TW200721876A - Sensor-free bass compensation system - Google Patents
Sensor-free bass compensation systemInfo
- 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
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.
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)
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 |
-
2005
- 2005-11-16 TW TW094140256A patent/TW200721876A/en unknown
-
2006
- 2006-04-21 JP JP2006117743A patent/JP4419024B2/en not_active Expired - Fee Related
Cited By (3)
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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