WO2007007684A1 - オーディオ装置 - Google Patents
オーディオ装置 Download PDFInfo
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- WO2007007684A1 WO2007007684A1 PCT/JP2006/313603 JP2006313603W WO2007007684A1 WO 2007007684 A1 WO2007007684 A1 WO 2007007684A1 JP 2006313603 W JP2006313603 W JP 2006313603W WO 2007007684 A1 WO2007007684 A1 WO 2007007684A1
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- volume
- signal
- unit
- audio
- sound
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- 238000012545 processing Methods 0.000 claims abstract description 62
- 230000005236 sound signal Effects 0.000 claims abstract description 39
- 238000005259 measurement Methods 0.000 claims description 36
- 238000001514 detection method Methods 0.000 description 38
- 238000000034 method Methods 0.000 description 31
- 238000010586 diagram Methods 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 244000309464 bull Species 0.000 description 2
- 241000282693 Cercopithecidae Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
- H04R2201/403—Linear arrays of transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
- H04S7/303—Tracking of listener position or orientation
Definitions
- the present invention relates to an audio apparatus that inputs audio signals for a plurality of positions to a speaker that outputs sound with narrow directivity toward each of a plurality of positions.
- Patent Document 1 describes an audio device that inputs an audio signal to an array speaker that can output sound beams in a plurality of directional directions. This audio apparatus can be set so that the sound beam from the array speaker is directed to a desired position of the listener. By performing this setting for a plurality of positions, a sound beam can be output from the array speaker toward a plurality of positions desired by the listener.
- Patent Document 1 Japanese Patent Laid-Open No. 06-205496
- the present invention provides a first audio device capable of outputting sound at a volume desired by each listener at the destination of each sound beam.
- the second object is to provide an audio device that does not give the listener the trouble of re-setting the audio signal when the position where the sound beam is directed is changed.
- the present invention employs the following means.
- the present invention is an audio device that inputs audio signals for a plurality of positions to a speaker that outputs sound with a narrow directivity toward each of a plurality of positions, and the plurality of positions And a table storage unit for storing a table for registering the volume information indicating the set volume of the sound for these positions in association with each other, and based on the set level control value! / And read out the volume information for the plurality of positions by referring to the table and a signal processing unit for adjusting the output level of each audio signal, and based on the read information! /, And a signal processing control unit configured to set a level control value of an audio signal for each position in the signal processing unit.
- the table storing unit stores a table for associating and registering a plurality of positions where sound is directed and sound volume information indicating set sound volume of sound directed to these positions. . Then, the signal processing control unit reads out the volume information for a plurality of positions with reference to this table, and the level control value of the audio signal is set in the signal processing unit based on the read information. Based on the set level control value, the output level of the audio signal for each position is adjusted by the signal processing unit. As a result, the volume control can be performed individually for each voice directed to different positions. For this reason, when a plurality of positions are set as listening positions of a plurality of listeners, it is possible to provide sound to each listener at a desired volume of the listener.
- the present invention is the above audio apparatus, further comprising an instruction signal input unit for inputting an instruction signal for instructing a change in volume setting.
- the table storage unit receives identification information for identifying a listener in addition to the plurality of positions and volume information.
- the associated table is stored.
- the volume processing control unit changes the volume information indicated by the identification information in the table to the volume indicated by the instruction signal.
- the signal processing unit is set so that the position corresponding to the identification information and the volume information after the change are obtained by referring to the table, and the sound directed to the obtained position becomes the volume indicated by the volume information. Change the level control value.
- the instruction signal for instructing the change of the volume setting is input to the instruction signal input unit.
- the table storage unit stores a table in which identification information for identifying a listener is registered in association with each other in addition to a plurality of positions and volume information.
- the signal processing control unit changes the volume information indicated by the identification information in the table. This makes it possible to manage the listener, the position where sound is directed, and the volume setting in association with each other.
- the signal processing control unit obtains the position corresponding to the identification information and the changed volume information with reference to the table. Then, the level control value set in the signal processing unit is changed so that the sound directed to the acquired position becomes the volume indicated by the volume information.
- the volume setting is changed using the table that manages the listener, the sound directing position, and the volume setting in association with each other. For this reason, even if the position where the voice is directed is changed, the changed position can be associated with the identification information and the volume setting. As a result, even when the sound directing position is changed, it is not necessary to set the audio signal such as the volume again.
- the present invention is the above-described audio device, wherein the instruction signal input unit inputs position measurement information for measuring the position of the portable terminal transmitted by a listener.
- the signal processing control unit measures the position of the portable terminal using the position measurement information when the position measurement information is input to the instruction signal input unit, and determines the position of the measured portable terminal.
- the table is associated with the identification information included in the position measurement information. It is memorized in a bull.
