WO2022030172A1 - 音声信号処理装置、音声信号処理方法、及び、プログラム - Google Patents

音声信号処理装置、音声信号処理方法、及び、プログラム Download PDF

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Publication number
WO2022030172A1
WO2022030172A1 PCT/JP2021/025732 JP2021025732W WO2022030172A1 WO 2022030172 A1 WO2022030172 A1 WO 2022030172A1 JP 2021025732 W JP2021025732 W JP 2021025732W WO 2022030172 A1 WO2022030172 A1 WO 2022030172A1
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WIPO (PCT)
Prior art keywords
audio signal
signal processing
input terminal
processing device
selector
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Ceased
Application number
PCT/JP2021/025732
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English (en)
French (fr)
Japanese (ja)
Inventor
博規 北川
政明 友田
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Publication date
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Priority to JP2022541170A priority Critical patent/JP7373760B2/ja
Priority to EP21853356.0A priority patent/EP4195696A4/en
Priority to US17/912,740 priority patent/US12046258B2/en
Publication of WO2022030172A1 publication Critical patent/WO2022030172A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10305—Improvement or modification of read or write signals signal quality assessment
    • G11B20/10398—Improvement or modification of read or write signals signal quality assessment jitter, timing deviations or phase and frequency errors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/10537—Audio or video recording
    • G11B2020/10546—Audio or video recording specifically adapted for audio data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/15—Aspects of sound capture and related signal processing for recording or reproduction

Definitions

  • Patent Document 1 when an earphone is connected to a mobile terminal device, the correction parameter is measured, recorded, and automatically switched.
  • this technology is applied to a system that has a function that allows the user to change the settings related to audio signal processing to the user's favorite settings, when the settings are changed after the correction parameters are measured, the sound quality at the user's favorite settings is realized. Therefore, it is necessary to reset this setting in the same way as when measuring the correction parameter. Therefore, there is a problem that user convenience is significantly reduced.
  • the present disclosure provides an audio signal processing device and the like capable of executing audio signal processing with correction parameters obtained by measuring at a user's desired setting without impairing the convenience of the user.
  • the voice signal processing device in the present disclosure is a voice signal processing device that performs voice signal processing for a voice signal reproduced in a record player, and has a first input terminal that receives the voice signal from the record player and voice for the voice signal. Received from the first input terminal based on a memory that stores correction parameters for signal processing and characteristic information indicating the characteristics of the audio signal for measurement, and the correction parameters stored in the memory.
  • a signal processing circuit that performs audio signal processing on the audio signal and a microcomputer are provided, and the microcomputer reproduces a measurement audio signal recorded on a measurement record board by the record player.
  • the acoustic characteristics of the audio signal received by the first input terminal are measured from the record player, and the signal processing circuit is based on the comparison result between the measurement result and the characteristic information stored in the memory.
  • the correction parameter for the voice signal processing in the above is generated, and the setting information indicating the setting regarding the voice signal processing in the voice signal processing apparatus when the measurement is executed is associated with the generated correction parameter. Store in memory.
  • the audio signal processing method in the present disclosure is an audio signal processing method in an audio signal processing device that performs audio signal processing for an audio signal reproduced in a record player, and is for measurement recorded on a recording board for measurement.
  • the acoustic characteristics of the audio signal received from the record player are measured, and the measurement result and the measurement stored in the memory included in the audio signal processing device are stored.
  • the correction parameter for the audio signal processing is generated, and the setting related to the audio signal processing in the audio signal processing device when the measurement is executed is set.
  • the indicated setting information is stored in the memory in association with the generated correction parameter.
  • FIG. 1 is a schematic diagram showing a configuration of a record reproduction system according to an embodiment.
  • FIG. 2 is a block diagram showing a configuration of a record reproduction system according to an embodiment.
  • FIG. 3 is a flowchart showing the operation of the measurement process of the audio signal processing device according to the embodiment.
  • FIG. 4 is a diagram showing an example of a plurality of acoustic settings stored in the memory according to the embodiment.
  • FIG. 5 is a flowchart showing the operation of the sound setting application processing of the voice signal processing device according to the embodiment.
  • the voice signal processing device is a voice signal processing device that performs voice signal processing on a voice signal reproduced in a record player, and has a first input terminal that receives the voice signal from the record player.
  • the first is based on a memory that stores a correction parameter for processing a voice signal for a voice signal and characteristic information indicating a characteristic of the voice signal for measurement, and the correction parameter stored in the memory.
  • a signal processing circuit that performs audio signal processing on the audio signal received from the input terminal and a microcomputer are provided, and the microcomputer has a measurement audio signal recorded on a measurement record board as the record player.
