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Path: bloom-beacon.mit.edu!hookup!swrinde!ihnp4.ucsd.edu!library.ucla.edu!news.mic.ucla.edu!unixg.ubc.ca!wrob
From: wrob@unixg.ubc.ca (Robert Wong)
Newsgroups: comp.dcom.modems,comp.dcom.fax,comp.answers,news.answers
Subject: ZyXEL modem FAQ List v3.6, Feb 28 1994, Part 4 of 5 [Info Sources]
Supersedes: <2f94jq$o6a@nnrp.ucs.ubc.ca>
Followup-To: comp.dcom.modems
Date: 3 Mar 1994 09:19:31 GMT
Organization: University of British Columbia, Vancouver, B.C., Canada
Lines: 455
Sender: wrob@unixg.ubc.ca
Approved: news-answers-request@MIT.Edu
Expires: Fri, 25 March 1994 00:00:00 GMT
Message-ID: <2l4a33$6mj@nnrp.ucs.ubc.ca>
NNTP-Posting-Host: unixg.ubc.ca
Summary: Contains listing of sources where more information/files/etc. about
ZyXEL modems can be found. Anonymous FTP sites, mail servers, and
mailing lists are enumerated. Possible references to CELP compression
are also listed.
Keywords: ZyXEL FAQ FTP
Xref: bloom-beacon.mit.edu comp.dcom.modems:29298 comp.dcom.fax:4933 comp.answers:4012 news.answers:15973
Archive-name: modems/ZyXEL/FAQ/part4
Last-modified: 1993/12/20
Version: 3.6
Posting-frequency: monthly;the third Monday of every month
ZyXEL Modems
Frequently Asked
Questions List
Version 3.5
Archived at: rtfm.mit.edu in
/pub/usenet/news.answers/modems/ZyXEL/FAQ/part[1-5]
Please mail any additions to: wrob@unixg.ubc.ca
=================
Table of Contents
=================
I. Information Sources
I.1 FTP servers known to Carry ZyXEL info
I.2 Mail servers known to carry ZyXEL info
I.3 Known mailing lists dealing with ZyXEL modems
I.4 ZyXEL's CELP compression mode for voice
================================================================================
I. Information Sources
================================================================================
I.1 FTP servers known to Carry ZyXEL info
--------------------------------------------------------------------------------
ftp.csie.nctu.edu.tw mirror of ZyXEL (Taiwan) BBS
Look in /ZyXEL
cca.camb.com Mirror of ftp.csie.nctu.edu.tw
ftp.sdsc.edu ZyXEL USA FTP site
Look in /pub/other/zyxel
Contains latest official roms and
software. (Not intended to replace
the ZyXEL BBS, which has a much wider
array of available files.)
grind.isca.uiowa.edu Look in /info/ZyXEL
iacrs1.unibe.ch Look in /pub/ZyXEL
another mirror of ZyXEL, Taiwan
ftp.cd.chalmers.se Look in /pub/zyxel
Same info as above sites, with more
files from ZyXEL, USA BBS and
more voicemail programs
ftp.luth.se ROM images, files, info, etc.
Look in /pub/misc/zyxel
ftp.cs.psu.edu Look in /pub/fenner/ZyXEL
Owner says: odd tibits, etc. Usually
no ROM images.
ftp.twi.tudelft.nl Look in /pub/ZyXEL
Eprom images, zfax, FAQ and other
goodies
kaiwan.com Look in /pub/ZyXEL.US.bbs.mirror
Contains files from ZyXEL BBS
sgi.com Look in /sgi/modems
Contains file called: fix-zyxel
(mirrored on wuarchive.wustl.edu)
Replacement files for /usr/lib/uucp
and /etc (gettydefs) to use ZyXELs
Look in /sgi/fax
Contains FlexFAX software (v2.1.0)
shape.mps.ohio-state.edu Look in pub/netfax-zyxel
Contains netfax patches for ZyXELs
sparco.com Look in /pub/sparco
Contains pricing and order info for
Sparco, a ZyXEL mail-order vendor
129.26.9.88 (name unknown) Look in /usr/pub/zyxel/ibm/jhb
Contains beta version of PD voicemail
program for PC
Germany:
dsrbg2.informatik.tu-muenchen.de Look in /physik/ZyXEL
Contents similar to ftp.luth.se
faramir.informatik.uni-oldenburg.de Look in /pub/amiga/incoming/zyxel
pretty much a mirror of ROM images,
etc.
quepasa.cs.tu-berlin.de Look in /pub/atari/modem
File called: zyxelinf.lzh
rusmv1.rus.uni-stuttgart.de Look in /pub/soft/pc/comm/zyxel
sun.rz.tu-clausthal.de Look in /pub/atari/telecomm
File called: zyxelinf.lzh
**********************
MAC FILES...
