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 flexibilityInfo
- 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
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.
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)
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 |
-
2004
- 2004-11-26 TW TW093136406A patent/TWI268477B/en not_active IP Right Cessation
Cited By (1)
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 |