JPS54151303A - Discriminator for voice and voicelessness - Google Patents

Discriminator for voice and voicelessness

Info

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
Application number
JP4895578A
Other languages
Japanese (ja)
Other versions
JPS6211360B2 (en
Inventor
Satoru Taguchi
Kazuo Ochiai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4895578A priority Critical patent/JPS54151303A/en
Priority to CA324,405A priority patent/CA1123955A/en
Publication of JPS54151303A publication Critical patent/JPS54151303A/en
Priority to US06/236,428 priority patent/US4360708A/en
Publication of JPS6211360B2 publication Critical patent/JPS6211360B2/ja
Granted legal-status Critical Current

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
JP4895578A 1978-03-30 1978-04-24 Discriminator for voice and voicelessness Granted JPS54151303A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CA2165343A1 (en) A method and apparatus for calculating a coagulation characteristic of a sample of blood, a blood fraction or a control
JPS56104399A (en) Voice interval detection system
GB1491662A (en) Speech detection in a signal channel
JPS64999A (en) Pitch position extracting system
EP0576980A3 (en)
JPS54151303A (en) Discriminator for voice and voicelessness
JPS56123383A (en) Information transmission system for controlling corrosion prevention
SE8009085L (en) DATA DETECTION CIRCUIT FOR A TASI SYSTEM
JPS5549779A (en) Standard memory take-in method
ES8401626A1 (en) Method and apparatus for comparing data signals in a container inspection device
JPS5494212A (en) Discriminator for voice or voiceless condition
CA1147071A (en) Method of and apparatus for detecting speech in a voice channel signal
JPS53172A (en) Frequency detection method
JPS54139307A (en) Pitch extraction unit
CA2279264A1 (en) Speech immunity enhancement in linear prediction based dtmf detector
JPS6455956A (en) Identification equipment for call signal
JPS52140076A (en) Automatic assembling apparatus
JPS5660344A (en) Ae wave detector
JPS5544984A (en) Peak value calculating circuit
JPS5494209A (en) Audio analysis and synthesis unit
GB1113225A (en) Apparatus for distinguishing between voiced and unvoiced sounds in a speech signal
JPS55134408A (en) Data collection method
JPS5692409A (en) Measuring method for thickness of corrugated sheath
JPS56104265A (en) Radar signal processor
JPS56137266A (en) Automatic detector for magnetic abnormality