245B (en) | 2020-11-24 |
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| CN201810030761.XA Active CN108289245B (en) | 2018-01-12 | 2018-01-12 | Automatic media information playing method |
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| CN110333840A (en) * | 2019-06-28 | 2019-10-15 | 百度在线网络技术（北京）有限公司 | Recommended method, device, electronic equipment and storage medium |
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| Publication number | Publication date |
|---|---|
| CN108289245B (en) | 2020-11-24 |
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