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TW200623025A - Search system and method thereof for searching code-vector of speech signal in speech encoder - Google Patents

Search system and method thereof for searching code-vector of speech signal in speech encoder

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Publication number
TW200623025A
TW200623025A TW093140788A TW93140788A TW200623025A TW 200623025 A TW200623025 A TW 200623025A TW 093140788 A TW093140788 A TW 093140788A TW 93140788 A TW93140788 A TW 93140788A TW 200623025 A TW200623025 A TW 200623025A
Authority
TW
Taiwan
Prior art keywords
vector
code
pulse
speech
combination
Prior art date
Application number
TW093140788A
Other languages
Chinese (zh)
Other versions
TWI253057B (en
Inventor
Sheng-Lung Lee
Hsien-Ming Tsai
Original Assignee
Quanta Comp Inc
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 Quanta Comp Inc filed Critical Quanta Comp Inc
Priority to TW93140788A priority Critical patent/TWI253057B/en
Application granted granted Critical
Publication of TWI253057B publication Critical patent/TWI253057B/en
Publication of TW200623025A publication Critical patent/TW200623025A/en

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  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

The present invention provides a search method for searching a target code-vector of a speech signal in a speech encoder. The target code-vector defines a plurality of pulse positions and comprises a plurality of pulses each assignable to the pulse positions of the code-vector. The pulse positions are distributed to a plurality of tracks. The search method comprises the following steps: calculating a hit function for each pulse position; determine a plurality of pulse combinations in each track; calculating a combination hit function for each pulse combination; selecting the pulse combination with the highest combination hit function in each track to form a pre-selected code-vector; form a candidate code-vector; according to the candidate code-vector and the pre-selected code-vector, performing a code-vector update procedure to determine the target code-vector.
TW93140788A 2004-12-27 2004-12-27 Search system and method thereof for searching code-vector of speech signal in speech encoder TWI253057B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW93140788A TWI253057B (en) 2004-12-27 2004-12-27 Search system and method thereof for searching code-vector of speech signal in speech encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93140788A TWI253057B (en) 2004-12-27 2004-12-27 Search system and method thereof for searching code-vector of speech signal in speech encoder

Publications (2)

Publication Number Publication Date
TWI253057B TWI253057B (en) 2006-04-11
TW200623025A true TW200623025A (en) 2006-07-01

Family

ID=37564995

Family Applications (1)

Application Number Title Priority Date Filing Date
TW93140788A TWI253057B (en) 2004-12-27 2004-12-27 Search system and method thereof for searching code-vector of speech signal in speech encoder

Country Status (1)

Country Link
TW (1) TWI253057B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2661745B1 (en) 2011-02-14 2015-04-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for error concealment in low-delay unified speech and audio coding (usac)
MY159444A (en) * 2011-02-14 2017-01-13 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E V Encoding and decoding of pulse positions of tracks of an audio signal
BR112012029132B1 (en) 2011-02-14 2021-10-05 Fraunhofer - Gesellschaft Zur Förderung Der Angewandten Forschung E.V REPRESENTATION OF INFORMATION SIGNAL USING OVERLAY TRANSFORMED
EP3471092B1 (en) 2011-02-14 2020-07-08 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. Decoding of pulse positions of tracks of an audio signal
JP5969513B2 (en) 2011-02-14 2016-08-17 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン Audio codec using noise synthesis between inert phases
KR101525185B1 (en) 2011-02-14 2015-06-02 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. Apparatus and method for coding a portion of an audio signal using a transient detection and a quality result
MX2013009344A (en) 2011-02-14 2013-10-01 Fraunhofer Ges Forschung Apparatus and method for processing a decoded audio signal in a spectral domain.
AU2012217153B2 (en) 2011-02-14 2015-07-16 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for encoding and decoding an audio signal using an aligned look-ahead portion
US9165650B2 (en) * 2013-02-07 2015-10-20 Qualcomm Incorporated Hybrid dynamic-static encoder with optional hit and/or multi-hit detection

Also Published As

Publication number Publication date
TWI253057B (en) 2006-04-11

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