Spoken Language Processing Lab.

　

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Prof. Yuan-Fu Liao
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Overview:

Spoken language is the most natural, powerful and universal human-machine/computer interface. Therefore our focus is to make speech recognition more robust in our daily life. To demonstrate the concept and our research results, a spoken dialog-based multimedia retrieval prototype will be built to integrate both voice and data services under internet environment.

Research Direction:

Annual Speech Processing Workshop:

Group Project Link:

Demonstration:New~~                            Hot ~~~

  Projects

  Undergraduate Projects

  • Speech recognition-enabled automatic telephone directory assistant system for National Taipei University of  Technology    (NTUT's 104 directory assistant service ) 

                          Demo      Call Statistics

    NTUT's extension number  5104 =  NTUT's 104 directory assistant service ( +886-2-27712171 ext. 5104)

    Example: You  want to find committee Cai-Jia Chun " 電子系主任賴柏洲" (dian  zi xi zhu ren lai bo zhou)，you can use the following four methods 

    • Example 1: call extension 5104，speak ”賴柏洲 ” (lai bo zhou)
    • Example 2: call extension 5104，speak ”電子系賴柏洲 ” (dian zi xi lai bo zhou)
    • Example 3: call extension 5104，speak ”電子系主任 ” (dian zi xi xhu ren)
    • Example 4: call extension 5104，speak ”電子系 ” (dian zi xi)

     

  • (Phone book.txt) and (Phone_book.xls)  (the first column:  names or department,  the second column: pronunciations,  the third column:  extensions of  telephone system). (Update: 2006/01/26)

    corresponding person :Zhi-Ren Zeng , email : s9360382@yahoo.com.tw  extension:2247, cell-phone:0919550114

  • Communication Platform for Distributed Speech Recognition(DSR) VoIP. Text Chat & Face Simulation   

                            Windows video (wmv, 20.1M, Mandarin)          

                            Prof. Sagayama, Tokyo Univ. visit our demo  

                            Take photos with Lab. members   

  • Speaker Verification Security System

                        Demo   

                             Prof. Fujisaki, Tokyo Univ. visit our demo  

  • Multi modal spoken dialog system-based multimedia retrieval system

                           Windows video (wmv, 15.8M, Mandarin)

  • Voice over IP (VOIP) system and real-time ETSI extended advanced DSR front-end codec (ETSI ES 208 212)

                          Windows video (wmv, 20.4M, Mandarin)

  Communication DSP Lab.

  • OFDM Transmitter and Receiver Implementation Using DSK6416

                         Demo

  • DSP-based OFDM 語音即時通訊系統

                        Demo

  • OFDM通訊系統封包同步處理與無線通道模擬DSP實作

                  Demo

  • 以分散式語音辨認為基礎之網路電話語音自動總機

                  Demo

Latest Poster&Presentation:

                           

                       A Reference Model Weighting-based Method for Robust Speech Recognition

                       Multimedia Network Communicate Platform

                       Latent Prosody Analysis for Robust Speaker Identification

                       Test Norm-Based Speaker Verification Security System

Lab. Overview:

  • Speech Processing (Speech)

  • Overview：
    • Cooperation with NCTU speech lab., professor Sin-Horng, Chen and professor Yi-Ru, Wang
    • National Science Council (NSC) 3 years project (2004.8~2007.7)"Robust speaker verification for spoken dialogue system "
    • NCTU's ITS project, spoken dialogue system using galaxy communicator
  • Graduate student: four
  • Undergraduate: student: seven
  • Workstation: seven
  • Dialog Card: two
  • Pictures: 

   

    Linux workstation                   Lab                       Meeting Room

  • Teaching:

    • Digital signal processing
      • Digital signal processing laboratory
        • TI DSK6711
    • Speech processing
    • Random processing
    • Communication signal processing
      • Communication signal processing lab.
        • TI DSK6416 + Signalware AED-101 80M Wideband AD/DA

         

  • Communication/Digital Signal Processing (CommDSP/DSP Lab.)

  • Overview：
    • Dsk6711：twenty
    • Dsk6416：thirty
    • Evm6701：two
    • Course
      • Communication  signal  processing laboratory (graduate)
      • Digital signal processing laboratory (undergraduate)
     
    1. Communication  Signal  Processing  laboratory

                     Demo

  • Overview of TI  DSK6416
    code composer studio, DSP/Bios
  • Real-time/Embedded DSP framework
  • Vocoder (GSM6.10)
  • Convolution code and Viterbi decoding
  • QAM baseband Transmitter/Receiver, Timing synchronization, vocoder
  • Channel Model
    AWGN, multipath fading channel
  • OFDM baseband Transmitter/Receiver, FFT, Frequency/Phase synchronization
    Channel Estimation, Scrambler/interleaver, Convolution code/Viterbi decoder
  • Digital signal processing laboratory
  • Overview of TI DSK6711
  • AM modulation and demodulation
  • EMIF and memory
  • Timer and interrupt service
  • DMA
  • Calling assembly language function from C language (optional)
  •  Sound recording and playing
  •  Data transfer between PC and DSK (optional)
  • FFT
  • Embedded system
  • Karaoke effect (changing  voice, echo)
  • Digital filter (equalizer)
  • Music synthesis

Server:

 

Contact Information

Tel.
+886-2-2771-2171 ext. 2247
Fax
+886-2-2731-7120
Address
1, Sec. 3, ChungHsiao E. Rd. Taipei, Taiwan (National Taipei University of  Technology  composite accommodation  406)
Email

Please send any comments to yfliao@ntut.edu.tw
Copyright(C) 2002 Speech Lab., Department of Electronic Engineering, National Taipei University of Technology
Latest update：2008/07/09