comp_sp.faq

4.8k/s速率FS1016标准语音压缩源码

NOTE: THE SRC's ANONYMOUS FTP SERVER HAS BEEN RENAMED TO:  ftp.super.org

From comp.speech FAQ September 1994 (does not cover CELP 3.3):

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  Q3.3: WHAT SPEECH COMPRESSION/CODING SOFTWARE IS AVAILABLE?
  
...


    CELP 3.2a & LPC
     * Platform: Sun (the makefiles & source can be modified for other
       platforms)
     * Description: CELP is lossy compression technqiue. The U.S. DoD's
       Federal-Standard-1016 based 4800 bps code excited linear
       prediction voice coder version 3.2a (CELP 3.2a) Fortran and C
       simulation source codes. Available for worldwide distribution (on
       DOS diskettes, but configured to compile on Sun SPARC stations)
       from NTIS and DTIC. Example input and processed speech files are
       included. A Technical Information Bulletin (TIB), "Details to
       Assist in Implementation of Federal Standard 1016 CELP," and the
       official standard, "Federal Standard 1016, Telecommunications:
       Analog to Digital Conversion of Radio Voice by 4,800 bit/second
       Code Excited Linear Prediction (CELP)," are also available.
     * Availability 1: Through the National Technical Information
       Service:
    NTIS
    U.S. Department of Commerce
    5285 Port Royal Road, Springfield, VA 22161, USA
   
       The "AD" ordering number for the CELP software is AD M000 118 (US$
       90.00) and for the TIB it's AD A256 629 (US$ 17.50). The LPC-10
       standard, described below, is FIPS Pub 137 (US$ 12.50). There is a
       $3.00 shipping charge on all U.S. orders. The telephone number for
       their automated system is 703-487-4650, or 703-487-4600 if you'd
       prefer to talk with a real person.
       
       (U.S. DoD personnel and contractors can receive the package from
       the Defense Technical Information Center: DTIC, Building 5,
       Cameron Station, Alexandria, VA 22304-6145. Their telephone number
       is 703-274-7633.)
     * Availability 2: By anonymous ftp from:
          + ftp://ftp.super.org(192.31.192.1)/pub/celp_3.2a.tar.Z
          + OR
            ftp://svr-ftp.eng.cam.ac.uk/comp.speech/sources/celp_3.2a.tar
            .Z
     * Misc: The following articles describe the Federal-Standard-1016
       4.8-kbps CELP coder (it's unnecessary to read more than one):
          + Campbell, Joseph P. Jr., Thomas E. Tremain and Vanoy C.
            Welch, "The Federal Standard 1016 4800 bps CELP Voice Coder,"
            Digital Signal Processing, Academic Press, 1991, Vol. 1, No.
            3, p. 145-155.
          + Campbell, Joseph P. Jr., Thomas E. Tremain and Vanoy C.
            Welch, "The DoD 4.8 kbps Standard (Proposed Federal Standard
            1016)," in Advances in Speech Coding, ed. Atal, Cuperman and
            Gersho, Kluwer Academic Publishers, 1991, Chapter 12, p.
            121-133.
          + Campbell, Joseph P. Jr., Thomas E. Tremain and Vanoy C.
            Welch, "The Proposed Federal Standard 1016 4800 bps Voice
            Coder: CELP," Speech Technology Magazine, April/May 1990, p.
            58-64.
   
       The U.S. DoD's Federal-Standard-1015/NATO-STANAG-4198 based 2400
       bps linear prediction coder (LPC-10) was republished as a Federal
       Information Processing Standards Publication 137 (FIPS Pub 137).
       It is described in:
          + Thomas E. Tremain, "The Government Standard Linear Predictive
            Coding Algorithm: LPC-10," Speech Technology Magazine, April
            1982, p. 40-49.
   
       There is also a section about FS-1015 in the book:
          + Panos E. Papamichalis, Practical Approaches to Speech Coding,
            Prentice-Hall, 1987.
   
       The voicing classifier used in the enhanced LPC-10 (LPC-10e) is
       described in:
          + Campbell, Joseph P., Jr. and T. E. Tremain, "Voiced/ Unvoiced
            Classification of Speech with Applications to the U.S.
            Government LPC-10E Algorithm," Proceedings of the IEEE
            International Conf. on Acoustics, Speech, and Signal
            Processing, 1986, p. 473-6.
   Copies of the official standard, "Federal Standard 1016, Tele-
       communications: Analog to Digital Conversion of Radio Voice by
       4,800 bit/second Code Excited Linear Prediction (CELP)" are
       available for US$ 5.00 each from:
    GSA Federal Supply Service Bureau
    Specification Section, Suite 8100
    470 E. L'Enfant Place, S.W.
    Washington, DC 20407
    [phone]
   Realtime DSP code for FS-1015 and FS-1016 is sold by:
    John DellaMorte, DSP Software Engineering
    165 Middlesex Tpk, Suite 206, Bedford, MA 01730, USA
    Ph: 1-617-275-3733 Fax: [phone]
    [e-mail]
   DSP Software Engineering's FS-1016 code can run on a DSP Research's
       Tiger 30 (a PC board with a TMS320C3x and analog interface suited
       to development work).
    DSP Research
    1095 E. Duane Ave, Sunnyvale, CA 94086, USA
    Ph: [phone] Fax: [phone]
    
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