JPS6413600A - Voice encoder - Google Patents

Voice encoder

Info

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
Application number
JP62170293A
Other languages
Japanese (ja)
Inventor
Akira Fukui
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
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 filed Critical NEC Corp
Priority to JP62170293A priority Critical patent/JPS6413600A/en
Publication of JPS6413600A publication Critical patent/JPS6413600A/en
Pending legal-status Critical Current

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.
JP62170293A 1987-07-08 1987-07-08 Voice encoder Pending JPS6413600A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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