JPWO2021131908A1 - - Google Patents

Info

Publication number
JPWO2021131908A1
JPWO2021131908A1 JP2021567306A JP2021567306A JPWO2021131908A1 JP WO2021131908 A1 JPWO2021131908 A1 JP WO2021131908A1 JP 2021567306 A JP2021567306 A JP 2021567306A JP 2021567306 A JP2021567306 A JP 2021567306A JP WO2021131908 A1 JPWO2021131908 A1 JP WO2021131908A1
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2021567306A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of JPWO2021131908A1 publication Critical patent/JPWO2021131908A1/ja
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • H04R3/04Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/08Clock generators with changeable or programmable clock frequency
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16Sound input; Sound output
    • G06F3/165Management of the audio stream, e.g. setting of volume, audio stream path
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00Acoustics not otherwise provided for
    • G10K15/02Synthesis of acoustic waves
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/02Manually-operated control
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66Digital/analogue converters
    • H03M1/68Digital/analogue converters with conversions of different sensitivity, i.e. one conversion relating to the more significant digital bits and another conversion to the less significant bits
    • H03M1/687Segmented, i.e. the more significant bit converter being of the unary decoded type and the less significant bit converter being of the binary weighted type
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66Digital/analogue converters
    • H03M1/74Simultaneous conversion
    • H03M1/742Simultaneous conversion using current sources as quantisation value generators
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00Signal processing covered by H04R, not provided for in its groups
    • H04R2430/01Aspects of volume control, not necessarily automatic, in sound systems
JP2021567306A 2019-12-27 2020-12-15 Pending JPWO2021131908A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019239618 2019-12-27
PCT/JP2020/046771 WO2021131908A1 (ja) 2019-12-27 2020-12-15 オーディオ回路、dsd信号の再生方法

Publications (1)

Publication Number Publication Date
JPWO2021131908A1 true JPWO2021131908A1 (ja) 2021-07-01

Family

ID=76574764

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021567306A Pending JPWO2021131908A1 (ja) 2019-12-27 2020-12-15

Country Status (4)

Country Link
US (1) US20220329942A1 (ja)
JP (1) JPWO2021131908A1 (ja)
CN (1) CN114766051A (ja)
WO (1) WO2021131908A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116913294B (zh) * 2023-09-11 2023-12-19 归芯科技(深圳)有限公司 Pcm信号的处理方法、装置、数字音频系统及电子设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008249973A (ja) * 2007-03-30 2008-10-16 Sony Corp ボリューム制御装置、ボリューム制御方法及びそのプログラム
US9875750B2 (en) * 2016-06-24 2018-01-23 Cirrus Logic, Inc. Digital volume control
US10424311B2 (en) * 2017-01-30 2019-09-24 Cirrus Logic, Inc. Auto-mute audio processing
EP3471271A1 (en) * 2017-10-16 2019-04-17 Acoustical Beauty Improved convolutions of digital signals using a bit requirement optimization of a target digital signal

Also Published As

Publication number Publication date
US20220329942A1 (en) 2022-10-13
CN114766051A (zh) 2022-07-19
WO2021131908A1 (ja) 2021-07-01

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Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20231116