FILE: ara-zyxel-u1496e.hqx
biom3.univ-lyon1.fr (134.214.100.42)
Location: /pub/mac/comm
akiu.gw.tohoku.ac.jp (130.34.8.9)
Location: /pub/mac/comm/CTB
uhunix2.uhcc.hawaii.edu (128.171.44.7)
Location: /mirrors/info-mac/comm
wuarchive.wustl.edu (128.252.135.4)
Location: /mirrors2/info-mac/comm
utsun.s.u-tokyo.ac.jp (133.11.11.11)
Location: /ftpsync/info-mac/comm
sumex-aim.stanford.edu (36.44.0.6)
Location: /Volume1/info-mac/comm
sics.se (192.16.123.90)
Location: /pub/info-mac/comm
pinus.slu.se (130.238.98.11)
Location: /pub/mac/comm
sally.informatik.rwth-aachen.de (137.226.112.172)
Location: /pub/rz.archiv/simtel/info-mac/comm
swdsrv.edvz.univie.ac.at (131.130.1.4)
Location: /mac/info-mac/comm
ftp.uu.net (137.39.1.9)
Location: /systems/mac/info-mac/comm
lth.se (130.235.20.3)
Location: /pub/mac/info-mac/comm
metten.fenk.wau.nl (137.224.129.4)
Location: /info-mac/comm
nic.switch.ch (130.59.1.40)
Location: /mirror/info-mac/comm
**********************
FILE: zyxel.sit.hqx
wuarchive.wustl.edu (128.252.135.4)
Location: /mirrors3/archive.umich.edu/mac/util/comm/ara
garbo.uwasa.fi (128.214.87.1)
Location: /mirror/umich.macarchive/util/comm/ara
**********************
FILE: ara-zyxel-u1496.hqx
akiu.gw.tohoku.ac.jp (130.34.8.9)
Location: /pub/mac/comm/CTB
uhunix2.uhcc.hawaii.edu (128.171.44.7)
Location: /mirrors/info-mac/comm
wuarchive.wustl.edu (128.252.135.4)
Location: /mirrors2/info-mac/comm
sumex-aim.stanford.edu (36.44.0.6)
Location: /Volume1/info-mac/comm
*********************
MISC. MACINTOSH FILES...
wuarchive.wustl.edu (128.252.135.4)
Location: /mirrors3/archive.umich.edu/mac/util/comm/ara
FILE: zyxelu1496.sit.hqx
pollux.lu.se (130.235.132.89)
Location: /pub/mac/comm
FILE: ara-zyxel-u1496.cpt.hqx
garbo.uwasa.fi (128.214.87.1)
Location: /mirror/umich.macarchive/util/comm
FILE: comm/arazyxel.sit.hqx
Amiga FTP (AmiNet) sites:
*************************
Australia
splat.aarnet.edu.au 192.107.107.6 (*)
(*) closed 6:30am to 4pm weekdays
Germany
ftp.uni-kl.de 131.246.9.95
ftp.uni-erlangen.de 131.188.1.43
ftp.cs.tu-berlin.de 130.149.17.7
ftp.th-darmstadt.de 130.83.55.75
ftp.uni-paderborn.de 131.234.2.32
Switzerland
litamiga.epfl.ch 128.178.151.32
Scandinavia
ftp.luth.se 130.240.16.3
USA
ftp.wustl.edu 128.252.135.4
merlin.etsu.edu 192.43.199.20
wcarchive.cdrom.com 192.153.46.2
--------------------------------------------------------------------------------
I.2 Mail servers known to carry ZyXEL info
--------------------------------------------------------------------------------
questor.org
send mail to 'mail-server@questor.org' with a body of 'HELP' to
get instructions
--------------------------------------------------------------------------------
I.3 Known mailing lists dealing with ZyXEL modems
--------------------------------------------------------------------------------
zyxel-programmers@sfu.ca
Please send all subscription/cancellation requests to
owner-zyxel-programmers@sfu.ca
--------------------------------------------------------------------------------
I.4 ZyXEL's CELP compression mode for voice
--------------------------------------------------------------------------------
CELP compression is currently available only on plus model modems. The
implementation of CELP in the ZyXEL plus model modems is proprietary. As such,
ZyXEL has not published any information regarding the manual decoding/encoding
using this method. ZyXEL also will not confirm nor deny that the sources
listed below will further elucidate the CELP decoding/encoding algorithms.
