JP5553760B2 - 符号化されたパラメータからの音声エネルギ推定 - Google Patents
符号化されたパラメータからの音声エネルギ推定 Download PDFInfo
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- JP5553760B2 JP5553760B2 JP2010527948A JP2010527948A JP5553760B2 JP 5553760 B2 JP5553760 B2 JP 5553760B2 JP 2010527948 A JP2010527948 A JP 2010527948A JP 2010527948 A JP2010527948 A JP 2010527948A JP 5553760 B2 JP5553760 B2 JP 5553760B2
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- 238000004891 communication Methods 0.000 claims abstract description 57
- 230000005284 excitation Effects 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 16
- 238000003786 synthesis reaction Methods 0.000 claims description 16
- 230000003044 adaptive effect Effects 0.000 claims description 12
- 230000000737 periodic effect Effects 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 6
- 238000012545 processing Methods 0.000 abstract description 4
- 238000013459 approach Methods 0.000 description 6
- 230000001629 suppression Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
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- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Description
Claims (9)
- 通信を処理する方法であって、
該推定励振エネルギ成分に対する適応寄与度を割り出すステップと、
符号化されたフレームの少なくとも1つの前のサブフレームの推定励振エネルギ成分に基づいて該推定励振エネルギ成分に対する固定寄与度を割り出すステップと、
割り出した該適応寄与度及び該固定寄与度に基づいて、該符号化されたフレームのサブフレームの該推定励振エネルギ成分を、該符号化されたフレームを受信する通信装置において割り出すステップと、
該サブフレームの推定フィルタ・エネルギ成分を、該通信装置において割り出すステップと、
該推定励振エネルギ成分及び該推定フィルタ・エネルギ成分から該サブフレームの推定エネルギを、該通信装置において割り出すステップとを備え、
該適応寄与度を割り出すステップは、該符号化されたフレームの少なくとも1つの前のサブフレームの該推定励振エネルギ成分に基づいて該サブフレームの適応寄与度を推定するステップを含む方法。
- 請求項1に記載の方法において、
該推定励振エネルギ成分と該推定フィルタ・エネルギ成分との積から該推定エネルギを割り出すステップを備える方法。
- 請求項1に記載の方法において、
該適応寄与度を割り出すステップは、
該符号化されたフレームの複数の推定サブフレーム適応寄与度の和を割り出すステップを備える方法。
- 請求項3に記載の方法において、
直接隣接する前のサブフレームに基づいて該サブフレームの該適応寄与度を推定するステップを備える方法。
- 請求項3に記載の方法において、
該通信のピッチ期間に基づいて少なくとも2つの連続した前のサブフレームを選択するステップを備え、該通信は少なくとも部分的に周期的であり、該ピッチ期間は、該ピッチ期間に対応する時間間隔における該通信の対応する部分を示し、そして、該サブフレームに対応する該通信の前の部分から該少なくとも2つの連続した前のサブフレームを選択するために該ピッチ期間を使用するステップを備える方法。
- 請求項1に記載の方法において、
拡張可変レートCODECを使用して該適応寄与度に関連する適応コードブック利得を、該通信装置において割り出すステップと、
該拡張可変レートCODECを使用して該固定寄与度に関連する固定コードブック利得を割り出すステップと、
該割り出された適応コードブック利得及び該固定コードブック利得に基づいて該推定励振エネルギ成分を割り出すステップとを備える方法。
- 請求項1に記載の方法において、該推定フィルタ・エネルギ成分は線形予測符号化合成フィルタに関連する方法。
- 請求項7に記載の方法において、
該推定フィルタ・エネルギ成分を割り出すために該線形予測符号化合成フィルタの応答の最初の部分のみを選択するステップを備える方法。
- 請求項1に記載の方法において、該サブフレームをフルにデコードすることなく該符号化されたフレームのサブフレームの該推定励振エネルギ成分を割り出すステップを備える方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/866,448 US20090094026A1 (en) | 2007-10-03 | 2007-10-03 | Method of determining an estimated frame energy of a communication |
US11/866,448 | 2007-10-03 | ||
PCT/US2008/011070 WO2009045305A1 (en) | 2007-10-03 | 2008-09-24 | Speech energy estimation from coded parameters |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010541018A JP2010541018A (ja) | 2010-12-24 |
JP5553760B2 true JP5553760B2 (ja) | 2014-07-16 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010527948A Expired - Fee Related JP5553760B2 (ja) | 2007-10-03 | 2008-09-24 | 符号化されたパラメータからの音声エネルギ推定 |
Country Status (8)
Country | Link |
---|---|
US (1) | US20090094026A1 (ja) |
EP (1) | EP2206108B1 (ja) |
JP (1) | JP5553760B2 (ja) |
KR (1) | KR101245451B1 (ja) |
CN (1) | CN101816038B (ja) |
AT (1) | ATE501504T1 (ja) |
DE (1) | DE602008005494D1 (ja) |
WO (1) | WO2009045305A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CA2813898C (en) * | 2010-10-07 | 2017-05-23 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for level estimation of coded audio frames in a bit stream domain |
US9208796B2 (en) | 2011-08-22 | 2015-12-08 | Genband Us Llc | Estimation of speech energy based on code excited linear prediction (CELP) parameters extracted from a partially-decoded CELP-encoded bit stream and applications of same |
US8880412B2 (en) | 2011-12-13 | 2014-11-04 | Futurewei Technologies, Inc. | Method to select active channels in audio mixing for multi-party teleconferencing |
CN113206773B (zh) | 2014-12-23 | 2024-01-12 | 杜比实验室特许公司 | 与语音质量估计相关的改进方法和设备 |
US10375131B2 (en) | 2017-05-19 | 2019-08-06 | Cisco Technology, Inc. | Selectively transforming audio streams based on audio energy estimate |
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-
2007
- 2007-10-03 US US11/866,448 patent/US20090094026A1/en not_active Abandoned
-
2008
- 2008-09-24 CN CN200880109899.3A patent/CN101816038B/zh not_active Expired - Fee Related
- 2008-09-24 KR KR1020107007379A patent/KR101245451B1/ko not_active IP Right Cessation
- 2008-09-24 EP EP08835801A patent/EP2206108B1/en not_active Not-in-force
- 2008-09-24 DE DE602008005494T patent/DE602008005494D1/de active Active
- 2008-09-24 AT AT08835801T patent/ATE501504T1/de not_active IP Right Cessation
- 2008-09-24 JP JP2010527948A patent/JP5553760B2/ja not_active Expired - Fee Related
- 2008-09-24 WO PCT/US2008/011070 patent/WO2009045305A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN101816038B (zh) | 2015-12-02 |
KR101245451B1 (ko) | 2013-03-19 |
WO2009045305A1 (en) | 2009-04-09 |
ATE501504T1 (de) | 2011-03-15 |
EP2206108B1 (en) | 2011-03-09 |
EP2206108A1 (en) | 2010-07-14 |
DE602008005494D1 (de) | 2011-04-21 |
US20090094026A1 (en) | 2009-04-09 |
JP2010541018A (ja) | 2010-12-24 |
KR20100061520A (ko) | 2010-06-07 |
CN101816038A (zh) | 2010-08-25 |
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