- the position measurement information for measuring the position of the mobile terminal is input by the instruction signal input unit as well as the mobile terminal power used by the listener.
- the signal processing control unit measures the position of the mobile terminal using the position measurement information.
- the measured position is stored in the table in association with the identification information included in the position measurement information.
- the position of the portable terminal used by the listener is measured as the listening position of the listener, and the sound is set to be directed to this position. This makes it possible to direct the sound relatively accurately with respect to the listening position.
- the listening position measured in association with the identification information included in the position measurement information input from the mobile terminal is registered in the table, whereby the listener and the listening position can be managed in association with each other.
- the present invention is the above-described audio apparatus, wherein the speaker is an array speaker having a plurality of speaker units. According to this configuration, it becomes easy to output each sound beam toward each of a plurality of positions.
- the direction of the sound output from the speaker is controlled by setting the delay time given to each signal output to the plurality of speaker units arranged, and signal processing is performed.
- the control unit sets delay control values associated with a plurality of positions in the signal processing unit, and the signal processing unit assigns a delay time to each signal according to the delay control value set by the signal processing control unit. It is characterized by that.
- the volume control can be performed individually for each sound directed to different positions. For this reason, when a plurality of positions are set as listening positions of a plurality of listeners, sound can be provided to each listener at a desired volume of the listener.
- the volume setting is changed using a table that manages the listener, the sound directing position, and the volume setting in association with each other. For this reason, even if the setting of the position where the listener directs the sound is changed, the changed position can be associated with the identification information and the volume setting. to this Therefore, it is possible to provide an audio device that does not need to perform setting for an audio signal such as volume setting again even when the sound directing position is changed.
- FIG. 1 is a diagram for explaining the configuration of an array speaker constituting the karaoke system of the present embodiment and the directivity of an audio beam output from the array speaker.
- FIG. 2 is a diagram showing a position information table T.
- FIG. 3 is a block diagram schematically showing the configuration of the karaoke system 1.
- FIG. 4 is a diagram for explaining an example of position detection processing.
- FIG. 5 is a flowchart (part 1) showing a position detection process executed by the karaoke system shown in FIG.
- FIG. 6 is a flowchart (part 2) showing a position detection process executed by the karaoke system shown in FIG.
- FIG. 7 is a flowchart showing a volume change process executed by the karaoke apparatus shown in FIG. 3.
- the karaoke system 1 includes a karaoke device 2 for playing karaoke music, an array speaker 3 for outputting an audio signal input from the force rocket device 2, and a remote controller for operating the force rocket device 2. 4 (hereinafter referred to as “remote control 4”).
- FIG. 1 is a diagram for explaining the configuration of the array speaker 3 constituting the karaoke system 1 of the present embodiment and the directivity of the sound beam output from the array speaker 3.
- the array speaker 3 has a long and substantially rectangular parallelepiped shape, and a plurality of speaker units SU (SU1 to SUn) are arranged in a line on one side thereof.
- Audio signals are input to the speaker units SU from the karaoke apparatus 2, respectively.
- Each input audio signal is given a delay time such that the sound beam output from the speaker units SU1 to SUn is directed to the focal point. That is, as indicated by the arrows in the figure, a delay time is given so that each sound of each speaker unit SU reaches the focal point at the same time. This allows the voice beam to be focused on It is possible to control the directivity direction of the sound beam.
- the array speaker 3 is connected to each of these listeners hi ⁇ !
- Each sound beam is output with the listening position of ⁇ 3 as the focal point and directed to this listening position.
- This Karaoke System 1 is a listener hi that directs this voice beam! It has a function to detect the coordinates of ⁇ 3 listening position (hereinafter referred to as “listening position coordinates”).
- FIG. ⁇ 3 has a remote control 4 for each karaoke store.
- This karaoke system 1 listens to the position coordinates of each remote control 4 (4A-4C). Detected as ⁇ 3 listening position coordinates.
- the processing for detecting the listening position coordinates (position detection processing) will be described in detail later.
- Each remote controller 4 is given a unique identification ID.
- the identification ID of the remote controller 4 is used as identification information for identifying the listener who is the user of the remote controller 4, and the position information test as shown in FIG. Register with one bull T.
- This position information table T is stored in the karaoke apparatus 2.
- the listener hi ⁇ ! It may be configured to assign a unique identification ID to ⁇ 3.
- the listeners hl to h3 input this identification ID to the remote controller 4 that they use.
- volume setting can be changed individually for each sound beam directed to the ⁇ 3 listening position. This change in the volume setting is performed when a volume change command signal for changing the remote controller's 4 sound volume setting is input, and can be changed to a listener's desired volume setting. According to this, listener hi ⁇ ! ⁇ 3 can listen to the sound at the desired volume.