Listing all the US Federal Standard 1016 sources is probably not too useful.
The numerous pages of USFS descriptions do not help in decoding ZyXEL's CELP.
They may help to understand what ZyXEL's CELP C code basically does. The
USFS 1016 descriptions are nice to learn about what CELP *could* do ;-)
For further understanding of CELP, it needs a real mathematician and deeper
knowledge of voice processing theories.)
Some related material is available from the following sources:
TITLE="Coded-Excited Linear Prediction (CELP): High-Quality Speech
at Very Low Bit Rates"
AUTHOR="M. R. Schroeder and B. S. Atal"
BOOKTITLE="Proc. IEEE Int'l Conf. on Acoust., Speech and Signal Processing"
YEAR="1985"
PAGES="937-940"
MONTH="April"
*****
US Federal Standard 1016 availability
-------------------------------------
From: jpcampb@afterlife.ncsc.mil (Joe Campbell)
The U.S. DoD's Federal-Standard-1016 based 4800 bps code excited linear
prediction voice coder version 3.2 (CELP 3.2) Fortran and C simulation
source codes are 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.
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 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 Conference on Acoustics, Speech, and
Signal Processing, 1986, p. 473-6.
Copies of 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 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
(202)755-0325
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
1-617-275-3733
1-617-275-4323 (fax)
dspse.bedford@channel1.com
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
(408)773-1042
(408)736-3451 (fax)
From: tobiasr@monolith.lrmsc.loral.com (Richard Tobias)
For U.S. FED-STD-1016 (4800 bps CELP) _realtime_ DSP code and
information about products using this code using the AT&T DSP32C and
AT&T DSP3210, contact:
White Eagle Systems Technology, Inc.
1123 Queensbridge Way
San Jose, CA 95120
(408) 997-2706
(408) 997-3584 (fax)
rjjt@netcom.com
From: Cole Erskine <cole@analogical.com>
[paraphrased]
Analogical Systems has a _real-time_ multirate implementation of U.S.
Federal Standard 1016 CELP operating at bit rates of 4800, 7200, and
9600 bps on a single 27MHz Motorola DSP56001. Source and object code
is available for a one-time license fee.
FREE, _real-time_ demonstration software for the Ariel PC-56D is
available for those who already have such a board by contacting
Analogical Systems. The demo software allows you to record and
playback CELP files to and from the PC's hard disk.
Analogical Systems
2916 Ramona Street
Palo Alto, CA 94306
Tel: +1 (415) 323-3232
FAX: +1 (415) 323-4222
*****
Package: CELP 3.2 (U.S. Fed-Std-1016 compatible coder)
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 3.2 (CELP 3.2) Fortran and
C simulation source codes.
Contact: Joe Campbell <jpcampb@afterlife.ncsc.mil>
Availability: Anoymous ftp to furmint.nectar.cs.cmu.edu (128.2.209.111):
celp.audio.compression (C src in celp.audio.compression/celp32c).
Thanks to Vince Cate <vac+@cs.cmu.edu> for providing this site :-)
The CELP release package is also available, at no charge,
on DOS disks from:
Bob Fenichel
National Communications System, Washington, D.C. 20305, USA
Ph: 1-703-692-2124 Fax: 1-703-746-4960
The following documents are vital to successful real-time
implementations and they are also available from Bob Fenichel
(they're unavailable electronically):
"Details to Assist in Implementation of Federal Standard 1016
CELP," National Communications System, Office of Technology &
Standards, 1992. Technical Information Bulletin 92-1.
"Telecommunications: Analog-to-Digital Conversion of Radio
Voice by 4,800 bit/second Code Excited Linear Prediction
(CELP)," National Communications System, Office of
Technology & Standards, 1991. Federal Standard 1016.
================================================================================
--
Robert Wong Jr.
1921 East 61st Avenue, Vancouver, B.C., Canada, V5P 2K2, (604) 322-6918
wrob@unixg.ubc.ca
Keeper of the ZyXEL FAQ and Head of the UBC-NeXT Users Group
Standard disclaimers apply.
--
Robert W. Wong Jr. wrob@unixg.ubc.ca (ASCII only)
Crasher of Automated Banking Machines, Keeper of the ZyXEL modem FAQ,
University of British Columbia NeXT Users Group Leader and
collector of titles.