  • the acoustic characteristics of the audio signal received by the first input terminal from the record player are measured, and the measurement result is compared with the characteristic information stored in the memory.
  • the audio signal processing apparatus stores the setting information indicating the setting related to the audio signal processing in the audio signal processing apparatus at the time of measurement in the memory in association with the generated correction parameter. Therefore, for example, when the user selects and sets the correction parameter and the setting information stored in association with the memory by operating the audio signal processing device, the setting information is linked to the setting of the correction parameter.
  • the setting of the audio signal processing device based on this can also be automatically performed. Therefore, it is possible to execute the audio signal processing by the correction parameter obtained by measuring at the user's desired setting without impairing the user's convenience, and it is possible to easily realize the desired sound quality.
  • the audio signal processing apparatus stores the setting information indicating the setting related to the audio signal processing in the audio signal processing apparatus at the time of measurement in the memory in association with the generated correction parameter. Then, when the voice signal processing device selects and sets the correction parameter and the setting information stored in association with the memory, the setting of the voice signal processing device based on the setting information is automatically performed in conjunction with the setting of the correction parameter. To do. Therefore, it is possible to execute the audio signal processing by the correction parameter obtained by measuring at the user's desired setting without impairing the user's convenience, and it is possible to easily realize the desired sound quality.
  • a second input terminal for receiving the input of the audio signal from the record player and a selector for selecting one input terminal for receiving the audio signal from the first input terminal and the second input terminal.
  • the setting information includes selector information indicating the one input terminal selected by the selector when the measurement is executed, and the microcomputer is indicated by the selector information included in the read setting information.
  • the one input terminal is selected by the selector, and the signal processing circuit uses the correction parameter read out together with the setting information for the audio signal received by the one input terminal selected by the selector.
  • the said voice signal processing may be performed.
  • the selector is made to select the input terminal indicated by the selector information.
  • the setting indicated by the read setting information is different from the setting in the current audio signal processing device, the setting is changed to the setting indicated by the setting information, so that the setting is based on the setting information in conjunction with the setting of the correction parameter.
  • the audio signal processing device can also be set automatically. Therefore, the convenience of the user is improved.
  • a selector for selecting a second input terminal for receiving the input of the voice signal from the record player and one input terminal for receiving the voice signal from the first input terminal and the second input terminal, and a message.
  • the setting information includes selector information indicating the one input terminal selected by the selector when the measurement is performed, and the microcomputer has read out the setting information.
  • the message may include a message prompting the user to input to switch the selector to the one input terminal.
  • the audio signal processing includes a first amplification process for the audio signal after analog-digital conversion
  • the setting information includes a first gain set in the first amplification process
  • the signal processing circuit includes the first gain.
  • the first amplification process may be executed with the first gain included in the read setting information.
  • the gain of the first amplification process is read out. Update to the first gain included in the information.
  • the setting indicated by the read setting information is different from the setting in the current audio signal processing device, the setting is changed to the setting indicated by the setting information, so that the setting is based on the setting information in conjunction with the setting of the correction parameter.
  • the audio signal processing device can also be set automatically. Therefore, the convenience of the user is improved.
  • an amplification processing circuit for executing a second amplification process for the voice signal received by the first input terminal and a reception unit for receiving input from the user are provided, and the setting information is transmitted by the reception unit.
  • the second microcomputer includes cartridge information indicating the type of the cartridge included in the record player, which is indicated by the received input, and the microcomputer corresponds to the type of the cartridge indicated by the cartridge information included in the read setting information.
  • the amplification processing circuit may be made to execute the second amplification processing by the gain.
  • the audio signal processing device 100 can also be set automatically. Therefore, the convenience of the user is improved.
  • the audio signal processing method in the present disclosure is an audio signal processing method in an audio signal processing device that performs audio signal processing for an audio signal reproduced in a record player, and is for measurement recorded on a recording board for measurement.
  • the acoustic characteristics of the audio signal received from the record player are measured, and the measurement result and the measurement stored in the memory included in the audio signal processing device are stored.
  • the correction parameter for the audio signal processing is generated, and the setting related to the audio signal processing in the audio signal processing device when the measurement is executed is set.
  • the indicated setting information is stored in the memory in association with the generated correction parameter.
  • the audio signal processing method stores the setting information indicating the setting related to the audio signal processing in the audio signal processing device at the time of measurement in the memory in association with the generated correction parameter. Therefore, for example, when the user selects and sets the correction parameter and the setting information stored in association with the memory by operating the audio signal processing device, the setting information is linked to the setting of the correction parameter.
