JPS6413600A - Voice encoder - Google Patents
Voice encoderInfo
- Publication number
- JPS6413600A JPS6413600A JP62170293A JP17029387A JPS6413600A JP S6413600 A JPS6413600 A JP S6413600A JP 62170293 A JP62170293 A JP 62170293A JP 17029387 A JP17029387 A JP 17029387A JP S6413600 A JPS6413600 A JP S6413600A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- pieces
- pulses
- prescribed
- retrieval
- 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
Abstract
PURPOSE: To improve encoded tone quality with less operation amount by amplitude adjusting a pulse obtained beforehand when the number of prescribed pieces of pulses are retrieved in a pulse amplitude adjustment means in a generation process of a multi-pulse. CONSTITUTION: Respective time positions and sizes of prescribed plural pieces of pulses are obtained based on a mutual correlation obtained in a mutual correlation operation circuit 3 being a second operation means and an autocorrelation obtained in a an autocorrelation operation circuit 4 being a third operation means, and the beforehand obtained pulse amplitude when the number of pieces of pulses are the number of prescribed pieces is adjusted by a pulse retrieval circuit 5 being a pulse retrieval means based on the value of the mutual correlation of the pulse position in the process. In such a manner, since the pulse amplitude is adjusted by the number of limited times on the way of the pulse retrieval, the tone quality of the encoded voice is enhanced with the less operation amount.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62170293A JPS6413600A (en) | 1987-07-08 | 1987-07-08 | Voice encoder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62170293A JPS6413600A (en) | 1987-07-08 | 1987-07-08 | Voice encoder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6413600A true JPS6413600A (en) | 1989-01-18 |
Family
ID=15902274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62170293A Pending JPS6413600A (en) | 1987-07-08 | 1987-07-08 | Voice encoder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6413600A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008299677A (en) * | 2007-05-31 | 2008-12-11 | Toyota Motor Corp | Sound source approaching detector and pulse neural network arithmetic device |
US8313816B2 (en) | 2007-09-13 | 2012-11-20 | Hiromi Ikechi | Method for manufacturing reticulate contact body elements and a rotating circular reticulate contact body using them |
-
1987
- 1987-07-08 JP JP62170293A patent/JPS6413600A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008299677A (en) * | 2007-05-31 | 2008-12-11 | Toyota Motor Corp | Sound source approaching detector and pulse neural network arithmetic device |
US8313816B2 (en) | 2007-09-13 | 2012-11-20 | Hiromi Ikechi | Method for manufacturing reticulate contact body elements and a rotating circular reticulate contact body using them |
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