[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Audio/Video Transport Working Group of the IETF.
Title : RTP Payload Format for EVRC and SMV Vocoders
Author(s) : A. Li
Filename : draft-ietf-avt-evrc-smv-01.txt
Pages : 20
Date : 16-May-02
This document describes the RTP payload format for Enhanced Variable
Rate Codec (EVRC) Speech and Selectable Mode Vocoder (SMV) Speech.
Two sub-formats are specified for different application scenarios. A
bundled/interleaved format is included to reduce the effect of packet
loss on speech quality and amortize the overhead of the RTP header
over more than one speech frame. A non-bundled format is also
supported for conversational applications.
A URL for this Internet-Draft is:
To remove yourself from the IETF Announcement list, send a message to
ietf-announce-request with the word unsubscribe in the body of the message.
Internet-Drafts are also available by anonymous FTP. Login with the username
"anonymous" and a password of your e-mail address. After logging in,
type "cd internet-drafts" and then
A list of Internet-Drafts directories can be found in
Internet-Drafts can also be obtained by e-mail.
Send a message to:
In the body type:
NOTE: The mail server at ietf.org can return the document in
MIME-encoded form by using the "mpack" utility. To use this
feature, insert the command "ENCODING mime" before the "FILE"
command. To decode the response(s), you will need "munpack" or
a MIME-compliant mail reader. Different MIME-compliant mail readers
exhibit different behavior, especially when dealing with
"multipart" MIME messages (i.e. documents which have been split
up into multiple messages), so check your local documentation on
how to manipulate these messages.
Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the