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2010 Fiscal Year Annual Research Report

拡張ロバスト音声認識システムの極低消費電力型LSI設計に関する研究

Research Project

Project/Area Number 20300014
Research InstitutionHokkaido University

Principal Investigator

宮永 喜一  北海道大学, 大学院・情報科学研究科, 教授 (20166185)

Co-Investigator(Kenkyū-buntansha) 吉澤 真吾  北海道大学, 大学院・情報科学研究科, 助教 (20447080)
Keywords音声認識チップ / 雑音ロバスト音声認識 / 音響ゴースト / 極低消費電力化 / サブシュレッシュホールド / フレーズ認識 / 実時間音声認識 / 低電圧回路
Research Abstract

本年度では,音響ゴーストや各種環境雑音に耐性を持つフレーズ音声認識システムの方式構築とシステムのLSI化を行った。回路レベルで実現したサブスレッシュホールド領域での回路デバイスライブラリを利用して,極低消費電力型の音声認識システムの設計を行った。本システムの目的は,自然発話中の単語やフレーズの認識である。そのため,音声区間検出部は,自然発話から得られた連続音声波形より単語やフレーズの抽出を行う必要がある。これは,雑音環境下を考慮して,区間検出フリーの並列型音声認識・棄却方式を新たに提案し,その実験をMATLABシミュレータ上で行った。音声棄却方式とは,対象となるフレーズや単語以外の音声が入力された場合それを自動で判断し,認識処理を実施しない機能である。音声分析部(雑音・ゴースト除去部)では,観測音声から,雑音や音響ゴーストを抑制し,その後音声の特徴であるメル周波数軸上ケプストラム係数(MFCC)を計算する。その音声の特徴を用いて,音声認識を行うのが,音声認識部である。これらの各モジュールをレジスタトランスファレベル(RTL)により設計をし,動作確認を行った。次に,その各モジュールの消費電力を,上記のサブスレッシュホールド領域での回路デバイスライブラリにより計算した。RTL設計とは,VLSI設計教育研究センタ(VDEC,東京大学)のCADシステムを用いて行った。さらに,その結果を利用した回路シミュレータは,本研究室保有のCADシステムにより行い,低消費電力の評価を行った。これらのトータルシステムをTSMC(0.25μ)により試作を行い,LSIの動作確認を行った。

  • Research Products

    (30 results)

All 2011 2010

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (28 results)

  • [Journal Article] Blind Modulation Detection Using Compensation for Adaptive OFDM Systems2011

    • Author(s)
      Donekeo Lakanchanh, Shingo Yoshizawa, Suthichai Noppanakeepong, Yoshikazu Miyanaga
    • Journal Title

      RISP Journal of Signal Processing

      Volume: Vol.15, No.1 Pages: 65-74

    • Peer Reviewed
  • [Journal Article] VLSI Architecture of MMSE-MIMO Detector and 4x4 MIMO-OFDM Transceiver with 80-MHz Channel Bandwidth2011

    • Author(s)
      Baiko Sai, Shingo Yoshizawa, Yo shikazu Miyanaga
    • Journal Title

      RISP Journal of Signal Processing

      Volume: 15 Pages: 55-64

    • Peer Reviewed
  • [Presentation] Solving the Phase Rotation Optimization Problem by Using Improved GA in OFDM Systems2010

    • Author(s)
      Chusit Pradabpet, Donekeo Lakanchanh, Douangsamone Phetsomphou, Yoshikazu Miyanaga
    • Organizer
      Joint International Information & Communication Technology, Electronic and Electrical Engineering
    • Place of Presentation
      Chanthavinh Resort and Spa, Vientiane, Lao P.D.R
    • Year and Date
      2010-12-21
  • [Presentation] SIMO Detection Performance and Complexity for Correlated and Estimated Rician Fading with Unequal K-Factor2010

    • Author(s)
      Constantin Siriteanu, Yoshikazu Miyanaga
    • Organizer
      Asia-Pacific Signal and Information Processing Association 2010 Annual Summit and Conference
    • Place of Presentation
      Biopolis, Singapore
    • Year and Date
      2010-12-13
  • [Presentation] Next Generation Wireless Communication Systems2010

    • Author(s)
      Yoshikazu Miyanaga
    • Organizer
      Asia-Pacific Signal and Information Processing Association 2010 Annual Summit and Conference
    • Place of Presentation
      Biopolis, Singapore 招待講演
    • Year and Date
      2010-12-13
  • [Presentation] On the Use of RSA and DRA to Improve the Robustness of Continuous Speech Recognition Systems in Adverse Conditions2010

    • Author(s)
      Yiming Sun, Kazunaga OHNUKI, Yoshikazu Miyanaga
    • Organizer
      IEEE International Symposium on Communicatio ns and Information Technologies
    • Place of Presentation
      明治大学, Tokyo, Japan
    • Year and Date
      2010-10-26
  • [Presentation] New Robust Speech Recognition Using DTW in Noise2010