  • the setting of the audio signal processing device based on this can also be automatically performed. Therefore, it is possible to execute the audio signal processing by the correction parameter obtained by measuring at the user's desired setting without impairing the user's convenience, and it is possible to easily realize the desired sound quality.
  • FIG. 1 is a schematic diagram showing a configuration of a record reproduction system according to an embodiment.
  • FIG. 2 is a block diagram showing a configuration of a record reproduction system according to an embodiment.
  • the record reproduction system 1 is a system for reproducing an analog record (hereinafter referred to as a record board 15), and is a record player 10, an audio signal processing device 100, and a speaker 107. To prepare for. Further, FIG. 1 shows a remote controller (remote controller) 120 that transmits a control signal for instructing control in the audio signal processing device 100 to the audio signal processing device 100.
  • a remote controller remote controller
  • the record player 10 is an audio device that reproduces a signal (for example, an audio signal) recorded on a record board 15, and includes a turntable 11, a cartridge 12, and a tone arm 13.
  • a signal for example, an audio signal
  • the turntable 11 is a rotary table on which the record board 15 is placed, and rotates (rotates) at a constant speed in a predetermined rotation direction when the record board 15 is played back.
  • the cartridge 12 is a pickup cartridge provided with a record needle.
  • the cartridge 12 is replaceably provided at the tip of the tone arm 13.
  • the record needle of the cartridge 12 traces the sound groove of the record board 15 placed on the rotating turntable 11 when the record board 15 is played back.
  • the cartridge 12 has various types such as a moving magnet type (MM type) and a moving coil type (MC type) depending on the difference in the structure.
  • the cartridge 12 acquires the signal recorded in the sound groove of the record board 15 as vibration via the record needle.
  • the cartridge 12 converts the vibration acquired through the record needle into an analog electric signal using the magnet or coil included in the cartridge 12, and outputs the electric signal obtained by the conversion as an audio signal.
  • the cartridge 12 has different acoustic characteristics and signal levels of the audio signal obtained depending on the type thereof.
  • the acoustic characteristics in the present disclosure include frequency characteristics and phase characteristics.
  • the tone arm 13 holds the cartridge 12 at the tip, appropriately controls the pressure applied between the record needle of the cartridge 12 and the record board 15 rotating on the turntable 11, and the sound groove of the rotating record board 15. Is controlled so that the record needle traces smoothly.
  • the transmission cables 21 and 22 are not limited to the RCA cable and the XLR cable exemplified above as long as they can transmit the audio signal to the audio signal processing device 100.
  • one of the first transmission cable 21 and the second transmission cable 22 may be another cable such as an AUX cable.
  • the first transmission cable 21 and the second transmission cable 22 are different types of cables from each other, and the transmission lines of these transmission cables 21 and 22 have different acoustic characteristics from each other. Therefore, the audio signals that have passed through these transmission lines have different acoustic characteristics from each other.
  • the audio signal processing device 100 is a device that performs audio signal processing on the audio signal reproduced by the record player 10. Specifically, the audio signal processing device 100 is a device that performs audio signal processing, such as adjusting the acoustic characteristics of the audio signal from the record player 10 and amplifying the audio signal. The audio signal processing device 100 outputs the audio signal after the audio signal processing to the speaker 107.
  • the audio signal processing device 100 may be, for example, an amplifier device.
  • the audio signal processing device 100 includes a signal processing circuit 101, a memory 102, a phono equalizer 103, an A / D converter 104, a D / A converter 105, an amplifier 106, and a microcomputer. It has 108, a display device 109, an input IF (Interface) 110, a selector 111, an input terminal 112, and a communication IF 113.
  • IF Interface
  • the input terminal 112 is a terminal that receives an audio signal from the record player 10.
  • the input terminal 112 has a first input terminal 112a and a second input terminal 112b.
  • the first input terminal 112a is, for example, a PHONO (RCA) terminal, to which the first transmission cable 21 is connected.
  • the second input terminal 112b is, for example, a PHONO (XLR) terminal, and the second transmission cable 22 is connected to the second input terminal 112b.
  • the first input terminal 112a and the second input terminal 112b are different types of terminals.
  • the first input terminal 112a may be any terminal corresponding to the first transmission cable 21, and is not limited to the PHONO (RCA) terminal.
  • the selector 111 selects one input terminal for receiving an audio signal from the first input terminal 112a and the second input terminal 112b.
  • the selector 111 selects either one of the first input terminal 112a and the second input terminal 112b, that is, one of the PHONO (RCA) terminal and the PHONO (XLR) terminal under the control of the microcomputer 108.
  • the analog audio signal received by the selected terminal is output to the phono equalizer 103.
  • the phono equalizer 103 is an equalizer that performs amplification processing of an analog audio signal received from the selector 111 and correction processing of the frequency amplitude characteristic of the audio signal. Specifically, the phono equalizer 103 amplifies the input analog audio signal with a set gain. This gain is a gain for amplifying an analog audio signal obtained from the record player 10, and is set by the microcomputer 108. Further, in order to reproduce the original sound recorded on the record board 15, the phono equalizer 103 makes a correction (reverse correction) with the characteristics opposite to the correction performed when the original sound is recorded on the record board. The phono equalizer 103 outputs the audio signal after the amplification processing and the correction processing to the A / D converter 104.
  • the A / D converter 104 is a converter that converts an analog audio signal received from the phono equalizer 103 into a digital audio signal.
  • the A / D converter 104 outputs the converted digital audio signal to the signal processing circuit 101.
  • the signal processing circuit 101 performs various audio signal processing on the digital audio signal received from the A / D converter 104 under the control of the microcomputer 108.
  • the audio signal processing includes adjustment processing of the acoustic characteristics of the digital audio signal and amplification processing of the audio signal.
  • the signal processing circuit 101 is, for example, a DSP (Digital Signal Processor).
  • the signal processing circuit 101 can analyze the acoustic characteristics of a digital audio signal.
  • the signal processing circuit 101 reads correction parameters for various audio signal processing from the memory 102 under the control of the microcomputer 108, and performs audio signal processing on the digital audio signal based on the read correction parameters.
  • the signal processing circuit 101 may read a correction parameter for adjusting the acoustic characteristic of the digital audio signal from the memory 102 and perform the adjustment processing based on the correction parameter. Further, the signal processing circuit 101 may perform amplification processing on the input digital audio signal with a set gain. This gain is a gain for amplifying a digital audio signal, and is set by the microcomputer 108.
  • the amplification process by the signal processing circuit 101 is an example of the first amplification process.
  • the gain used in the amplification processing by the signal processing circuit 101 is an example of the first gain. Further, the gain used in the amplification processing of the signal processing circuit 101 is different from the gain used in the amplification processing of the phono equalizer 103.
  • the signal processing circuit 101 outputs the digital audio signal after the audio signal processing to the D / A converter 105.
  • the D / A converter 105 is a converter that converts a digital audio signal whose acoustic characteristics have been adjusted by a signal processing circuit 101 into an analog audio signal.
  • the D / A converter 105 outputs the converted analog audio signal to the amplifier 106.
  • the amplifier 106 is an amplifier that amplifies the analog audio signal received from the D / A converter 105.
  • the amplifier 106 may be, for example, a class D amplifier or an amplifier of another class.
  • the analog audio signal amplified by the amplifier 106 is output to the speaker 107 via the speaker cables 31 and 32 connected to the audio signal processing device 100.
  • the memory 102 is composed of a RAM (RandomAccessMemory), a flash ROM (ReadOnlyMemory), etc., and stores various types of information. Specifically, the memory 102 stores a program executed by the microcomputer 108. Further, the memory 102 stores correction parameters for audio signal processing for the audio signal. Further, the memory 102 stores characteristic information indicating the characteristics of the audio signal for measurement. Further, the memory 102 stores setting information indicating a setting related to audio signal processing in the audio signal processing device 100.
  • the microcomputer 108 is a controller that exchanges control signals with the signal processing circuit 101, the memory 102, the phono equalizer 103, the display device 109, the input IF 110, the selector 111, and the communication IF 113.
  • the microcomputer 108 performs various processes by executing a program stored in the memory 102, and controls the operations of the signal processing circuit 101, the memory 102, the phono equalizer 103, the display device 109, the selector 111, and the communication IF 113.
  • the microcomputer 108 may execute the above-mentioned various processes according to the input signal (operation signal) received by the input IF 110 or the input signal (operation signal) from the remote controller 120 received by the communication IF 113.
  • the microcomputer 108 stores the setting information indicating the setting related to the audio signal processing in the audio signal processing device 100 in the memory 102.
  • the setting information stored in the memory 102 is, for example, the gain set in the amplification processing for the digital audio signal executed by the signal processing circuit 101, the selector information indicating the input terminal selected by the selector 111, and the connection.
  • the cartridge information may be, for example, an identifier indicated by an input received by the input IF 110 or the communication IF 113 described later.
  • this input may be an input obtained as a result of the input IF 110 accepting an operation performed by the user on the input IF 110, or may be transmitted from the remote controller 120 by an operation performed by the user on the remote controller 120. It may be an input obtained as a result of the communication IF 113 receiving the operated operation signal (input signal).