- This volume setting change process (volume change process) will be described in detail later.
- the volume setting for each sound beam is also registered in the position information table T shown in FIG. 2 in association with the identification ID and listening position coordinates. Therefore, in the position information table T, volume settings (volume information), listening position coordinates, and identification IDs for identifying the listeners hl to h3 are registered in association with each other. For this reason, in this karaoke system 1, Na hi ⁇ ! Even if the listening position of i3 is changed and the listening position coordinates are changed, the volume setting of the sound beam directed to the listening position after changing the identification ID can be kept the same as before the change. Monkey.
- FIG. 3 is a block diagram schematically showing the configuration of the karaoke system 1.
- the array speaker 3 includes an infrared light receiving unit 31 in addition to the speaker unit SU described above.
- the infrared light receiving unit 31 receives a command signal which is also infrared light from the remote controller 4, converts the command signal into an electric signal, and inputs it to the karaoke device 2 (command signal input unit 25 described later).
- the karaoke 2 includes an AD converter 21, an automatic performance unit 22, a signal processing unit 23, an amplifier 24, a command signal input unit 25, a controller 26, and a storage unit 27.
- the AD converter 21 receives the singing voice signal of the singer from the microphone M (hereinafter referred to as “Mic M”).
- the AD converter 21 converts the input analog singing voice signal into a digital voice signal and inputs it to the automatic performance section 22.
- the automatic performance unit 22 includes a storage unit that stores karaoke music data, a sequencer that plays the karaoke music data, a sound source, and the like, and also includes an operation unit that receives a user operation.
- the automatic performance unit 22 receives the singing voice signal from the AD converter 21.
- the automatic performance unit 22 synthesizes the input singing voice signal and the voice signal of the powerful music piece that is automatically played by the sequencer.
- the automatic performance unit 22 inputs the synthesized audio signal to the signal processing unit 23.
- the signal processing unit 23 is realized by, for example, a DSP (Digital Signal Processor).
- the signal processing unit 23 controls the sound beam independently for each listening position so that independent sound beams are formed toward a plurality of listening positions.
- the listening position for directing the sound beam is listener hi! Since there are three ⁇ 3 listening positions, the signal processing unit 23 performs three independent beam controls on the audio signal.
- the sound beam signals generated by each control are described as signals xl to x3.
- a level control value is set from the controller 26 in the signal processing unit 23.
- This level control value is set in association with the listening position, and the signal processing unit 23 performs independent level adjustment for each listening position on the audio signal. This makes the signal xl ⁇ X3 will be adjusted to the output level according to the corresponding level control value respectively
- the level is adjusted independently for each listening position with respect to the audio signal. For this reason, the sound volume setting can be made different for each sound beam directed to different listening positions.
- listener hi ⁇ ! ⁇ 3 can listen to sound at different volume. For example, when listener hi is singing, listener hi wants to listen to his song at a loud volume, but other listeners h2 and h3 may not want to listen at a loud volume. In this case, only the listener hi who can listen to the singing at high volume in the listeners h2 and h3 can improve the singing at high volume.
- the signal processing unit 23 branches the signals xl to x3 whose output levels have been adjusted by the number (n) of each speaker unit SU. That is, each of the signals xl to x3 corresponding to the listening positions of the listeners hi to h3 is branched n times to generate 3 Xn signals. Signals obtained by branching n signals xl are described as signals xl l to xln. Signals obtained by branching n number of signals x2 are described as signals x21 to x2n. Signals obtained by branching n number of signals x3 are described as signals x31 to x3n.
- a delay control value is set from the controller 26 in association with the listening position.
- the signal processing unit 23 gives a delay time to each of the signals xl l to xln, x21 to x2n, x31 to x3n according to the delay control value.
- a delay time corresponding to the delay control value corresponding to the listening position of the listener hi is given.
- a delay time corresponding to the delay control value corresponding to the listening position of listener h2 is given.
- a delay time corresponding to the delay control value corresponding to the listening position of the listener h3 is given. According to this, listener hi ⁇ ! The sound beam can be output so as to be directed to the listening position of ⁇ 3.
- the signal processing unit 23 inputs each signal xl l to xln, x21 to x2n, x31 to x3 n to which the delay time is added to the corresponding amplifier 24.
- the amplifier 24 is provided for the speaker units SU1 to SUn. When these amplifiers 24 are distinguished, the same numbers as the corresponding speaker units SU 1 to SUn are given and described as amplifiers 241 to 24 ⁇ . [0041] Of the signals xl l to xln, x21 to x2n, and x31 to x3n, signals corresponding to the same force unit SU are input from the signal processing unit 23 to the amplifiers 241 to 24n.
- the amplifier 24 1 receives the power
- the speaker unit SU1 receives the human power signal xl l, x21, x31 force S.
