RTP Timestamp Frequency for Variable Rate Audio Codecs
draft-ietf-avt-variable-rate-audio-00
| Document | Type |
Expired Internet-Draft
(avt WG)
Expired & archived
|
|
|---|---|---|---|
| Authors | Stephan Wenger , Colin Perkins | ||
| Last updated | 2004-10-19 | ||
| RFC stream | Internet Engineering Task Force (IETF) | ||
| Intended RFC status | (None) | ||
| Formats | |||
| Additional resources | Mailing list discussion | ||
| Stream | WG state | WG Document | |
| Document shepherd | (None) | ||
| IESG | IESG state | Expired | |
| Consensus boilerplate | Unknown | ||
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
This memo discusses the problems of audio codecs with variable external sampling rates. Historically, for audio codecs, the RTP timestamp frequency was chosen to match the sampling rate of the audio codec. However, this choice is nowadays more difficult to justify, because of the advent of audio codecs (and, even more important, practical use cases) that support multiple sample rates and the switch between the sample rates during the lifetime of an RTP session. This Internet draft addresses the problem by suggesting that RTP Payload RFCs for such codecs to utilize a single, high, unified RTP timestamp frequency.
Authors
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)