  • the identifier is, for example, an identifier indicating an MM type, an MC type, or the like.
  • the microcomputer 108 specifies the type of the cartridge according to the identifier specified by the input received by the input IF 110 or the communication IF 113, and stores the identifier indicating the specified cartridge type in the memory 102 as cartridge information.
  • the display device 109 is a device that displays information required by the user, such as setting items of the audio signal processing device 100 and the content being played.
  • the display device 109 is composed of a liquid crystal display, an organic EL (Electro Luminescence) display, an FL tube (fluorescent display tube), and the like.
  • the display device 109 is an example of a presentation unit.
  • the input IF 110 is an interface for the user to operate the audio signal processing device 100, and accepts operations from the user.
  • the input IF 110 may be, for example, various switches that accept operations from the user.
  • the input IF 110 may be a touch panel that is integrally configured with the display device 109 and accepts a touch operation from the user.
  • the input IF 110 and the communication IF 113 are examples of a reception unit that accepts input from the user.
  • the speaker 107 outputs voice based on an analog voice signal output from the voice signal processing device 100.
  • the user first sets a test record (characteristic analysis record) for calculating correction parameters in the turntable 11 of the record player 10.
  • the test record is a test for measuring the acoustic characteristics of the audio signal after being affected by the type of the cartridge 12 of the record player 10, the types of the transmission cables 21 and 22, the gain of the amplification processing by the signal processing circuit 101, and the like.
  • the signal is recorded.
  • the test record is a record board for measurement for measuring a change in acoustic characteristics caused in a voice signal for measurement.
  • the change in the acoustic characteristics to be measured is a change that occurs between the time when the audio signal for measurement is read by the cartridge 12 of the record player 10 and the time when the signal processing circuit 101 of the audio signal processing device 100 is reached.
  • the audio signal for measurement has the characteristics indicated by the characteristic information stored in advance in the memory 102.
  • the user operates the record player 10 to cause the record player 10 to play the test record.
  • the microcomputer 108 controls the signal processing circuit 101 according to the received operation signal, and measures the acoustic characteristics of the audio signal of the test record received by the input terminal 112 from the record player 10 (S12).
  • the execution start timing of step S12 may be before the timing at which the record player 10 starts playing the test record, and the measurement of the acoustic characteristics is executed while the record player 10 is playing the test record. It should be done.
  • the microcomputer 108 influences the entire path from the cartridge 12 of the record player 10 to the DSP 101 based on the comparison result between the measured acoustic characteristics (measurement results) and the characteristic information stored in the memory 102. Analyze the change in acoustic characteristics caused by receiving. That is, the microcomputer 108 calculates the difference between the measured acoustic characteristics and the characteristic information. Then, based on the calculated difference, the microcomputer 108 generates a correction parameter for correcting the characteristic of the input audio signal so as to approach the characteristic indicated by the characteristic information as a correction parameter used for the audio signal processing (. S13).
  • the audio signal processing using the correction parameters includes a calibration process for the audio signal processing device 100 to faithfully reproduce the sound recorded on the record board.
  • the audio signal processing device 100 may store a plurality of acoustic settings, that is, a plurality of sets when the correction parameter and the setting information are set in one set, in the memory 102.
  • a setting identifier for identifying the plurality of acoustic settings is assigned.
  • the setting identifier may be the name of the acoustic setting entered by the user or may be an index number.
  • the number of acoustic settings stored in the memory 102 may be one.
  • FIG. 5 is a flowchart showing the operation of the sound setting application processing of the voice signal processing device according to the embodiment.
  • the microcomputer 108 selects one acoustic setting from one or more acoustic settings stored in the memory 102 according to an operation signal indicating the selection and calling of the received acoustic setting, and is included in the selected acoustic setting.
  • the correction parameter is set in the audio signal processing device 100, and is set in each part of the audio signal processing device 100 according to the setting information (S22). That is, the microcomputer 108 reads the correction parameter stored in the memory 102 and the setting information stored in the memory 102 in association with the correction parameter, and sets each part of the voice signal processing device 100 according to the read setting information. And, the read correction parameter is set in the signal processing circuit 101.
  • the microcomputer 108 controls the audio signal processing device 100 with the settings indicated by the read setting information, and uses the read correction parameters.
  • the signal processing circuit 101 is made to execute the audio signal processing that has been performed.
  • the microcomputer 108 reads out one acoustic setting specified by the operation signal from one or more acoustic settings stored in the memory 102.
  • the microcomputer 108 sets the correction parameters included in the read acoustic settings in the signal processing circuit 101.
