TWI268477B - Microphone array system for PC which achieves the advantage of low cost, convenience, expansibility and high flexibility - Google Patents

Microphone array system for PC which achieves the advantage of low cost, convenience, expansibility and high flexibility

Info

Publication number
TWI268477B
TWI268477B TW093136406A TW93136406A TWI268477B TW I268477 B TWI268477 B TW I268477B TW 093136406 A TW093136406 A TW 093136406A TW 93136406 A TW93136406 A TW 93136406A TW I268477 B TWI268477 B TW I268477B
Authority
TW
Taiwan
Prior art keywords
speech
sound signal
expansibility
convenience
advantage
Prior art date
Application number
TW093136406A
Other languages
Chinese (zh)
Other versions
TW200617883A (en
Inventor
Jwu-Sheng Hu
Jie-Cheng Zheng
Chuang-Min Kang
Wei-Han Liu
Original Assignee
Univ National 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 National Chiao Tung filed Critical Univ National Chiao Tung
Priority to TW093136406A priority Critical patent/TWI268477B/en
Publication of TW200617883A publication Critical patent/TW200617883A/en
Application granted granted Critical
Publication of TWI268477B publication Critical patent/TWI268477B/en

Links

Landscapes

  • Circuit For Audible Band Transducer (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

This invention relates to a microphone array system for PC. It employs a universal serial bus (USB) data acquisition system to amplify an analog sound signal, pass through a band-pass filter, and lastly converts the data into a digital sound signal. Further, it utilizes a speech signal enhancement system to suppress noise in the acquired digital sound signal, and purifies the digital sound signal into a speech signal. The entire system achieves the advantage of low cost, convenience, expansibility, and high flexibility. It eliminates noise other than speech under an environment with noise and echo. It automatically adjusts parameters in accordance with variation of speech orientation, environment and equipment. Eventually, it attains an automatic and highly efficient speech purification effect.
TW093136406A 2004-11-26 2004-11-26 Microphone array system for PC which achieves the advantage of low cost, convenience, expansibility and high flexibility TWI268477B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW093136406A TWI268477B (en) 2004-11-26 2004-11-26 Microphone array system for PC which achieves the advantage of low cost, convenience, expansibility and high flexibility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW093136406A TWI268477B (en) 2004-11-26 2004-11-26 Microphone array system for PC which achieves the advantage of low cost, convenience, expansibility and high flexibility

Publications (2)

Publication Number Publication Date
TW200617883A TW200617883A (en) 2006-06-01
TWI268477B true TWI268477B (en) 2006-12-11

Family

ID=57808175

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093136406A TWI268477B (en) 2004-11-26 2004-11-26 Microphone array system for PC which achieves the advantage of low cost, convenience, expansibility and high flexibility

Country Status (1)

Country Link
TW (1) TWI268477B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8898056B2 (en) 2006-03-01 2014-11-25 Qualcomm Incorporated System and method for generating a separated signal by reordering frequency components

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8898056B2 (en) 2006-03-01 2014-11-25 Qualcomm Incorporated System and method for generating a separated signal by reordering frequency components

Also Published As

Publication number Publication date
TW200617883A (en) 2006-06-01

Similar Documents

Publication Publication Date Title
EP1921601A3 (en) Digital filter circuit, digital filter program and noise canceling system
EP1921603A3 (en) Filter circuit for noise cancellation, noise reduction signal production method and noise canceling system
EP1617419A3 (en) Signal processing apparatus and method for reducing noise and interference in speech communication and speech recognition
EP2207168A3 (en) Robust two microphone noise suppression system
WO2007120939A3 (en) Spur suppression for a receiver in a wireless communication system
WO2011020992A3 (en) Method, system and item for selective sound cancelling
WO2004045244A8 (en) Adaptative noise canceling microphone system
TW200625987A (en) Audio receiver and volume reminder method
TW200740136A (en) Filter coefficient setting device, filter coefficient setting method, and program
EP1923864A3 (en) Noise reducing device, noise reducing method, noise reducing program, and noise reducting audio outputting device
WO2005053211A3 (en) Device and method for facilitating transmission, production, recording, sound reinforcement and real-time monitoring of audio and visual elements of a production
EP2369853A3 (en) Apparatus and method for reducing noise input from a rear direction
EP2621198A3 (en) Adaptive feedback cancellation based on inserted and/or intrinsic signal characteristics and matched retrieval
WO2004103013A3 (en) A method and system for self-compensating for microphone non-uniformities
EP2384025A3 (en) Audio system with portable audio enhancement device
WO2008057800A3 (en) Shielded rogowski coil assembly and methods
WO2008086216A3 (en) System and method for customized audio prompting
EP1915032A3 (en) Hearing-aid
WO2008071236A3 (en) Hearing system with enhanced noise cancelling and method for operating a hearing system
WO2008033602A3 (en) Localized content adaptive filter for low power scalable image processing
ATE335309T1 (en) SIGNAL PROCESSING APPARATUS AND METHOD
EP1699049A3 (en) Methods and apparatuses for recording and playing back audio signals
WO2006060243A3 (en) Device and method for reducing stuttering
IL184999A0 (en) System and method for removing interfering narrowband signals from wide bandwidth receive signal
WO2008036768A3 (en) System and method for identifying perceptual features

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees