WO2008081777A1 - 高域信号補間装置及び高域信号補間方法 - Google Patents

高域信号補間装置及び高域信号補間方法 Download PDF

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Publication number
WO2008081777A1
WO2008081777A1 PCT/JP2007/074826 JP2007074826W WO2008081777A1 WO 2008081777 A1 WO2008081777 A1 WO 2008081777A1 JP 2007074826 W JP2007074826 W JP 2007074826W WO 2008081777 A1 WO2008081777 A1 WO 2008081777A1
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WO
WIPO (PCT)
Prior art keywords
frequency signal
signal
supplied
pass filter
signal interpolation
Prior art date
Application number
PCT/JP2007/074826
Other languages
English (en)
French (fr)
Inventor
Yasushi Sato
Atsuko Ryu
Original Assignee
Kyushu Institute Of Technology
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 Kyushu Institute Of Technology filed Critical Kyushu Institute Of Technology
Priority to US12/448,419 priority Critical patent/US8301281B2/en
Priority to JP2008552108A priority patent/JP4984178B2/ja
Priority to GB0912523A priority patent/GB2461185B/en
Publication of WO2008081777A1 publication Critical patent/WO2008081777A1/ja

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/04—Time compression or expansion

Abstract

　簡単な処理で良好な高域信号を形成し、実用的な高域信号補間を実施する。 　圧縮を伴う機器から再生されたデジタルオーディオ信号が原信号として入力端子１に供給され、この原信号がバンドパスフィルタ２を介してデジタルサンプルホールド処理回路３に供給される。このデジタルサンプルホールド処理回路３からの信号が±１乗算器６に供給され符号ビットを交互に反転する処理が行われる。この符号ビットを交互に反転された信号の高調波部分をハイパスフィルタ（ＨＰＦ）７で取り出す。一方、入力端子１からの原信号を、上述のデジタルサンプルホールド処理回路３等での処理時間に相当する遅延回路８に供給し、遅延時間の揃えられた信号を形成する。そして、これらのハイパスフィルタ（ＨＰＦ）７及び遅延回路８からの信号を加算回路１０で加算して出力端子１１に出力する。
PCT/JP2007/074826 2006-12-25 2007-12-25 高域信号補間装置及び高域信号補間方法 WO2008081777A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/448,419 US8301281B2 (en) 2006-12-25 2007-12-25 High-frequency signal interpolation apparatus and high-frequency signal interpolation method
JP2008552108A JP4984178B2 (ja) 2006-12-25 2007-12-25 高域信号補間装置及び高域信号補間方法
GB0912523A GB2461185B (en) 2006-12-25 2007-12-25 High-frequency signal interpolation device and high-frequency signal interpolation method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006348356 2006-12-25
JP2006-348356 2006-12-25

Publications (1)

Publication Number Publication Date
WO2008081777A1 true WO2008081777A1 (ja) 2008-07-10

Family

ID=39588460

Family Applications (1)

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PCT/JP2007/074826 WO2008081777A1 (ja) 2006-12-25 2007-12-25 高域信号補間装置及び高域信号補間方法

Country Status (4)

Country Link
US (1) US8301281B2 (ja)
JP (1) JP4984178B2 (ja)
GB (1) GB2461185B (ja)
WO (1) WO2008081777A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4972742B2 (ja) * 2006-10-17 2012-07-11 国立大学法人九州工業大学 高域信号補間方法及び高域信号補間装置
US9614698B2 (en) * 2014-08-27 2017-04-04 Samsung Display Co., Ltd. Transmitter switching equalization for high speed links