  • the signal processing circuit 101 uses the set correction parameters and has acoustic characteristics with respect to the input digital audio signal. Will be adjusted.
  • the microcomputer 108 reflects the setting information included in the read acoustic setting to the signal processing circuit 101, the phono equalizer 103, and the selector 111 of the audio signal processing device 100.
  • the microcomputer 108 sets the gain included in the read setting information in the signal processing circuit 101.
  • the signal processing circuit 101 performs amplification processing of the digital audio signal with the gain included in the setting information.
  • the microcomputer 108 causes the selector 111 to select one input terminal indicated by the selector information included in the read setting information. Specifically, when one input terminal indicated by the selector information included in the read setting information is the first input terminal 112a, the microcomputer 108 causes the selector 111 to select the first input terminal 112a. Further, when one input terminal indicated by the selector information included in the read setting information is the second input terminal 112b, the microcomputer 108 causes the selector 111 to select the second input terminal 112b. Therefore, when the audio signal processing device 100 subsequently receives an audio signal from the record player 10, the signal processing circuit 101 sets information for the audio signal received by one input terminal selected by the selector 111. The audio signal processing will be performed using the correction parameters read out together with.
  • the user applies the correction parameter to the digital audio signal in the signal processing circuit 101 by performing an operation of recalling the acoustic setting stored in the memory 102 during the measurement processing of the audio signal processing device 100, and at the same time, the user applies the correction parameter to the digital audio signal in the signal processing circuit 101.
  • the settings related to audio signal processing in the audio signal processing device 100 can be easily reproduced in the audio signal processing device 100.
  • the microcomputer 108 uses the gain of the amplification process of the signal processing circuit 101 set at that time and the cartridge information of the cartridge 12. And the gain of the amplification processing of the signal processing circuit 101 and the cartridge information of the cartridge 12 included in the acoustic setting to be applied may be compared. Then, as a result of comparison, if these setting information are different, the microcomputer 108 sets the setting information read from the memory 102, and if these setting information are the same, the setting information set at that time is not changed. You may.
  • the microcomputer 108 may control the display device 109 to display a message indicating that each item has been set for all the items of the setting information set in step S22. All the items of the setting information are connected to the gain set in the process of amplifying the digital audio signal executed by the signal processing circuit 101 and the selector information indicating the input terminal selected by the selector 111. This is information corresponding to three items of the cartridge information indicating the type of the cartridge 12 of the record player 10. The microcomputer 108 may control the display device 109 to display a message indicating that the settings have been made only for the items whose settings have been changed in step S22.
  • the microcomputer 108 is different from the one input terminal indicated by the selector information. After displaying a message indicating that the input terminal is selected by the selector 111 on the display device 109, the selector 111 may be made to switch the input terminal.
  • the audio signal processing device 100 of the present embodiment can store a plurality of acoustic settings. Therefore, for example, when the user replaces the cartridge 12 of the record player 10 with another type of cartridge, or when the record player 10 is replaced, the configuration of the record reproduction system differs before and after the replacement. For example, since the combination of the N (N is a natural number) type cartridge and the M (M is a natural number) type record player is N ⁇ M, a record reproduction system configuration of N ⁇ M is generated. Therefore, appropriate N ⁇ M acoustic settings are required for each of the configurations of the record reproduction system in N ⁇ M ways, and the audio signal processing device 100 of the present embodiment has N ⁇ M acoustic settings in the memory 102. Can be memorized in. Therefore, the user can select and call the acoustic setting according to the type of the cartridge 12 and the type of the record player 10.
  • the audio signal processing device 100 may have a function of turning off the setting by the stored acoustic setting.
  • the microcomputer 108 may not apply the stored acoustic setting when the setting by the acoustic setting is set to OFF. At this time, the microcomputer 108 may not apply one of the correction parameters and the setting information among the acoustic settings stored in the memory 102, or may not apply both of them.
  • the audio signal processing device 100 may accept changes in the setting information even when the acoustic settings stored in the memory 102 are applied to the audio signal processing device 100. If the change in the setting information is accepted, the correction parameter in use will not be appropriate for the changed setting information. Therefore, when the change of the setting of any of the items included in the setting information is accepted, the microcomputer 108 controls to turn off the application of the correction parameter of the audio signal processing in the signal processing circuit 101. May be good. At this time, the microcomputer 108 may be controlled to display a message notifying the user that the correction parameter is turned off on the display device 109, or the message is registered in advance by controlling the communication IF 113. The user's mobile terminal may be notified.
  • the sound setting is switched according to the selector 111 setting (input terminal) selected by the user.
