WO2019069466A1 - スピーカ駆動装置、スピーカ装置およびプログラム - Google Patents

スピーカ駆動装置、スピーカ装置およびプログラム Download PDF

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Publication number
WO2019069466A1
WO2019069466A1 PCT/JP2017/036544 JP2017036544W WO2019069466A1 WO 2019069466 A1 WO2019069466 A1 WO 2019069466A1 JP 2017036544 W JP2017036544 W JP 2017036544W WO 2019069466 A1 WO2019069466 A1 WO 2019069466A1
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WO
WIPO (PCT)
Prior art keywords
unit
speaker
signal
parameter
drive
Prior art date
Application number
PCT/JP2017/036544
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English (en)
French (fr)
Japanese (ja)
Inventor
彰 安田
淳一 岡村
岩村　宏
Original Assignee
株式会社 Ｔｒｉｇｅｎｃｅ Ｓｅｍｉｃｏｎｄｕｃｔｏｒ
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.)
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Publication date
Application filed by 株式会社 Ｔｒｉｇｅｎｃｅ Ｓｅｍｉｃｏｎｄｕｃｔｏｒ filed Critical 株式会社 Ｔｒｉｇｅｎｃｅ Ｓｅｍｉｃｏｎｄｕｃｔｏｒ
Priority to JP2018537685A priority Critical patent/JPWO2019069466A1/ja
Priority to KR1020197011140A priority patent/KR20190052099A/ko
Priority to PCT/JP2017/036544 priority patent/WO2019069466A1/ja
Priority to CN201780065343.8A priority patent/CN109906617A/zh
Publication of WO2019069466A1 publication Critical patent/WO2019069466A1/ja

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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
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response

Definitions

  • the apparatus may further include a setting unit configured to set the first parameter.
  • a speaker unit having a characteristic different from the characteristic of the speaker unit 80 (hereinafter sometimes referred to as a target speaker unit) It is also possible to output a pseudo-reproduced sound.
  • the setting value 130s and the control amount in the amplitude control unit 135 are sequentially changed by the changing unit 140. Therefore, it can be said that the structure of the target speaker unit to be calculated, that is, the response characteristic of the target speaker unit is changed as time progresses.
  • FIG. 3 is a diagram showing changes in frequency response and step response when Rms (mechanical resistance) is changed.
  • FIG. 3 shows changes in frequency response and step response when the value of Rms is a predetermined reference value, 0.2 times the reference value, and 5 times the reference value.
  • Rms mechanical resistance
  • the frequency response especially the strength of the resonant frequency
  • the step response can be changed.
  • FIG. 3 for example, if Rms is increased, the intensity at the resonance frequency (amplitude of the diaphragm) can be suppressed, and the intensity swings with little change in the rise of the vibration (rise of the sound). The time to hold back can be shortened.
  • FIG. 7 is a diagram for explaining a specific example of parameters defining an equivalent circuit of the speaker unit arranged in the bass reflex type enclosure (Vented Box). The contents of each parameter shown in FIG. 7 are also shown in FIG. The parameters shown in FIG. 2 are not shown in this figure. In this example, the properties of the duct section are added.
  • Such equivalent circuits are exemplified in the following documents. Wolfgang Klippel, "Direct Feedback Linearization of Nonlinear Loudspeaker Systems", JAES Volume 46 Issue 6 pp. 499-507; June 1998
  • the amplitude control unit 135 controls the amplitude before the first operation unit 130 outputs the first operation signal Sc1. That is, amplitude control is performed on a signal obtained by adding the response characteristic by the arithmetic processing in the first arithmetic unit 130.
  • the control amount of the amplitude is changed by the changing unit 140. As described later, the control amount of the amplitude is determined by the changing unit 140 based on the intensity of the second operation signal Sc2 (corresponding to the displacement amount in the case of the position of the diaphragm), as described later.
  • FIG. 8 is a diagram for explaining a template table in the first embodiment.
  • the template table includes a setting reference value 130sb (combination of first parameters) as a reference of the setting value 130s used in the first calculation unit 130, and a setting value 153s (combination of second parameters) used in the second calculation unit 153. It prescribes.
  • the template “AAA” defines a combination of the parameter A “a1”, the parameter B “b1”,.
  • “AAA” is information corresponding to, for example, the model number of the speaker unit.
  • the combination of parameters defined by the template “AAA” is the value of each parameter corresponding to the speaker unit of the model number.
  • the speaker unit 80 is connected to the speaker drive device 10D.
  • the speaker unit 80 may not be connected as long as it is stored in the storage device 50.
  • the acquisition unit 110 may acquire the audio signal Sin from the input / output terminal 11, or may acquire the audio signal Sin generated by the control unit 100.
  • the output unit 155 may output the drive signal Sd to the input / output terminal 11 instead of the speaker unit 80.
  • the set value 153s set in the second calculation unit 153 may be automatically changed.
  • the second parameter after the change may be set to a value corresponding to the headphones.
  • the second parameter may not necessarily be a value corresponding to the headphones connected to the input / output terminal 11.
  • the input and output terminals 11 share the input and output terminals, but may be separately provided.
  • the setting value 153s may be changed based on the identification information.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
PCT/JP2017/036544 2017-10-06 2017-10-06 スピーカ駆動装置、スピーカ装置およびプログラム WO2019069466A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2018537685A JPWO2019069466A1 (ja) 2017-10-06 2017-10-06 スピーカ駆動装置、スピーカ装置およびプログラム
KR1020197011140A KR20190052099A (ko) 2017-10-06 2017-10-06 스피커 구동장치, 스피커 장치 및 프로그램
PCT/JP2017/036544 WO2019069466A1 (ja) 2017-10-06 2017-10-06 スピーカ駆動装置、スピーカ装置およびプログラム
CN201780065343.8A CN109906617A (zh) 2017-10-06 2017-10-06 扬声器驱动装置、扬声器装置和程序

