JPS54151303A - Discriminator for voice and voicelessness - Google Patents
Discriminator for voice and voicelessnessInfo
- Publication number
- JPS54151303A JPS54151303A JP4895578A JP4895578A JPS54151303A JP S54151303 A JPS54151303 A JP S54151303A JP 4895578 A JP4895578 A JP 4895578A JP 4895578 A JP4895578 A JP 4895578A JP S54151303 A JPS54151303 A JP S54151303A
- Authority
- JP
- Japan
- Prior art keywords
- parameter
- voice
- outputs
- voicelessness
- discriminator
- 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
Abstract
PURPOSE: To enable to discriminate voice and voicelessness accurately, by obtaining the spectrum of audio with the linear forescasting analysis and the pitch with the autocorrelation analysis method, to compress the deviation of the distribution of the maximum value of K parameter and autocorrelation.
CONSTITUTION: The K parameter pick up unit 102 receives audio input signal from the terminal 102, picks up the K parameter being the linear forecasting coefficient, called partial autocorrelation, to a plurality of orders with the linear forecasting analysis method, and outputs the K parameter of a plurality of orders piked up to the log area ratio converter 103. The converter 103 converts the K parameter of primary, secondary order,... into the log area ratio L1, L2... by using the value memorized in the read only memory in advance and outputs it to the voice and voicelessess discriminator 104. The discriminator 104 discriminates voice or voicelessness and outputs it, depending whether the value of W1L1+W2L2+... is greater than the threshold value for discrimination predetermined or smaller. Further, W1 and W2 are constants obtained in advance.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4895578A JPS54151303A (en) | 1978-04-24 | 1978-04-24 | Discriminator for voice and voicelessness |
CA324,405A CA1123955A (en) | 1978-03-30 | 1979-03-29 | Speech analysis and synthesis apparatus |
US06/236,428 US4360708A (en) | 1978-03-30 | 1981-02-20 | Speech processor having speech analyzer and synthesizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4895578A JPS54151303A (en) | 1978-04-24 | 1978-04-24 | Discriminator for voice and voicelessness |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54151303A true JPS54151303A (en) | 1979-11-28 |
JPS6211360B2 JPS6211360B2 (en) | 1987-03-12 |
Family
ID=12817690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4895578A Granted JPS54151303A (en) | 1978-03-30 | 1978-04-24 | Discriminator for voice and voicelessness |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54151303A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63163495A (en) * | 1986-12-26 | 1988-07-06 | 松下電器産業株式会社 | Voice section detector |
-
1978
- 1978-04-24 JP JP4895578A patent/JPS54151303A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63163495A (en) * | 1986-12-26 | 1988-07-06 | 松下電器産業株式会社 | Voice section detector |
JPH07101354B2 (en) * | 1986-12-26 | 1995-11-01 | 松下電器産業株式会社 | Voice section detector |
Also Published As
Publication number | Publication date |
---|---|
JPS6211360B2 (en) | 1987-03-12 |
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