- Amplifiers 241 to 24n amplify the input signals and input them to the corresponding speaker units SU1 to SUn. With this, from each speaker unit SUl ⁇ SUn, listener hi ⁇ ! An audio beam is output to each of the ⁇ 3 listening positions.
- the command signal input unit 25 is an interface circuit for receiving an input of a command signal from the infrared light receiving unit 31.
- the command signal input unit 25 inputs the input command signal to the controller 26.
- This command signal includes a music selection command signal for instructing selection of karaoke music, a position detection command signal for instructing detection of listening position coordinates, a volume change command signal for instructing change of volume, etc.
- the position detection command signal and the volume change command signal include the identification ID of the remote controller 4 that is the transmission source of this signal, and this indicates which remote controller 4 of the remote controllers 4A to 4C is the transmission source. Can now be identified.
- the controller 26 is realized by a CPU or the like, for example, and controls the operation of each part of the karaoke apparatus 2.
- the controller 26 executes the program stored in the storage unit 27 to execute position detection processing on the force raoke device side.
- This karaoke device side position detection process is a remote control 4 power received listener hi ⁇ ! Using the notification signal (position measurement information) to measure the listening position of ⁇ 3, the listener hi ⁇ ! Measure the detection position of ⁇ 3.
- FIG. 4 is a diagram for explaining an example of the position detection process.
- the remote controller 4 includes a microphone 41 as will be described later.
- a notification signal for notifying this input is sent.
- a time tl from the output of the position measurement audio power speaker unit SU1 to the input of the microphone 41 is obtained.
- the time t2 until the speaker unit SUn force outputs the position measurement sound and is input to the microphone 41 is obtained.
- the angle ⁇ is obtained by the cosine theorem, that is, the following equation (1).
- This angle ⁇ is the speaker unit S
- Dl 2 D2 2 + W 2 - 2 X D2 XWX cos ( ⁇ ) ⁇ ⁇ ⁇ (1)
- the controller 26 calculates the listening position coordinates (XI, Y1) with the center position of the speaker unit SUn as the origin (0, 0).
- the listening position coordinates are angle ⁇ , distance D2, and distance
- the controller 26 detects the detected listener hi ⁇ !
- the listening position coordinates of ⁇ 3 are registered in the position information table T shown in Fig. 2 in association with the listener ID. Further, the controller 26 reads position coordinates from the position information table T, and sets a delay control value in the signal processing unit 23 so as to direct the sound beam to the read listening position.
- the above is a listener hi ⁇ ! This is an example of a method for detecting the listening position of ⁇ 3, and the listening position may be detected using other methods.
- the controller 26 can also be set so that the output sound from the array speaker 3 can be heard in the entire karaoke room by releasing the directivity control of the sound beam to each listening position.
- the controller 26 executes a program stored in the storage unit 27, thereby executing a volume changing process for changing the volume setting of the sound beam.
- a volume change process listener hi ⁇ !
- the volume of each sound beam directed to ⁇ 3 listening position can be changed individually.
- the controller 26 sets the level control value of the signal processing unit 23 so that the sound reaches the listening position at the volume indicated by the volume change command signal.
- the listener again sets the volume for the new position coordinate. Must be set.
- the identification ID is associated with the listening position coordinates and the volume setting
- the new listening position coordinate can be associated with the volume setting based on the identification ID. This saves the listener from having to set the volume again after changing the listening position coordinates.
- the sound volume of the sound beam can be individually set as described above.
- the controller 26 changes the volume of all sound beams to the volume indicated by the volume change command signal.
- the storage unit 27 is a rewritable storage device such as a flash memory, for example, and is provided with a position information table storage area 271 for storing the position information table T as shown in FIG.
- the storage unit 27 stores various programs for causing the karaoke apparatus 2 to perform volume change processing and position detection processing, and data necessary for executing the programs.
- the remote control 4 includes an infrared ray light emitting unit 42, an operation unit 43, a remote control control unit 44, and a waveform shaping unit 45.
- the infrared light emitting unit 42 includes an infrared light emitting element and the like, and outputs a command signal corresponding to the input command code as infrared light.
- the operation unit 43 includes a plurality of operation buttons 431, and accepts a listener operation when the operation buttons 431 are pressed with a finger or the like. The operation unit 43 inputs an operation signal indicating the operation button 431 pressed by the listener to the remote control unit 44.
- the remote control unit 44 is realized by a microcomputer or the like, and controls the operation of each unit of the remote controller 4.
- the remote control unit 44 stores a command code corresponding to each operation button 431. Then, when the operation signal is input, the remote control unit 44 specifies a command code corresponding to the operation button 431 indicated by the operation signal, and the specified command code is specified. Input to the infrared emitter 42.
