TW364947B - Noise control system - Google Patents

Noise control system

Info

Publication number
TW364947B
TW364947B TW088100004A TW88100004A TW364947B TW 364947 B TW364947 B TW 364947B TW 088100004 A TW088100004 A TW 088100004A TW 88100004 A TW88100004 A TW 88100004A TW 364947 B TW364947 B TW 364947B
Authority
TW
Taiwan
Prior art keywords
transducer
acoustic
control system
ducts
active noise
Prior art date
Application number
TW088100004A
Other languages
Chinese (zh)
Inventor
Jwu-Sheng Hu
Original Assignee
Jwu-Sheng Hu
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 Jwu-Sheng Hu filed Critical Jwu-Sheng Hu
Priority to TW088100004A priority Critical patent/TW364947B/en
Application granted granted Critical
Publication of TW364947B publication Critical patent/TW364947B/en

Links

Landscapes

  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

A kind of active noise control system for broadband noise which applies to the ducts including both the short duct and long duct. The principle is to arrange a set of microphones at suitable positions for special combination and treatment on the acoustic signals and be separated with the acoustic states, including the howling, and the characteristic of transducer. Employing the online parameter adaptation to calculate the dynamic compensation value of transducer and output a suitable control signal to the transducer for the active noise elimination. The invention need not to compensate the acoustic state of ducts so greatly reduce the number of parameters and reduce the calculation and increase the convergence speed. And, the method is not related with the boundary conditions so it is rather effective.
TW088100004A 1999-01-04 1999-01-04 Noise control system TW364947B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW088100004A TW364947B (en) 1999-01-04 1999-01-04 Noise control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW088100004A TW364947B (en) 1999-01-04 1999-01-04 Noise control system

Publications (1)

Publication Number Publication Date
TW364947B true TW364947B (en) 1999-07-21

Family

ID=57941003

Family Applications (1)

Application Number Title Priority Date Filing Date
TW088100004A TW364947B (en) 1999-01-04 1999-01-04 Noise control system

Country Status (1)

Country Link
TW (1) TW364947B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7889872B2 (en) 2005-11-29 2011-02-15 National Chiao Tung University Device and method for integrating sound effect processing and active noise control
TWI423688B (en) * 2010-04-14 2014-01-11 Alcor Micro Corp Voice sensor with electromagnetic wave receiver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7889872B2 (en) 2005-11-29 2011-02-15 National Chiao Tung University Device and method for integrating sound effect processing and active noise control
TWI423688B (en) * 2010-04-14 2014-01-11 Alcor Micro Corp Voice sensor with electromagnetic wave receiver

Similar Documents

Publication Publication Date Title
US8675885B2 (en) Adjusting noise reduction in headphones
US6078672A (en) Adaptive personal active noise system
US5481615A (en) Audio reproduction system
US20190037321A1 (en) Hearing aid device and method for feedback reduction
US20050117754A1 (en) Active noise cancellation helmet, motor vehicle system including the active noise cancellation helmet, and method of canceling noise in helmet
DE69116948T2 (en) Method and device for noise cancellation in headphones
EP0840285A3 (en) Active noise conditioning system
AU5806400A (en) Feedback cancellation with low frequency input
DK1198974T3 (en) Hearing aid with adaptive adaptation of the microphones
CA2076390A1 (en) Noise reducing system
EP1545152A3 (en) Feedback cancellation apparatus and methods
JPH07325588A (en) Muffler
CN106254989A (en) A kind of noise cancelling headphone and noise-reduction method thereof
CN1886782A (en) Hearing aid with active noise canceling
JPH02254898A (en) Noise decreasing device
WO2002089521A3 (en) Microphone-tailored equalizing system
TW364947B (en) Noise control system
JPH0863174A (en) Noise control device for sleeping
JPH03276998A (en) Environmental sound controller
Kuo et al. Adaptive feedback active noise control
JP3732681B2 (en) Audio sound canceling device
JP2887030B2 (en) Electronic silencing system
JPS61194913A (en) Noise canceller
KR100890132B1 (en) An engine double insulation structure for reducing heater noise
Vaishya Unified strategy for active control of air induction sound