    • Author(s)
      Zhang Yuxin, Yoshikazu Miyanaga, Constantin Siriteanu
    • Organizer
      IEEE International Symposium on Communications and Information Technologies
    • Place of Presentation
      明治大学, Tokyo, Japan
    • Year and Date
      2010-10-26
  • [Presentation] Development of 600 Mbps 2x2 MIMO-OFDM Baseband and RF Transceiver at 5 GHz Band2010

    • Author(s)
      Hisayoshi Kano, Shingo Yoshizawa, Takashi Gunji, Takashi Saito, Yoshikazu Miyanaga
    • Organizer
      IEEE International Symposium on Communicatio ns and Information Technologies
    • Place of Presentation
      明治大学, Tokyo, Japan
    • Year and Date
      2010-10-26
  • [Presentation] Effect of Correlation Between Azimuth Spread and Rician K-Factor on MIMO Performance2010

    • Author(s)
      Xilu Liu, Constantin Siriteanu, Shingo Yoshizawa, Yoshikazu Miyanaga
    • Organizer
      IEEE International Symposium on Communications and Information Technologies
    • Place of Presentation
      明治大学, Tokyo, Japan
    • Year and Date
      2010-10-26
  • [Presentation] VLSI Architecture of V-AMDF based Pitch Detection for Tonal Speech Recognizer2010

    • Author(s)
      J.Chaiwongsai, W.Chiracharit, K.Chamnongthai, Y.Miyanaga, K.Higuchi
    • Organizer
      The 16th Workshop on Synthesis And System Integration of Mixed Information technologies
    • Place of Presentation
      Grand Formosa Regent Taipei, Taipei, Taiwan
    • Year and Date
      2010-10-18
  • [Presentation] Efficient Multiple Regular Expression Matching on FPGAs based on Extended SHIFT-AND Method2010

    • Author(s)
      Yusaku Kaneta, Shingo Yoshizawa, Shin-ichi Minato, Hiroki Arimura, Yoshikazu Miyanaga
    • Organizer
      The 16th Workshop on Synthesis And System Integration of Mixed Information technologies
    • Place of Presentation
      Grand Formosa Regent Taipei, Taipei, Taiwan
    • Year and Date
      2010-10-18
  • [Presentation] Design of Linear MIMO Detectors with Multi-Step Computations for MI MO-OFDM Systems2010

    • Author(s)
      Hirokazu Ikeuchi, Shingo Yoshizawa, Yoshikazu Miyanaga
    • Organizer
      2010 International Workshop on Smart Info-Media Systems in Asia
    • Place of Presentation
      Diamond Hotel, Manila, Philippines
    • Year and Date
      2010-09-08
  • [Presentation] Next Generation Wireless Communication Systems2010

    • Author(s)
      Yoshikazu Miyanaga
    • Organizer
      2010 International Workshop on Smart Info-Media Systems in Asia
    • Place of Presentation
      Diamond Hotel, Manila, Philippines 招待講演
    • Year and Date
      2010-09-08
  • [Presentation] Optimization of Multiple Wordlengths for Low Power Wireless Communication Systems2010

    • Author(s)
      Jaeseong Kim, Shingo Yoshizawa, Yoshikazu Miyanaga
    • Organizer
      2010 IEEE International Symposium on Multimed ia and Communication Technology
    • Place of Presentation
      Diamond Hotel, Manila, Philippines
    • Year and Date
      2010-09-08
  • [Presentation] Study into 802.11n based Iterative MIMO-OFDM Receiver with QC-LDPC Coding2010

    • Author(s)
      Xiaonan Shi, Shingo Yoshizawa, Siriteanu Constantin, Yoshikazu Miyanaga
    • Organizer
      2010 IEEE International Symposium on Multimed ia and Communication Technology
    • Place of Presentation
      Diamond Hotel, Manila, Philippines
    • Year and Date
      2010-09-08
  • [Presentation] A Robust Speech Recognition System with Anti-Symmetric Parks-McClelan Running Spectrum Filtering2010

    • Author(s)
      Yi-ming Xing, Yoshikazu Miyanaga
    • Organizer
      2010 IEEE International Symposium on Multimedia and Communication Technology
    • Place of Presentation
      Diamond Hotel, Manila, Philippines
    • Year and Date
      2010-09-08
  • [Presentation] Combined RSA and DRA For Noise-Robust Continuous Speech Recognition System2010

    • Author(s)
      Yiming Sun, Kazunaga OHNUKI, Yoshikazu Miyanaga, Constantin Siriteanu
    • Organizer
      2010 IEEE International Symposium on Multimedia and Communication Technology
    • Place of Presentation
      Diamond Hotel, Manila, Philippines
    • Year and Date
      2010-09-08
  • [Presentation] A Research on Noise Robust Speech Recognition Using DTW2010

    • Author(s)
      Zhang Yuxin, Yoshikazu Miyanaga, Constantin Siriteanu
    • Organizer
      2010 IEEE International Symposium on Multimedia and Communication Technology
    • Place of Presentation
      Diamond Hotel, Manila, Philippines
    • Year and Date
      2010-09-08
  • [Presentation] A Speech Recognition System with Array Microphone2010