- the remote controller control unit 44 causes the karaoke device 2 to A command code for executing the position detection process on the karaoke device side is input to the infrared light emitting unit 42.
- the command code is output from the infrared light emitting unit 42 as a position detection command signal.
- the remote control unit 44 is A command code for causing the device 2 to execute the volume changing process is input to the infrared light emitting unit 42. Then, the command code is output from the infrared light emitting unit 42 as a volume change command signal.
- the remote controller control unit 44 executes a position detection process on the remote controller side by executing a stored program.
- the position detection process on the remote controller side is a process of transmitting a notification signal for measuring the position coordinate of the remote controller 4 to the array speaker 3.
- the measurement sound is output from the speaker units SU1 and SUn.
- the notification signal is transmitted using the infrared light emitting unit 42 in order to notify the input.
- the waveform shaping unit 45 receives an audio signal collected by the microphone 41.
- the waveform shaping unit 45 includes a filter such as a band pass filter, and the frequency of the measurement audio is set in this filter.
- the waveform shaping unit 45 separates only the measurement sound component from the input signal by passing the input signal through the filter.
- the waveform shaping unit 45 then inputs the separated measurement audio signal to the remote control unit 44.
- FIGS. 5 and 6 are flowcharts (No. 1 and No. 2) including position detection processing executed by the karaoke system 1 shown in FIG. Among these position detection processes, what is executed by the remote controller 4 is a position detection process on the remote controller side, and what is executed by the karaoke apparatus 2 is a position detection process on the karaoke apparatus side. [0062] First, the remote control unit 44 repeatedly determines whether or not the position detection button 431a has been pressed at predetermined time intervals, and waits until it determines YES (Sl).
- the remote control unit 44 transmits a position detection command signal instructing execution of the position detection process on the karaoke side using the infrared light emitting unit 42. (S2).
- the controller 26 In the karaoke apparatus 2, the controller 26 repeatedly determines whether or not the position detection command signal is input, and waits until it determines YES (S3). If it is determined that the position detection command signal has been input (YES in S3), the controller 26 determines whether or not the identification ID has been recognized (S4). That is, the controller 26 determines whether or not the identification ID included in the position detection command signal has been acquired.
- the controller 26 If the identification ID is not recognized (NO in S4), the controller 26 outputs an error sound signal to the signal processing unit 23, and the process returns to step S3. On the other hand, when the identification ID is recognized (YES in S4), the controller 26 stores the identification ID in the storage unit 27. Thereafter, the controller 26 instructs the signal processing unit 23 to generate a measurement audio signal and input it to the speaker unit SU1, and starts timing using the built-in timing means (S5).
- the remote control unit 44 After the execution of step S2, the remote control unit 44 repeatedly determines at every predetermined time interval whether or not it has received the measurement voice, and waits until it determines YES (S6). If it is determined that the measurement voice has been received (YES in S6), the remote control unit 44 transmits a notification signal to notify the reception using the infrared light emitting unit 42 (S7).
- step S1 When the other remote controller 4 that has transmitted the start command signal in step S1 receives the measurement sound, the other remote control 4 discards the measurement sound. For this reason, the notification signal is not transmitted from the other remote controllers 4, and the notification signal is transmitted only from the remote controller 4 that transmitted the start command signal.
- step S5 the karaoke apparatus 2 repeatedly determines at every predetermined time interval whether or not the controller 26 has input the notification signal, and waits until it determines YES (S8). If it is determined that a notification signal has been input (YES in S8), the controller 26 ends the time measurement and calculates the time tl from this time measurement (S9). Next, the controller 26 instructs the signal processing unit 23 to input the measurement audio signal to the speaker unit SUn, and starts measuring using the built-in timing means (S10). In the remote controller 4, after the execution of step S7, the remote control unit 44 repeatedly determines whether or not it has received the measurement audio at predetermined time intervals, and waits until it determines YES (S11).
- remote control unit 44 uses infrared light emitting unit 42 to notify this reception. Is transmitted (S12). Thereafter, the remote controller control unit 44 returns the position detection process on the remote controller side to step S1.
- step S10 the karaoke apparatus 2 repeatedly determines whether or not the controller 26 has input a reception notification message at predetermined time intervals, and waits until it determines YES (S13). If it is determined that a reception notification message has been input (YES in S13), the controller 26 ends timing and calculates time t2 from this timing (S14).
- the controller 26 calculates the listening position coordinates by performing the calculations of the expressions (1) to (3) as described above using the time tl and the time t2 (S15). Then, the controller 26 reads the identification ID from the storage unit 27 and registers the listening position coordinates in the position information table T in association with the read identification ID (S16).
- the controller 26 registers the volume information with a predetermined initial value. If the identification ID, listening position coordinates, and volume information are already registered, the controller 26 changes only the listening position coordinates corresponding to the read identification ID, and does not change the volume information.