  • the microcomputer 108 acquires an input indicating the setting of the selector 111 from the input IF 110 or the communication IF 113, it is the same as the setting of the input selector 111 among the plurality of acoustic settings stored in the memory 102. Search for the one that contains the settings.
  • the microcomputer 108 when the microcomputer 108 accepts the change of the setting (input terminal) of the selector 111, the microcomputer 108 searches the memory 102 for the acoustic setting including the selector information indicating the same input terminal as the changed input terminal. When one corresponding acoustic setting is found in step S22, the microcomputer 108 sets the acoustic setting in the audio signal processing device 100. When a plurality of applicable acoustic settings are found, the microcomputer 108 asks the user which acoustic setting to select from the found plurality of acoustic settings, and causes the user to select the audio setting by using the input IF 110 or the remote controller 120. You may do so.
  • the audio signal processing device 100 is an audio signal processing device 100 that performs audio signal processing on the audio signal reproduced by the record player 10, and is a first input terminal 112a and a memory 102. And a signal processing circuit 101 and a microcomputer 108.
  • the first input terminal 112a receives an audio signal from the record player 10.
  • the memory 102 stores a correction parameter for processing an audio signal for an audio signal and characteristic information indicating the characteristics of the audio signal for measurement.
  • the signal processing circuit 101 performs audio signal processing on the audio signal received from the first input terminal 112a based on the correction parameter stored in the memory 102.
  • the microcomputer 108 measures the acoustic characteristics of the audio signal received from the record player 10 by the first input terminal 112a when the audio signal for measurement recorded on the record board for measurement is reproduced by the record player 10. do.
  • the microcomputer 108 generates a correction parameter for audio signal processing in the signal processing circuit 101 based on the comparison result between the measurement result and the characteristic information stored in the memory 102.
  • the microcomputer 108 stores the setting information indicating the setting related to the audio signal processing in the audio signal processing device 100 when the measurement is executed in the memory 102 in association with the generated correction parameter.
  • the microcomputer 108 reads and reads the correction parameter stored in the memory 102 and the setting information stored in the memory 102 in association with the correction parameter.
  • the voice signal processing device 100 is controlled by the setting indicated by the information, and the signal processing circuit 101 is made to execute the voice signal processing using the read correction parameters.
  • the audio signal processing device 100 further includes a second input terminal 112b and a selector 111.
  • the second input terminal 112b receives an audio signal input from the record player 10.
  • the selector 111 selects one input terminal for receiving an audio signal from the first input terminal 112a and the second input terminal 112b.
  • the setting information includes selector information indicating one input terminal selected by the selector 111 when the measurement is performed.
  • the microcomputer 108 causes the selector 111 to select one input terminal indicated by the selector information included in the read setting information.
  • the signal processing circuit 101 performs audio signal processing using the correction parameters read together with the setting information for the audio signal received by one input terminal selected by the selector 111.
  • the input terminal indicated by the selector 111 is selected by the selector 111.
  • the setting indicated by the read setting information is different from the setting in the current audio signal processing device 100, the setting is changed to the setting indicated by the setting information, so that the setting information is linked with the setting of the correction parameter. Based on this, the audio signal processing device 100 can also be set automatically. Therefore, the convenience of the user is improved.
  • the audio signal processing device 100 further includes a phono equalizer 103 and an input IF 110 or a communication IF 113.
  • the phono equalizer 103 executes a second amplification process for an analog audio signal received by the first input terminal 112a or the second input terminal 112b.
  • the input IF 110 or the communication IF 113 accepts input from the user.
  • the setting information includes cartridge information indicating the type of the cartridge 12 included in the record player 10, which is indicated by the input received by the input IF 110 or the communication IF 113.
  • the microcomputer 108 causes the phono equalizer 103 to execute the second amplification process with the second gain corresponding to the type of the cartridge 12 indicated by the cartridge information included in the read setting information.
  • the type of the cartridge indicated by the cartridge information is audio.
  • the setting of the signal processing device 100 is updated.
  • the microcomputer 108 updates the second gain in the second amplification process of the phono equalizer 103 according to the updated setting.
  • the audio signal processing device 100 can also be set automatically. Therefore, the convenience of the user is improved.
  • the audio signal processing device 100 further includes a display device 109 for displaying a message.
  • a display device 109 for displaying a message.
  • the microcomputer 108 when one input terminal indicated by the selector information included in the read setting information and the input terminal selected by the selector 111 are different, an input terminal different from the one input terminal is selected by the selector 111. A message indicating that the message is displayed is displayed on the display device 109. Therefore, it is possible to notify the user that an input terminal different from one input terminal is selected by the selector 111.
