AU1314588A - Coding of acoustic waveforms - Google Patents
Coding of acoustic waveformsInfo
- Publication number
- AU1314588A AU1314588A AU13145/88A AU1314588A AU1314588A AU 1314588 A AU1314588 A AU 1314588A AU 13145/88 A AU13145/88 A AU 13145/88A AU 1314588 A AU1314588 A AU 1314588A AU 1314588 A AU1314588 A AU 1314588A
- Authority
- AU
- Australia
- Prior art keywords
- phase
- disclosed
- pitch
- coding
- voice
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
Encoding techniques and devices based on a sinusoidal speech representation model are disclosed. In one aspect of the invention, a pitch-adaptive channel encoding technique for amplitude coding is disclosed in which the channel spacing is varied in accordance with the pitch of the speaker's voice. In another aspect of the invention, a phase synthesis technique is disclosed which locks rapidly-varying phases into synchrony with the phase of the fundamental. Phase coding techniques which introduce a voice-dependent random phase and a pitch-adaptive quadratic phase dispersion are also disclosed.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3409787A | 1987-04-02 | 1987-04-02 | |
US034097 | 1987-04-02 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU74364/91A Division AU643769B2 (en) | 1987-04-02 | 1991-04-12 | Coding of acoustic waveforms |
Publications (2)
Publication Number | Publication Date |
---|---|
AU1314588A true AU1314588A (en) | 1988-10-06 |
AU612351B2 AU612351B2 (en) | 1991-07-11 |
Family
ID=21874290
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU13145/88A Ceased AU612351B2 (en) | 1987-04-02 | 1988-03-16 | Coding of acoustic waveforms |
AU74364/91A Ceased AU643769B2 (en) | 1987-04-02 | 1991-04-12 | Coding of acoustic waveforms |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU74364/91A Ceased AU643769B2 (en) | 1987-04-02 | 1991-04-12 | Coding of acoustic waveforms |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0285276B1 (en) |
JP (2) | JP3191926B2 (en) |
AT (1) | ATE95936T1 (en) |
AU (2) | AU612351B2 (en) |
CA (1) | CA1332982C (en) |
DE (1) | DE3884839T2 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5029509A (en) * | 1989-05-10 | 1991-07-09 | Board Of Trustees Of The Leland Stanford Junior University | Musical synthesizer combining deterministic and stochastic waveforms |
JPH04150233A (en) * | 1990-10-09 | 1992-05-22 | Matsushita Electric Ind Co Ltd | Signal transmission method |
JP2606756B2 (en) * | 1990-10-22 | 1997-05-07 | 財団法人鉄道総合技術研究所 | Digital signal transmission equipment |
DE4126882A1 (en) * | 1991-08-14 | 1993-02-18 | Philips Patentverwaltung | ARRANGEMENT FOR LANGUAGE TRANSMISSION |
WO1993018505A1 (en) * | 1992-03-02 | 1993-09-16 | The Walt Disney Company | Voice transformation system |
BE1007428A3 (en) * | 1993-08-02 | 1995-06-13 | Philips Electronics Nv | Transmission of reconstruction of missing signal samples. |
US5517595A (en) * | 1994-02-08 | 1996-05-14 | At&T Corp. | Decomposition in noise and periodic signal waveforms in waveform interpolation |
JP2778567B2 (en) * | 1995-12-23 | 1998-07-23 | 日本電気株式会社 | Signal encoding apparatus and method |
US6112169A (en) * | 1996-11-07 | 2000-08-29 | Creative Technology, Ltd. | System for fourier transform-based modification of audio |
US6449592B1 (en) | 1999-02-26 | 2002-09-10 | Qualcomm Incorporated | Method and apparatus for tracking the phase of a quasi-periodic signal |
WO2002003381A1 (en) * | 2000-02-29 | 2002-01-10 | Qualcomm Incorporated | Method and apparatus for tracking the phase of a quasi-periodic signal |
DE60113034T2 (en) * | 2000-06-20 | 2006-06-14 | Koninkl Philips Electronics Nv | SINUSOIDAL ENCODING |
AU2003274617A1 (en) * | 2002-11-29 | 2004-06-23 | Koninklijke Philips Electronics N.V. | Audio coding |
WO2005024783A1 (en) * | 2003-09-05 | 2005-03-17 | Koninklijke Philips Electronics N.V. | Low bit-rate audio encoding |
US8805694B2 (en) | 2009-02-16 | 2014-08-12 | Electronics And Telecommunications Research Institute | Method and apparatus for encoding and decoding audio signal using adaptive sinusoidal coding |
CN102264022B (en) * | 2010-04-08 | 2014-03-12 | Gn瑞声达公司 | Stability improvements in hearing aids |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0215915A4 (en) * | 1985-03-18 | 1987-11-25 | Massachusetts Inst Technology | Processing of acoustic waveforms. |
US4856068A (en) * | 1985-03-18 | 1989-08-08 | Massachusetts Institute Of Technology | Audio pre-processing methods and apparatus |
-
1988
- 1988-03-01 CA CA000560230A patent/CA1332982C/en not_active Expired - Lifetime
- 1988-03-10 DE DE88302063T patent/DE3884839T2/en not_active Expired - Lifetime
- 1988-03-10 AT AT88302063T patent/ATE95936T1/en not_active IP Right Cessation
- 1988-03-10 EP EP88302063A patent/EP0285276B1/en not_active Expired - Lifetime
- 1988-03-16 AU AU13145/88A patent/AU612351B2/en not_active Ceased
- 1988-03-31 JP JP07665188A patent/JP3191926B2/en not_active Expired - Lifetime
-
1991
- 1991-04-12 AU AU74364/91A patent/AU643769B2/en not_active Ceased
-
2000
- 2000-12-25 JP JP2000393559A patent/JP2001228898A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0285276B1 (en) | 1993-10-13 |
AU7436491A (en) | 1991-07-11 |
CA1332982C (en) | 1994-11-08 |
AU643769B2 (en) | 1993-11-25 |
AU612351B2 (en) | 1991-07-11 |
ATE95936T1 (en) | 1993-10-15 |
DE3884839D1 (en) | 1993-11-18 |
JP2001228898A (en) | 2001-08-24 |
DE3884839T2 (en) | 1994-05-05 |
EP0285276A2 (en) | 1988-10-05 |
JP3191926B2 (en) | 2001-07-23 |
EP0285276A3 (en) | 1989-11-23 |
JPH01221800A (en) | 1989-09-05 |
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