    • Author(s)
      Xihao Sun, Shingo Yoshikazu, Yoshikazu Miyanaga
    • Organizer
      2010 IEEE International Symposium on Multimedia and Communication Technology
    • Place of Presentation
      Diamond Hotel, Manila, Philippines
    • Year and Date
      2010-09-08
  • [Presentation] A PAPR Reduction for MIMO-OFDM System by using Partial Transmit Sequence Technique2010

    • Author(s)
      Douangsamone Phetsomphou, Shingo Yoshizawa, Yoshikazu Miyanaga
    • Organizer
      2010 IEEE International Symposium on Multimed ia and Communication Technology
    • Place of Presentation
      Diamond Hotel, Manila, Philippines
    • Year and Date
      2010-09-08
  • [Presentation] A Study of Correlated Azimuth Spread and Rician K-Factor for a 4x4 MIMO-OFDM System2010

    • Author(s)
      Xilu Liu, Constantin Siriteanu, Shingo Yoshizawa, Yoshikazu Miyanaga
    • Organizer
      2010 IEEE International Symposium on Multimedia and Communication Technology
    • Place of Presentation
      Diamond Hotel, Manila, Philippines
    • Year and Date
      2010-09-08
  • [Presentation] Power Reduction on Dynamic Worldlength and Voltage Scaling for Digital Signal Processing Circuits2010

    • Author(s)
      Mohd Shamian Zainal, Shingo Yoshizawa, Yoshikazu Miyanaga
    • Organizer
      2010 IEEE International Symposium on Multimed ia and Communication Technology
    • Place of Presentation
      Diamond Hotel, Manila, Philippines
    • Year and Date
      2010-09-08
  • [Presentation] Blind Detection of Hybrid PTS-CAPPR Method in OFDM Systems2010

    • Author(s)
      Chusit Pradabpet, Sutud U-thong, Sorawat Chivapreecha, Yoshikazu Miyanaga
    • Organizer
      2010 International Workshop on Information Communication Technology
    • Place of Presentation
      KMITL, Bangkok, Thailand
    • Year and Date
      2010-08-23
  • [Presentation] New Development and Enterprise of Robust Speech Recognition Systems2010

    • Author(s)
      Yoshiyuki Miyazaki, Yoshikazu Miyanaga
    • Organizer
      2010 International Workshop on Information Communication Technology
    • Place of Presentation
      KMITL, Bangkok, Thailand
    • Year and Date
      2010-08-23
  • [Presentation] Effects of Correlated Azimuth Spread and K-Factor on ZF and MMSE Detection Performance for a Generic MIMO System2010

    • Author(s)
      Xiaonan Shi, Constantin Siriteanu, Yoshikazu Miyanaga, Shingo Yoshizawa, Xilu Liu
    • Organizer
      2010 International Workshop on Information Communication Technology
    • Place of Presentation
      KMITL, Bangkok, Thailand
    • Year and Date
      2010-08-23
  • [Presentation] An individual partial transmit sequence technique for PAPR reduction in MIMO-OFDM System2010

    • Author(s)
      Douangsamone Phetsomphou, Chusit Pradabpet, Shingo Yoshizawa, Yoshikazu Miyanaga
    • Organizer
      2010 International Workshop on Information Communication Technology
    • Place of Presentation
      KMITL, Bangkok, Thailand
    • Year and Date
      2010-08-23
  • [Presentation] Optimal Power Reduction on Wireless OFDM Receiver2010

    • Author(s)
      Mohd Shamian Zainal, Shingo Yoshizawa, Yoshikazu Miyanaga
    • Organizer
      IEEE Region 8 SIBIRCON-2010
    • Place of Presentation
      Irkutsk Listvyanka, Russia
    • Year and Date
      2010-07-11
  • [Presentation] Smart Antenna Performance and Complexity for Estimated Rician Fading with Correlated Azimuth Spread and K-Factor2010

    • Author(s)
      Constantin Siriteanu, Yoshikazu Miyanaga, Steven D.Blostein
    • Organizer
      International Conference on Green Circuits and S ystems
    • Place of Presentation
      Regal Shanghai East Asia Hotel, Shanghai, China
    • Year and Date
      2010-06-21
  • [Presentation] Phase Rotation Optimization in Hybrid of PTS-CAPPR Method by GA for PAPR Reduction in OFDM Systems2010

    • Author(s)
      Chusit Pradabpet, Shingo Yoshizawa, Yoshikazu Miyanaga
    • Organizer
      International Conference on Green Circuits and Systems
    • Place of Presentation
      Regal Shanghai East Asia Hotel, Shanghai, China
    • Year and Date
      2010-06-21
  • [Presentation] Scalable Pipeline Architecture of MMSE MIMO Detector for 4x4 MIMOOFDM Receiver2010

    • Author(s)
      Shingo Yoshizawa, Hirokazu Ikeuchi, Yoshikazu Miyanaga
    • Organizer
      IEEE International Symposium on Circuits and Systems
    • Place of Presentation
      Disney Hotel New York, Paris, France
    • Year and Date
      2010-05-30

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Published: 2012-07-19  

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