JPS6491200A - Voice analysis system and voice synthesization system - Google Patents
Voice analysis system and voice synthesization systemInfo
- Publication number
- JPS6491200A JPS6491200A JP62249241A JP24924187A JPS6491200A JP S6491200 A JPS6491200 A JP S6491200A JP 62249241 A JP62249241 A JP 62249241A JP 24924187 A JP24924187 A JP 24924187A JP S6491200 A JPS6491200 A JP S6491200A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- voice
- waveform
- sound source
- pitch period
- 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.)
- Pending
Links
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
PURPOSE: To keep a voice high-quality by segmenting a residual signal waveform in a prescribed section not longer than a pitch period in the case of a residual signal having periodicity and outputting this waveform as voice information of a time section together with a parameter indicating a spectrum envelope and the pitch period. CONSTITUTION: A spectrum envelope parameter extraction part 2 extracts a spectrum envelope parameter from an original voice signal, and a reverse filter part 22 takes out a residual signal from the original voice signal. A periodicity discrimination part 23 discriminates periodicity of the residual signal; and if it has periodicity, the pitch period is outputted, and a residual segmenting part 25 segments a continuous signal waveform within the time of the pitch period from the residual signal in this case and outputs it as a sound source waveform. At the time of synthesizing a voice from this voice information, the sound source waveform is inputted to a periodic sound source generation part 31, and a signal obtained by repeating the signal of the sound source waveform with the pitch period is generated as a sound source signal, and this signal is caused to pass a synthesizing filter 33 constituted with the spectrum envelope parameter. Thus, the quality of the synthesized voice is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62249241A JPS6491200A (en) | 1987-10-02 | 1987-10-02 | Voice analysis system and voice synthesization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62249241A JPS6491200A (en) | 1987-10-02 | 1987-10-02 | Voice analysis system and voice synthesization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6491200A true JPS6491200A (en) | 1989-04-10 |
Family
ID=17190025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62249241A Pending JPS6491200A (en) | 1987-10-02 | 1987-10-02 | Voice analysis system and voice synthesization system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6491200A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007304604A (en) * | 1994-08-10 | 2007-11-22 | Qualcomm Inc | Method and apparatus for selecting encoding rate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5961891A (en) * | 1982-10-01 | 1984-04-09 | 松下電器産業株式会社 | Encoding of residual signal |
| JPS62102294A (en) * | 1985-10-30 | 1987-05-12 | 株式会社日立製作所 | Voice coding system |
-
1987
- 1987-10-02 JP JP62249241A patent/JPS6491200A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5961891A (en) * | 1982-10-01 | 1984-04-09 | 松下電器産業株式会社 | Encoding of residual signal |
| JPS62102294A (en) * | 1985-10-30 | 1987-05-12 | 株式会社日立製作所 | Voice coding system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007304604A (en) * | 1994-08-10 | 2007-11-22 | Qualcomm Inc | Method and apparatus for selecting encoding rate |
| JP2007304606A (en) * | 1994-08-10 | 2007-11-22 | Qualcomm Inc | Method and apparatus for determining encoding rate in a variable rate vocoder |
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