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/036544 WO2019069466A1 (ja) 2017-10-06 2017-10-06 スピーカ駆動装置、スピーカ装置およびプログラム

Publications (1)

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WO2019069466A1 true WO2019069466A1 (ja) 2019-04-11

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JP (1) JPWO2019069466A1 (zh)
KR (1) KR20190052099A (zh)
CN (1) CN109906617A (zh)
WO (1) WO2019069466A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111565353B (zh) * 2020-03-10 2021-05-28 南京大学 一种具有自适应多步长的扬声器非线性参数辨识方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010050875A (ja) 2008-08-25 2010-03-04 Sony Corp イコライザ装置、周波数特性付加方法、周波数特性付加プログラムおよび音響再生装置
JP4778001B2 (ja) * 2004-12-21 2011-09-21 株式会社エヌ・ティ・ティ・ドコモ フレームベースのスピーカイコライゼーションのための方法及び装置
JP4805749B2 (ja) * 2005-07-29 2011-11-02 パナソニック株式会社 スピーカ装置
US8306244B2 (en) 2008-06-16 2012-11-06 Trigence Semiconductor, Inc. Digital speaker driving apparatus
US8423165B2 (en) 2006-05-21 2013-04-16 Trigence Semiconductor, Inc. Digital/analogue conversion apparatus
US9219960B2 (en) 2009-12-16 2015-12-22 Trigence Semiconductor Inc. Acoustic playback system
US9300310B2 (en) 2009-12-09 2016-03-29 Trigence Semiconductor, Inc. Selection device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4778001B2 (ja) * 2004-12-21 2011-09-21 株式会社エヌ・ティ・ティ・ドコモ フレームベースのスピーカイコライゼーションのための方法及び装置
JP4805749B2 (ja) * 2005-07-29 2011-11-02 パナソニック株式会社 スピーカ装置
US8423165B2 (en) 2006-05-21 2013-04-16 Trigence Semiconductor, Inc. Digital/analogue conversion apparatus
US8306244B2 (en) 2008-06-16 2012-11-06 Trigence Semiconductor, Inc. Digital speaker driving apparatus
JP2010050875A (ja) 2008-08-25 2010-03-04 Sony Corp イコライザ装置、周波数特性付加方法、周波数特性付加プログラムおよび音響再生装置
US9300310B2 (en) 2009-12-09 2016-03-29 Trigence Semiconductor, Inc. Selection device
US9219960B2 (en) 2009-12-16 2015-12-22 Trigence Semiconductor Inc. Acoustic playback system

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
GIANNOULISDIMITRIOSMICHAEL MASSBERGJOSHUA D. REISS: "Digital Dynamic Range Compressor Design? A Tutorial And Analysis", JOURNAL OF AUDIO ENGINEERING SOCIETY, vol. 60, no. 6, pages 399 - 408
KARSTEN OYEN: "Master of Science in Electronics", August 2007, NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATIONS, article "Compensation of Loudspeaker Nonlinearities - DSP implementation", pages: 21 - 27
WOLFGANG KLIPPEL: "Direct Feedback Linearization of Nonlinear Loudspeaker Systems", JAES, vol. 46, no. 6, June 1998 (1998-06-01), pages 499 - 507, XP000771611

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Publication number Publication date
JPWO2019069466A1 (ja) 2020-09-10
KR20190052099A (ko) 2019-05-15
CN109906617A (zh) 2019-06-18

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