  • the signal processing circuit 101 and the microcomputer 108 are divided into roles, but the microcomputer 108 may perform a part or all of the processing that the signal processing circuit 101 is supposed to perform, or the microcomputer 108.
  • the signal processing circuit 101 may perform a part or all of the processing that is supposed to be performed by the signal processing circuit 101.
  • a test signal may be input from a mobile terminal device different from the record player 10. That is, the mobile terminal device inputs a test signal to the input terminal 112 of the audio signal processing device 100.
  • the gain in the signal processing circuit 101, the type of the cartridge 12, and the input terminal selected by the selector 111 have been described as examples of the setting items automatically set when the correction parameter is applied.
  • a setting other than the above may be used.
  • this amplification process may be performed by another component such as the phono equalizer 103.
  • the microcomputer 108 sets the gain for the other components, and the other components perform the amplification process with the set gain.
  • the microcomputer 108 may correct or set the parameters of other components of the audio signal processing device 100 based on the information of the type of the cartridge 12.
  • the microcomputer 108 may correct the gain of the amplification processing of the digital audio signal in the signal processing circuit 101 and the parameters in the audio signal processing in the signal processing circuit 101 based on the information of the type of the cartridge 12.
  • the selector information indicates 1.
  • a message indicating that an input terminal different from one input terminal is selected by the selector 111 is displayed on the display device 109, and then the selector 111 is made to switch the input terminal, but the present invention is not limited to this. In this case, it is not necessary to cause the selector 111 to switch the input terminal.
  • this message may further include a message prompting the user to input the setting of the selector 111 to one input terminal indicated by the selector information from the input IF 110 or the remote controller 120.
  • the audio signal processing device 100 can store a plurality of correction parameters and can turn off the correction parameters, but only one correction parameter may be stored. Further, the audio signal processing device 100 may not have a function of turning off the correction parameter.
  • the correction parameter is not suitable for the changed setting in the display device 109. Is displayed and the application of the correction parameter is turned off. However, the display device 109 may be displayed with a message informing that the setting cannot be changed and the application of the correction parameter may be continued.
  • the microcomputer 108 displays a message on the display device 109 when notifying the user, but the present invention is not limited to this.
  • the microcomputer 108 may notify the message to the user's mobile terminal registered in advance. That is, the display device 109 and the communication IF 113 are examples of presentation units that present messages.
  • the selector 111 stores the application state of the correction parameter for each selectable input terminal, and when the selector 111 is switched, it automatically switches to the stored correction parameter, but without switching. You may.
  • an unbalanced signal (RCA) and a balanced signal (XLR) are output from the record player 10, and either of them is selected by the selector 111 of the audio signal processing device 100.
  • the configuration to be performed is shown. It shows a configuration in which two PHONO inputs are selected by the selector 111, and both RCA and XLR are connected from one record player 10, or RCA and XLR are connected from two record players, respectively. It can be applied to various variations and does not limit the connection method.
  • the present disclosure can be applied to an audio signal processing device or the like capable of executing audio signal processing according to the characteristics of a record reproduction system.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
PCT/JP2021/025732 2020-08-05 2021-07-08 音声信号処理装置、音声信号処理方法、及び、プログラム Ceased WO2022030172A1 (ja)

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JP2022541170A JP7373760B2 (ja) 2020-08-05 2021-07-08 音声信号処理装置、音声信号処理方法、及び、プログラム
EP21853356.0A EP4195696A4 (en) 2020-08-05 2021-07-08 Voice signal processing device, voice signal processing method, and program
US17/912,740 US12046258B2 (en) 2020-08-05 2021-07-08 Audio signal processing device, audio signal processing method, and recording medium

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306113A (en) * 1979-11-23 1981-12-15 Morton Roger R A Method and equalization of home audio systems
JP2010226329A (ja) 2009-03-23 2010-10-07 Sony Ericsson Mobile Communications Ab 携帯端末装置

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Publication number Priority date Publication date Assignee Title
JP7254244B2 (ja) * 2020-05-11 2023-04-07 パナソニックＩｐマネジメント株式会社 測定装置、測定方法及びプログラム
EP4195696A4 (en) * 2020-08-05 2024-02-21 Panasonic Intellectual Property Management Co., Ltd. Voice signal processing device, voice signal processing method, and program

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306113A (en) * 1979-11-23 1981-12-15 Morton Roger R A Method and equalization of home audio systems
JP2010226329A (ja) 2009-03-23 2010-10-07 Sony Ericsson Mobile Communications Ab 携帯端末装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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US20230144494A1 (en) 2023-05-11
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EP4195696A4 (en) 2024-02-21
US12046258B2 (en) 2024-07-23

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