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From: jpcampb@afterlife.ncsc.mil (Joe Campbell)
Subject: Re: CELP Tech Info. Bulletin
Message-ID: <1994Jun20.045450.4340@afterlife.ncsc.mil>
Organization: The Great Beyond
References: <CrK02r.L5v@world.std.com>
Date: Mon, 20 Jun 1994 04:54:50 GMT
Lines: 68

In article <CrK02r.L5v@world.std.com>, ray dzurney <rayd@world.std.com> wrote:
>Greetings:
>
>   I have downloaded the CELP 3.2a file (celp_3.2a.tar.Z) from super.org and 
>am trying to print/view the Technical Information Bulletin contained within.
>The problem is that this file is in a format that is unfamiliar to me
>(celp.tib.sea.hqx). Is this called a ".hqx" file? What is ".hqx"? It appears to
>be a binary file.  Could anyone please tell me how to view/print this file or 
>if a text version of the TIB exists anywhere?  Any responses are greatly 
>appreciated.  Thanks in advance.

Hi Ray,

I apologize for not including the following as a README file to
in the doc directory.

You will need to be able to view Macintosh Microsoft Word
and Canvas documents.  First, the *.hqx file needs to be
unbinhex'ed (StuffIt Expander for the Mac does this nicely).
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.
 
Happy CELPing,
Joe
-- 
.............................................................................
; Dr. Campbell  N3JBC  jpcampb@afterlife.ncsc.mil  74040.305@compuserve.com ;
; Speaking for myself     Happiness = Reality - Expectations, Click & Clack ;
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