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JPH0964750A (ja) * 1995-08-18 1997-03-07 Victor Co Of Japan Ltd 音響信号処理装置
JPH0962294A (ja) * 1995-08-25 1997-03-07 Rohm Co Ltd ピッチシフト回路およびそれを備えた音声信号処理装置
JPH1083197A (ja) * 1996-09-09 1998-03-31 Sony Corp ディジタル信号処理方法
JP2001337700A (ja) * 2000-05-22 2001-12-07 Texas Instr Inc <Ti> 広帯域音声符号化システムおよびその方法
JP2003140692A (ja) * 2001-11-02 2003-05-16 Matsushita Electric Ind Co Ltd 符号化装置及び復号化装置
JP2004289196A (ja) * 2002-03-08 2004-10-14 Nippon Telegr & Teleph Corp <Ntt> ディジタル信号符号化方法、復号化方法、符号化装置、復号化装置及びディジタル信号符号化プログラム、復号化プログラム
WO2005011127A1 (ja) * 2003-07-29 2005-02-03 Matsushita Electric Industrial Co., Ltd. オーディオ信号帯域拡張装置及び方法
WO2006001218A1 (ja) * 2004-06-25 2006-01-05 Matsushita Electric Industrial Co., Ltd. 音声符号化装置、音声復号化装置、およびこれらの方法

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JPS6483197A (en) * 1987-09-25 1989-03-28 Power Reactor & Nuclear Fuel Liquid level changing device of overflow system in high-temperature liquid vessel
JP3137289B2 (ja) 1989-05-26 2001-02-19 パイオニア株式会社 オーディオ信号処理装置
EP1431962B1 (en) 2000-05-22 2006-04-05 Texas Instruments Incorporated Wideband speech coding system and method
US7330814B2 (en) * 2000-05-22 2008-02-12 Texas Instruments Incorporated Wideband speech coding with modulated noise highband excitation system and method
DE60204038T2 (de) 2001-11-02 2006-01-19 Matsushita Electric Industrial Co., Ltd., Kadoma Vorrichtung zum codieren bzw. decodieren eines audiosignals
JP3649197B2 (ja) * 2002-02-13 2005-05-18 ヤマハ株式会社 楽音生成装置および楽音生成方法
AU2003213439A1 (en) 2002-03-08 2003-09-22 Nippon Telegraph And Telephone Corporation Digital signal encoding method, decoding method, encoding device, decoding device, digital signal encoding program, and decoding program
JP4041385B2 (ja) 2002-11-29 2008-01-30 株式会社ケンウッド 信号補間装置、信号補間方法及びプログラム
KR101014720B1 (ko) 2004-01-19 2011-02-16 엘지전자 주식회사 반도체 레이저 다이오드 제조 방법
JP4701392B2 (ja) 2005-07-20 2011-06-15 国立大学法人九州工業大学 高域信号補間方法及び高域信号補間装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0964750A (ja) * 1995-08-18 1997-03-07 Victor Co Of Japan Ltd 音響信号処理装置
JPH0962294A (ja) * 1995-08-25 1997-03-07 Rohm Co Ltd ピッチシフト回路およびそれを備えた音声信号処理装置
JPH1083197A (ja) * 1996-09-09 1998-03-31 Sony Corp ディジタル信号処理方法
JP2001337700A (ja) * 2000-05-22 2001-12-07 Texas Instr Inc <Ti> 広帯域音声符号化システムおよびその方法
JP2003140692A (ja) * 2001-11-02 2003-05-16 Matsushita Electric Ind Co Ltd 符号化装置及び復号化装置
JP2004289196A (ja) * 2002-03-08 2004-10-14 Nippon Telegr & Teleph Corp <Ntt> ディジタル信号符号化方法、復号化方法、符号化装置、復号化装置及びディジタル信号符号化プログラム、復号化プログラム
WO2005011127A1 (ja) * 2003-07-29 2005-02-03 Matsushita Electric Industrial Co., Ltd. オーディオ信号帯域拡張装置及び方法
WO2006001218A1 (ja) * 2004-06-25 2006-01-05 Matsushita Electric Industrial Co., Ltd. 音声符号化装置、音声復号化装置、およびこれらの方法

Also Published As

Publication number Publication date
US8301281B2 (en) 2012-10-30
GB2461185B (en) 2011-08-17
JPWO2008081777A1 (ja) 2010-04-30
US20100057230A1 (en) 2010-03-04
GB0912523D0 (en) 2009-08-26
JP4984178B2 (ja) 2012-07-25
GB2461185A (en) 2009-12-30

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