Newsgroups: comp.speech,comp.compression
Path: cantaloupe.srv.cs.cmu.edu!das-news.harvard.edu!news2.near.net!MathWorks.Com!zombie.ncsc.mil!romulus.ncsc.mil!afterlife!jpcampb
From: jpcampb@afterlife.ncsc.mil (Joe Campbell)
Subject: Re: HELP: CELP32C
Message-ID: <1994Sep23.045327.27976@afterlife.ncsc.mil>
Organization: The Great Beyond
References: <CwGxBK.Fp1@eng_ser1.erg.cuhk.hk>
Date: Fri, 23 Sep 1994 04:53:27 GMT
Lines: 65
Xref: glinda.oz.cs.cmu.edu comp.speech:3363 comp.compression:14551

In article <CwGxBK.Fp1@eng_ser1.erg.cuhk.hk>,
Chen_Yan <ychen@ee.cuhk.hk> wrote:
>
>	I've got the celp32c.tar.Z file. However, I dunno how to read
>the documentary file celp.tib which is decoded from .HQX file.  Besides,
>how can I listen to those *.spd files enclosed?

Hi Chen,
In the next release, we'll have something
readable on a Sun, e.g., PostScript.  Until then, please
find a Macintosh that can import Microsoft Word and Canvas
documents.  As you presume, the file needs to be unbinhex'ed.
The result will be a self-extracting archive (Mac executable)
that can be double clicked to uncompress the Word and Canvas
documents.  Unfortunately, Figures 12, 13, and 15 are missing
from this release, but will be scanned and included in the next
release.
 
I recommend that you acquire the NCS's official hardcopy
version of the TIB (which is complete):
 
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)"
 
This is available through the National Technical Information Service:
 
NTIS
U.S. Department of Commerce
5285 Port Royal Road
Springfield, VA  22161
USA
(703) 487-4650
 
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.)
 
The following article is also helpful:
 
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.

The format of the spd files is common 8 kHz, 16 bit samples in
high byte|low byte order.  This is just like headerless
Entropic's ESPS/waves+ speech data files.

Enjoy,
Joe
-- 
_____________________________________________________________________________
| Dr. Campbell  N3JBC  jpcampb@alpha.ncsc.mil   jpcampb@afterlife.ncsc.mil  |
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