- the controller 26 reads the listening position coordinates and the volume information from the position information table T. Then, the controller 26 sets a delay control value in the signal processing unit 23 so that the sound beam is directed to the listening position indicated by the listening position coordinates (S17). At the same time, the controller 26 sets the level control value so that the sound beam reaches the listening position at the volume indicated by the volume information.
- the controller 26 generates an ending sound signal to the signal processing unit 23 to generate a speaker. Instruct units SUl to SUn to input.
- the signal processing unit 23 executes the processing as instructed, and thereby an end sound is generated (S18). Instead of the end sound, normal end may be displayed on a display unit (not shown) of the remote controller 4. Thereafter, the controller 26 returns the karaoke side position detection process to step S3.
- the position coordinates of the position of the remote controller 4 can be measured as the listening position coordinates. Since the measured listening position coordinates are registered in the position information table T in association with the identification ID, the listener hi ⁇ ! ⁇ 3 and listening position can be associated individually. As a result, even if there is a change in listening position, listener hi ⁇ ! It is possible to identify which listener in ⁇ 3 has changed in listening position.
- FIG. 7 is a flowchart showing the sound volume changing process executed by the karaoke apparatus 2 shown in FIG.
- the controller 26 repeatedly determines whether or not a volume change command signal has been input at predetermined time intervals, and waits until it determines YES (S20). If it is determined that the volume change command signal has been input (YES in S20), the controller 26 determines whether or not the individual volume change mode is set (S21).
- the selection and release of the individual volume change mode is performed by a listener operation using the operation unit 43 of the remote controller 4.
- a flag indicating this selection is stored in the controller 26, and when the individual volume change mode is canceled, the flag is deleted.
- the controller 26 sets all the sound beams to the volume indicated by the volume change command signal.
- the volume information of all the identification IDs registered in the position information table T is changed (S22). For example, when a volume change command signal for lowering the volume by 2 levels is input, the volume information registered in the position information table T is changed to decrease the volume by 2 levels.
- the controller 26 changes the setting of the level control values of the signals xl to x3 so that the sound volume of each sound beam becomes the sound volume indicated by the sound volume change command signal (S23).
- the controller 26 refers to the position information table T (S24).
- the volume change command signal includes an identification ID for identifying the remote controller 4 as the transmission source.
- Controller 2 6 refers to the position information table T with this identification ID.
- the controller 26 determines whether or not the identification ID is registered in the position information table ⁇ (S25). If it is determined that the identification ID is not registered in the position information table T (NO in S25), the controller 26 returns this process to step S20. If the individual volume change mode is set and the identification ID is not registered in the position information table T, the listening position coordinates are not detected, and an audio beam directed to the remote control 4 of the transmission source is emitted. It is in a state where it is not applied. For this reason, this processing without changing the volume returns to step S20.
- the controller 26 determines the volume information of the listening position coordinates corresponding to the identification ID in the position information table T. Is changed (S26). This change is made so that the volume of the sound beam becomes the volume indicated by the volume change command signal. Then, the controller 26 reads the listening position coordinates corresponding to the identification BR> h D and the volume information after the change.
- the controller 26 changes the level control value of the signal processing unit 23 so that the sound beam directed to the listening position indicated by the listening position coordinates has the volume indicated by the volume change command signal (S27). . Specifically, the level control value of the corresponding one of the signals xl to x3 is changed.
- the listener hi ⁇ ! The volume setting of each sound beam directed to the ⁇ 3 listening position can be changed individually to the listener's desired volume setting. According to this, listener hi ⁇ ! ⁇ 3All members can listen to the sound at their desired volume setting. For example, in the situation where listener h 1 is singing and this song is not good and listeners h2 and h3 do not want to listen too much, only the volume of the directional sound beam can be lowered to listeners h2 and h3. it can.
- an identification ID is included in the volume change command signal, and the position information table T is referred to by this identification ID, and the listening position coordinates corresponding to the identification ID are read out. Then, the level control value corresponding to the listening position coordinates is controlled. In this way, the listener hi ⁇ ! Since the volume is controlled by identifying the corresponding listener among ⁇ 3, the listeners hl to h3 do not need to redo the operation for setting the volume even if the listening position coordinates are changed. The following modifications can be adopted for the present embodiment.
- the force for detecting the position coordinates of the remote controller 4 when the position detection button 431a is pressed is not limited to this configuration.
- the position of the remote controller 4 may be repeatedly detected until the operation button 431 for ending this position detection is pressed. According to this, if the listener moves with the remote control 4 during this period, the position coordinates are detected following this movement.
