Comp.Speech Frequently Asked Questions

The Frequently Asked Questions (FAQ) is a regular posting to comp.speech which attempts to answer some of the regular questions in the comp.speech newsgroup. It covers speech synthesis, speech recognition, speech coding and a range of related material. It contains lists of speech technology software and hardware, including commerical products, public domain and freeware software, plus it contains over 500 links to speech technology sites and software.

The FAQ is not meant to discuss any topic exhaustively. It will hopefully provide readers with pointers on where to find useful information, especially material available on the Internet.

If you have not already read the Usenet introductory material posted to news.announce.newusers, please do. For help with FTP (file transfer protocol) look for a regular posting of anonymous FTP FAQ in comp.misc, comp.archives.admin or news.answers.

This FAQ is posted every 4 weeks to comp.speech, comp.answers and news.answers.

It is also available on the World Wide Web:

Or by anonymous ftp from the comp.speech archive site:

Or from the news.answers ftp site (and its mirrors):

Or by sending email to with the following line in the body of the message:

If you only have email access to the internet, then I suggest you obtain the Internet-by-email guide. Send email to with the following line in the body of the message:


Minor changes each month. Thanks to all the companies and individuals who send in information.


Hundreds of people and companies have made contributions to the comp.speech FAQ over the last few years - too many to name individually. Special thanks go to Tony Robinson and Kevin Lenzo who have provided a wide range of information and assistance. Tony Robinson also maintains the comp.speech ftp site which is an excellent resource for all people working with speech technology. I am grateful to the people at Sydney University, Cambridge University, ATR ITL and CMU for supporting the FAQ on their WWW sites.


The comp.speech FAQ and WWW pages are provided as is without any express or implied warranties. While every effort has been taken to ensure the accuracy of the information presented here, the author assumes no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein.
The comp.speech FAQ and WWW pages should not be construed as representing the views or products of my employer, Sun Microsystems, Inc.

Copyright and Reproduction

Copyright (c) 1994-6 by Andrew Hunt, all rights reserved.
The comp.speech FAQ posting may not be distributed for financial gain.
The comp.speech FAQ posting may not be included in any collections or compilations without express permission from the author.
The comp.speech FAQ posting may be posted to any USENET newsgroup, on-line service, or BBS as long as it is posted in its entirety with this copyright statement, and that a current version is always maintained.
[Note: hyperlinks to the comp.speech WWW pages are encouraged.]


The FAQ posting and the Comp.Speech WWW Site are maintained on a volunteer basis by

Andrew Hunt
Speech Applications Group, Sun Microsystems Laboratories
Two Elizabeth Drive, Chelmsford, MA, 01824-4195, USA
Ph: (508) 442 2681 Fax: (508) 250 5067

Last Revision: 18:41 05-Sep-1997