ATE314719T1 - METHOD FOR SPEED MODIFICATION OF VOICE SIGNALS, USE OF THE METHOD, AND ARRANGEMENT FOR IMPLEMENTING THE METHOD - Google Patents
METHOD FOR SPEED MODIFICATION OF VOICE SIGNALS, USE OF THE METHOD, AND ARRANGEMENT FOR IMPLEMENTING THE METHODInfo
- Publication number
- ATE314719T1 ATE314719T1 AT00610036T AT00610036T ATE314719T1 AT E314719 T1 ATE314719 T1 AT E314719T1 AT 00610036 T AT00610036 T AT 00610036T AT 00610036 T AT00610036 T AT 00610036T AT E314719 T1 ATE314719 T1 AT E314719T1
- Authority
- AT
- Austria
- Prior art keywords
- segment
- pitch period
- speech signal
- fraction
- maximum expected
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 5
- 238000012986 modification Methods 0.000 title 1
- 230000004048 modification Effects 0.000 title 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/04—Time compression or expansion
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A method of converting the speech rate of a speech signal (2) with a pitch period below a maximum expected pitch period comprises the steps of dividing the speech signal into segments, estimating the pitch period in a segment, copying a fraction of the speech signal in the segment, said fraction having a duration equal to said estimated pitch period, providing from the fraction an intermediate signal having the same duration, and expanding the segment by inserting the intermediate signal pitch synchronously into the speech signal of the segment. A segment size longer than the maximum expected pitch period but shorter than twice the maximum expected pitch period is used. A considerably smaller amount of data has to be processed for each segment, so that the method can be implemented with the limited computational resources of e.g. a mobile telephone. A similar device is also provided. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00610036A EP1143417B1 (en) | 2000-04-06 | 2000-04-06 | A method of converting the speech rate of a speech signal, use of the method, and a device adapted therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE314719T1 true ATE314719T1 (en) | 2006-01-15 |
Family
ID=8174384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT00610036T ATE314719T1 (en) | 2000-04-06 | 2000-04-06 | METHOD FOR SPEED MODIFICATION OF VOICE SIGNALS, USE OF THE METHOD, AND ARRANGEMENT FOR IMPLEMENTING THE METHOD |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1143417B1 (en) |
| AT (1) | ATE314719T1 (en) |
| DE (1) | DE60025158T2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3871657B2 (en) * | 2003-05-27 | 2007-01-24 | 株式会社東芝 | Spoken speed conversion device, method, and program thereof |
| CN101719371B (en) * | 2009-11-20 | 2012-04-04 | 安凯(广州)微电子技术有限公司 | Voice speed changing method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5828995A (en) * | 1995-02-28 | 1998-10-27 | Motorola, Inc. | Method and apparatus for intelligible fast forward and reverse playback of time-scale compressed voice messages |
| US5933808A (en) * | 1995-11-07 | 1999-08-03 | The United States Of America As Represented By The Secretary Of The Navy | Method and apparatus for generating modified speech from pitch-synchronous segmented speech waveforms |
| JPH09198089A (en) * | 1996-01-19 | 1997-07-31 | Matsushita Electric Ind Co Ltd | Reproduction speed converting device |
| CA2242610C (en) * | 1996-11-11 | 2003-01-28 | Matsushita Electric Industrial Co., Ltd. | Sound reproducing speed converter |
-
2000
- 2000-04-06 EP EP00610036A patent/EP1143417B1/en not_active Expired - Lifetime
- 2000-04-06 AT AT00610036T patent/ATE314719T1/en not_active IP Right Cessation
- 2000-04-06 DE DE60025158T patent/DE60025158T2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE60025158T2 (en) | 2006-07-06 |
| DE60025158D1 (en) | 2006-02-02 |
| EP1143417B1 (en) | 2005-12-28 |
| EP1143417A1 (en) | 2001-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |