TW200721876A - Sensor-free bass compensation system - Google Patents

Sensor-free bass compensation system

Info

Publication number
TW200721876A
TW200721876A TW094140256A TW94140256A TW200721876A TW 200721876 A TW200721876 A TW 200721876A TW 094140256 A TW094140256 A TW 094140256A TW 94140256 A TW94140256 A TW 94140256A TW 200721876 A TW200721876 A TW 200721876A
Authority
TW
Taiwan
Prior art keywords
control device
sensor
acoustic source
velocity estimation
volume velocity
Prior art date
Application number
TW094140256A
Other languages
Chinese (zh)
Other versions
TWI295898B (en
Inventor
Ming-Sian R Bai
zhi-zhong Li
Jian-Liang Lin
Original Assignee
Univ Nat Chiao Tung
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 by Univ Nat Chiao Tung filed Critical Univ Nat Chiao Tung
Priority to TW094140256A priority Critical patent/TW200721876A/en
Priority to JP2006117743A priority patent/JP4419024B2/en
Publication of TW200721876A publication Critical patent/TW200721876A/en
Application granted granted Critical
Publication of TWI295898B publication Critical patent/TWI295898B/zh

Links

Landscapes

  • Circuit For Audible Band Transducer (AREA)

Abstract

A sensor-free bass compensation system includes a bi-layer hybrid control architecture having a feed-forward control device and a feedback control device as well as a volume velocity estimation device of acoustic source. The volume velocity estimation device of acoustic source employs a dynamic equation and the linear quadratic Gaussian theorem to obtain a sensor-free volume velocity estimation device of acoustic source. The feed-forward control device is mounted on a digital signal processor, and a feedback control device is designed with the quantitative feedback technique and is mounted on an analog circuit for enhancing the robust stability while a speaker is operating. Besides, the system of the present invention possesses the capability of automatic modeling and synthetic filter, thereby achieving the reduction of operating frequency of speaker, correct low-frequency loudness in different room and the suppression of parametric drift arising from long working hours.
TW094140256A 2005-11-16 2005-11-16 Sensor-free bass compensation system TW200721876A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW094140256A TW200721876A (en) 2005-11-16 2005-11-16 Sensor-free bass compensation system
JP2006117743A JP4419024B2 (en) 2005-11-16 2006-04-21 Low temperature compensation system without sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW094140256A TW200721876A (en) 2005-11-16 2005-11-16 Sensor-free bass compensation system

Publications (2)

Publication Number Publication Date
TW200721876A true TW200721876A (en) 2007-06-01
TWI295898B TWI295898B (en) 2008-04-11

Family

ID=38205360

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094140256A TW200721876A (en) 2005-11-16 2005-11-16 Sensor-free bass compensation system

Country Status (2)

Country Link
JP (1) JP4419024B2 (en)
TW (1) TW200721876A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108347670A (en) * 2017-01-23 2018-07-31 芯籁半导体股份有限公司 Signal processing method and signal processing system
TWI633795B (en) * 2017-01-23 2018-08-21 芯籟半導體股份有限公司 A signal processing system and a method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108347670A (en) * 2017-01-23 2018-07-31 芯籁半导体股份有限公司 Signal processing method and signal processing system
TWI633795B (en) * 2017-01-23 2018-08-21 芯籟半導體股份有限公司 A signal processing system and a method
CN108347670B (en) * 2017-01-23 2020-03-20 芯籁半导体股份有限公司 Signal processing method and signal processing system

Also Published As

Publication number Publication date
TWI295898B (en) 2008-04-11
JP4419024B2 (en) 2010-02-24
JP2007143102A (en) 2007-06-07

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