WO2000017859A8 - Noise suppression for low bitrate speech coder - Google Patents
Noise suppression for low bitrate speech coderInfo
- Publication number
- WO2000017859A8 WO2000017859A8 PCT/US1999/021033 US9921033W WO0017859A8 WO 2000017859 A8 WO2000017859 A8 WO 2000017859A8 US 9921033 W US9921033 W US 9921033W WO 0017859 A8 WO0017859 A8 WO 0017859A8
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- noise
- input signal
- band spectrum
- noise suppression
- perceptual band
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L2021/02168—Noise filtering characterised by the method used for estimating noise the estimation exclusively taking place during speech pauses
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L21/0232—Processing in the frequency domain
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Quality & Reliability (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Noise Elimination (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU60378/99A AU6037899A (en) | 1998-09-23 | 1999-09-15 | Noise suppression for low bitrate speech coder |
JP2000571442A JP2003517624A (en) | 1998-09-23 | 1999-09-15 | Noise suppression for low bit rate speech coder |
CA002344695A CA2344695A1 (en) | 1998-09-23 | 1999-09-15 | Noise suppression for low bitrate speech coder |
KR1020017003777A KR20010075343A (en) | 1998-09-23 | 1999-09-15 | Noise suppression for low bitrate speech coder |
EP99969525A EP1116224A4 (en) | 1998-09-23 | 1999-09-15 | Noise suppression for low bitrate speech coder |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/159,358 | 1998-09-23 | ||
US09/159,358 US6122610A (en) | 1998-09-23 | 1998-09-23 | Noise suppression for low bitrate speech coder |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000017859A1 WO2000017859A1 (en) | 2000-03-30 |
WO2000017859A8 true WO2000017859A8 (en) | 2000-07-20 |
Family
ID=22572262
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/021033 WO2000017859A1 (en) | 1998-09-23 | 1999-09-15 | Noise suppression for low bitrate speech coder |
PCT/KR1999/000577 WO2000017855A1 (en) | 1998-09-23 | 1999-09-22 | Noise suppression for low bitrate speech coder |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR1999/000577 WO2000017855A1 (en) | 1998-09-23 | 1999-09-22 | Noise suppression for low bitrate speech coder |
Country Status (10)
Country | Link |
---|---|
US (1) | US6122610A (en) |
EP (1) | EP1116224A4 (en) |
JP (1) | JP2003517624A (en) |
KR (2) | KR20010075343A (en) |
CN (2) | CN1326584A (en) |
AU (2) | AU6037899A (en) |
BR (1) | BR9913011A (en) |
CA (2) | CA2344695A1 (en) |
IL (1) | IL136090A0 (en) |
WO (2) | WO2000017859A1 (en) |
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-
1998
- 1998-09-23 US US09/159,358 patent/US6122610A/en not_active Expired - Fee Related
-
1999
- 1999-09-15 KR KR1020017003777A patent/KR20010075343A/en not_active Application Discontinuation
- 1999-09-15 WO PCT/US1999/021033 patent/WO2000017859A1/en not_active Application Discontinuation
- 1999-09-15 AU AU60378/99A patent/AU6037899A/en not_active Abandoned
- 1999-09-15 JP JP2000571442A patent/JP2003517624A/en active Pending
- 1999-09-15 CA CA002344695A patent/CA2344695A1/en not_active Abandoned
- 1999-09-15 CN CN99813506A patent/CN1326584A/en active Pending
- 1999-09-15 EP EP99969525A patent/EP1116224A4/en not_active Withdrawn
- 1999-09-22 CA CA002310491A patent/CA2310491A1/en not_active Abandoned
- 1999-09-22 WO PCT/KR1999/000577 patent/WO2000017855A1/en active IP Right Grant
- 1999-09-22 BR BR9913011-4A patent/BR9913011A/en not_active IP Right Cessation
- 1999-09-22 KR KR1020007005629A patent/KR100330230B1/en not_active IP Right Cessation
- 1999-09-22 CN CN99801661A patent/CN1286788A/en active Pending
- 1999-09-22 IL IL13609099A patent/IL136090A0/en unknown
- 1999-09-22 AU AU60079/99A patent/AU6007999A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN1326584A (en) | 2001-12-12 |
JP2003517624A (en) | 2003-05-27 |
US6122610A (en) | 2000-09-19 |
KR100330230B1 (en) | 2002-05-09 |
IL136090A0 (en) | 2001-05-20 |
EP1116224A4 (en) | 2003-06-25 |
CN1286788A (en) | 2001-03-07 |
AU6007999A (en) | 2000-04-10 |
BR9913011A (en) | 2001-03-27 |
KR20010032390A (en) | 2001-04-16 |
WO2000017855A1 (en) | 2000-03-30 |
CA2310491A1 (en) | 2000-03-30 |
KR20010075343A (en) | 2001-08-09 |
AU6037899A (en) | 2000-04-10 |
CA2344695A1 (en) | 2000-03-30 |
WO2000017859A1 (en) | 2000-03-30 |
EP1116224A1 (en) | 2001-07-18 |
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