- the volume setting of each sound beam is changed individually only when the listener presses the volume change button 43 lb, but the present invention is not limited to this configuration. That is, controller 26 is a listener hi ⁇ ! The volume may be automatically changed to the optimal volume setting for the ⁇ 3 listening position. For example, the controller 26 sets the volume of the sound beam directed to the listening position far from the array speaker 3 to be larger than the volume of the sound beam directed to the near listening position.
- the measurement audio signal is input to the speaker units SU1 and SUn.
- the present invention is not limited to this, and the measurement audio signal is input to another speaker unit SU. May be.
- the listening position coordinates are measured using the measurement sound output from the speaker units SU1 and SUn, but other methods are used to detect the listening position coordinates. May be used.
- the sound field may be video-recorded and the listening position of the listeners hl to h3 may be measured using this video image.
- each speaker beam SU may be output without sharing each speaker unit SU with each sound beam, but with different partial forces among the speaker units SU1 to SUn.
- the remote controller 4 may not include the microphone 41. It is only necessary to connect an external microphone 41 to the remote control 4 and place the microphone 41 at the listening position. Furthermore, the present invention is not limited to the remote controller 4, and may be another terminal device (for example, a general-purpose device) that can input a signal from the microphone 41 and has a function of communicating with the karaoke device 2. [0093] (7) Also, the karaoke apparatus 2 and the array speaker 3 are separated, but they may be integrally formed. The karaoke apparatus 2 includes a function unit that performs signal processing for adjusting a delay time and an output level on the audio signal, but the function unit may be provided in a separate audio apparatus.
- this audio device inputs from the karaoke device 2 a voice signal obtained by synthesizing the voice signal of the karaoke music and the voice signal of the singer's song. Then, the audio device controls the output level of the input audio signal and gives a delay time, and then inputs it to the speaker units SU1 to SUn.
- the configuration of the array speaker 3 is not limited to this configuration including the force composed of the speaker units SU1 to SUn arranged in a line.
- speaker unit SU forces arranged in a matrix or noise-cam shape may also be configured.
- a normal speaker is used to listen to a plurality of sound beams. It may be directed to the listening position of ⁇ 3.
- the present invention is not limited to being applied to a karaoke apparatus. What is necessary is just to apply to the audio apparatus which outputs an audio
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- General Health & Medical Sciences (AREA)
- Circuit For Audible Band Transducer (AREA)
- Stereophonic System (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200680025002.XA CN101218849B (zh) | 2005-07-08 | 2006-07-07 | 音频设备 |
CA2614549A CA2614549C (en) | 2005-07-08 | 2006-07-07 | Audio apparatus |
EP06780878A EP1906697A4 (en) | 2005-07-08 | 2006-07-07 | AUDIO SETUP |
US11/988,435 US8184836B2 (en) | 2005-07-08 | 2006-07-07 | Audio apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005200021A JP4802580B2 (ja) | 2005-07-08 | 2005-07-08 | オーディオ装置 |
JP2005-200021 | 2005-07-08 |
Publications (1)
Publication Number | Publication Date |
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WO2007007684A1 true WO2007007684A1 (ja) | 2007-01-18 |
Family
ID=37637077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/313603 WO2007007684A1 (ja) | 2005-07-08 | 2006-07-07 | オーディオ装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8184836B2 (ja) |
EP (1) | EP1906697A4 (ja) |
JP (1) | JP4802580B2 (ja) |
CN (1) | CN101218849B (ja) |
CA (1) | CA2614549C (ja) |
WO (1) | WO2007007684A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101118746B (zh) * | 2007-09-17 | 2012-03-21 | 腾讯科技(深圳)有限公司 | 基于双声道音频数据标定的方法及多人语音通话系统 |
KR101292206B1 (ko) * | 2007-10-01 | 2013-08-01 | 삼성전자주식회사 | 어레이 스피커 시스템 및 그 구현 방법 |
JP5292946B2 (ja) * | 2008-06-30 | 2013-09-18 | ヤマハ株式会社 | スピーカアレイ装置 |
EP2149983A1 (en) * | 2008-07-29 | 2010-02-03 | Lg Electronics Inc. | A method and an apparatus for processing an audio signal |
KR20120015218A (ko) * | 2010-08-11 | 2012-02-21 | 엘지이노텍 주식회사 | 데이터 재생 장치 |
CN104658237A (zh) * | 2013-11-19 | 2015-05-27 | 鸿富锦精密工业(武汉)有限公司 | 红外控制方法及红外控制系统 |
US9986358B2 (en) * | 2014-06-17 | 2018-05-29 | Sharp Kabushiki Kaisha | Sound apparatus, television receiver, speaker device, audio signal adjustment method, and recording medium |
CN105933822B (zh) * | 2016-05-18 | 2019-04-23 | 合肥杰发科技有限公司 | 车载音响控制系统及方法 |
US10389884B2 (en) * | 2017-02-10 | 2019-08-20 | David Clark Company Incorporated | Browser based digital intercom system |
US10560825B2 (en) | 2017-02-10 | 2020-02-11 | David Clark Company Incorporated. | Digital intercom system having multiple master stations |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11109982A (ja) * | 1997-09-30 | 1999-04-23 | Sanyo Electric Co Ltd | カラオケシステム |
JP2000181468A (ja) * | 1998-12-18 | 2000-06-30 | Sega Enterp Ltd | 音響画像処理装置 |
US20030185404A1 (en) | 2001-12-18 | 2003-10-02 | Milsap Jeffrey P. | Phased array sound system |
JP2005064746A (ja) * | 2003-08-08 | 2005-03-10 | Yamaha Corp | オーディオ再生装置、ラインアレイスピーカユニットおよびオーディオ再生方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01276900A (ja) * | 1988-04-28 | 1989-11-07 | Hitachi Ltd | 音場再生装置 |
JP3205625B2 (ja) | 1993-01-07 | 2001-09-04 | パイオニア株式会社 | スピーカ装置 |
JPH06225397A (ja) | 1993-01-25 | 1994-08-12 | Sanyo Electric Co Ltd | 音場制御装置 |
DE4307490A1 (de) * | 1993-03-10 | 1994-09-15 | Joerg Cohausz | Stereophone oder quadrophonische Anlage |
JPH09238390A (ja) * | 1996-02-29 | 1997-09-09 | Sony Corp | スピーカ装置 |
JPH1063470A (ja) * | 1996-06-12 | 1998-03-06 | Nintendo Co Ltd | 画像表示に連動する音響発生装置 |
US6577738B2 (en) * | 1996-07-17 | 2003-06-10 | American Technology Corporation | Parametric virtual speaker and surround-sound system |
US6574339B1 (en) * | 1998-10-20 | 2003-06-03 | Samsung Electronics Co., Ltd. | Three-dimensional sound reproducing apparatus for multiple listeners and method thereof |
WO2001062045A1 (en) | 2000-02-18 | 2001-08-23 | Bang & Olufsen A/S | Multi-channel sound reproduction system for stereophonic signals |
IL134979A (en) * | 2000-03-09 | 2004-02-19 | Be4 Ltd | A system and method for optimizing three-dimensional hearing |
EP1370115B1 (en) * | 2002-06-07 | 2009-07-15 | Panasonic Corporation | Sound image control system |
KR20050047634A (ko) * | 2003-11-18 | 2005-05-23 | 현대자동차주식회사 | 스피커 각도조절을 통한 사운드 품질향상 방법 |
JP2005173137A (ja) * | 2003-12-10 | 2005-06-30 | Yamaha Corp | カラオケ装置 |
JP2005197896A (ja) | 2004-01-05 | 2005-07-21 | Yamaha Corp | スピーカアレイ用のオーディオ信号供給装置 |
-
2005
- 2005-07-08 JP JP2005200021A patent/JP4802580B2/ja not_active Expired - Fee Related
-
2006
- 2006-07-07 EP EP06780878A patent/EP1906697A4/en not_active Withdrawn
- 2006-07-07 US US11/988,435 patent/US8184836B2/en not_active Expired - Fee Related
- 2006-07-07 CA CA2614549A patent/CA2614549C/en not_active Expired - Fee Related
- 2006-07-07 CN CN200680025002.XA patent/CN101218849B/zh not_active Expired - Fee Related
- 2006-07-07 WO PCT/JP2006/313603 patent/WO2007007684A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11109982A (ja) * | 1997-09-30 | 1999-04-23 | Sanyo Electric Co Ltd | カラオケシステム |
JP2000181468A (ja) * | 1998-12-18 | 2000-06-30 | Sega Enterp Ltd | 音響画像処理装置 |
US20030185404A1 (en) | 2001-12-18 | 2003-10-02 | Milsap Jeffrey P. | Phased array sound system |
JP2005064746A (ja) * | 2003-08-08 | 2005-03-10 | Yamaha Corp | オーディオ再生装置、ラインアレイスピーカユニットおよびオーディオ再生方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1906697A4 |
Also Published As
Publication number | Publication date |
---|---|
CA2614549C (en) | 2012-01-03 |
US8184836B2 (en) | 2012-05-22 |
JP2007019938A (ja) | 2007-01-25 |
US20090262962A1 (en) | 2009-10-22 |
CA2614549A1 (en) | 2007-01-18 |
EP1906697A1 (en) | 2008-04-02 |
CN101218849B (zh) | 2016-02-24 |
CN101218849A (zh) | 2008-07-09 |
EP1906697A4 (en) | 2010-07-07 |
JP4802580B2 (ja) | 2011-10-26 |
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