RE: [AVT] Protocol Action: 'RTP Payload Format for BroadVoice Speech Codecs' to Proposed Standard
"Raymond (Juin-Hwey) Chen" <rchen@broadcom.com> Thu, 09 June 2005 17:43 UTC
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Subject: RE: [AVT] Protocol Action: 'RTP Payload Format for BroadVoice Speech Codecs' to Proposed Standard
Date: Thu, 09 Jun 2005 10:43:00 -0700
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Thread-Topic: [AVT] Protocol Action: 'RTP Payload Format for BroadVoice Speech Codecs' to Proposed Standard
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From: "Raymond (Juin-Hwey) Chen" <rchen@broadcom.com>
To: Mike <mike_dsp@hotmail.com>, avt@ietf.org
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The source codes for the BroadVoice speech codecs are available for licensing. Raymond -----Original Message----- From: avt-bounces@ietf.org [mailto:avt-bounces@ietf.org] On Behalf Of Mike Sent: Tuesday, June 07, 2005 5:59 AM To: avt@ietf.org Subject: Re: [AVT] Protocol Action: 'RTP Payload Format for BroadVoice Speech Codecs' to Proposed Standard Is source code for the BroadVoice Speech codec readily available? Thank you. ----- Original Message ----- From: "The IESG" <iesg-secretary@ietf.org> To: "IETF-Announce" <ietf-announce@ietf.org> Cc: "avt chair" <magnus.westerlund@ericsson.com>; "avt chair" <csp@csperkins.org>; "Internet Architecture Board" <iab@iab.org>; "avt mailing list" <avt@ietf.org>; "RFC Editor" <rfc-editor@rfc-editor.org> Sent: Monday, May 30, 2005 7:12 PM Subject: [AVT] Protocol Action: 'RTP Payload Format for BroadVoice Speech Codecs' to Proposed Standard > The IESG has approved the following document: > > - 'RTP Payload Format for BroadVoice Speech Codecs ' > <draft-ietf-avt-rtp-bv-04.txt> as a Proposed Standard > > This document is the product of the Audio/Video Transport Working Group. > > The IESG contact persons are Allison Mankin and Jon Peterson. > > Technical Summary: > > This specification describes an RTP payload format for the BroadVoice > (TM) speech codec. It is a very straight-forward payload format, with > one or more frames of coded speech data being placed into each RTP > packet with no additional framing. Definitions to allow the use of > this format with SDP and MIME are provided. > > Working Group Summary: > > The working group supported advancing this specification. > The IETF has received a request from Cablelabs to publish this > specification quickly. > > Protocol Quality: > > The BroadVoice(TM) codec is likely to see widespread use in certain > communities. The design of the codec is a very good fit with the RTP > framework, and hence this protocol is simple and of high quality. > > MIME media types review received no comments. > > > Notes to the RFC Editor > > Abstract > > OLD: > This document describes the RTP payload format for the > BroadVoice(TM) narrowband and wideband speech codecs developed by > Broadcom Corporation. > NEW: > This document describes the RTP payload format for the > BroadVoice(TM) narrowband and wideband speech codecs. > The narrowband codec, called BroadVoice16, or BV16, > has been selected by CableLabs as a mandatory codec in > PacketCable 1.5 and has a CableLabs specification. > > Section 2, first paragraph > OLD: > BroadVoice is a speech codec family developed by Broadcom for VoIP > (Voice over Internet Protocol) applications, including Voice over > Cable, Voice over DSL, and IP phone applications. > NEW: > BroadVoice is a speech codec family developed for VoIP > (Voice over Internet Protocol) applications, including Voice > over Cable, Voice over DSL, and IP phone applications. > > Section 2, second paragraph: > > OLD: > More specifically, the BV16 codec was selected as one of the > mandatory audio codecs in PacketCable (TM) 1.5 Audio/Video > Codecs Specification [4]. > > NEW: > More specifically, the BV16 codec was selected as one of the > mandatory audio codecs in PacketCable (TM) 1.5 Audio/Video > Codecs Specification [4] and has been implemented by multiple > vendors. The wideband version (BV32) has been developed by > Broadcom but has not yet appeared in > a public specification; since it is technically very similar > to BV16, its payload format is also defined in this document. > > Section 3.1, Figure 1: > > Please remove blank line under L0, L1 etc. row in the figure. > > Section 5.1, "maxptime" bullet > > OLD: > > maxptime: See RFC 2327 [5] for its definition. The maxptime > SHOULD be a multiple of the duration of a single codec data > frame (5 ms). > > NEW: > maxptime: See RFC 3267 [8] for its definition. The maxptime > SHOULD be a multiple of the duration of a single codec data > frame (5 ms). > > Section 10.1: > One new normative reference: > > NEW: > [8] Sjoberg, J., Westerlund, M., Lakaniemi, A., and Q. Xie, > "Real-Time Transport Protocol (RTP) Payload Format and File > Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive > Multi-Rate Wideband (AMR-WB) Audio Codecs", RFC 3267, June 2002. > > Section 7: First paragraph > OLD: > RTP packets using the payload format defined in this specification > are subject to the security considerations discussed in the RTP > specification [1] and any appropriate profile (for example, [7]). > This implies that confidentiality of the media streams is achieved > by encryption. Because the data compression used with this payload > format is applied end-to-end, encryption may be performed after > compression so there is no conflict between the two operations. > > NEW: > RTP packets using the payload format defined in this specification > are subject to the security considerations discussed in the RTP > specification [1] and any appropriate profile (for example, [7]). > This implies that confidentiality of the media streams is achieved > by encryption. > > Removal of the last sentence! > > Section: 9 > OLD: > > The authors would like to thank Magnus Westerlung, Colin Perkins, > Allison Mankin, and Jean-Francois Mule for their review of this > document. > > NEW > The authors would like to thank Magnus Westerlund, Colin Perkins, > > ^ > Allison Mankin, and Jean-Francois Mule for their review of this > document. > > > _______________________________________________ > Audio/Video Transport Working Group > avt@ietf.org > https://www1.ietf.org/mailman/listinfo/avt > _______________________________________________ Audio/Video Transport Working Group avt@ietf.org https://www1.ietf.org/mailman/listinfo/avt _______________________________________________ Audio/Video Transport Working Group avt@ietf.org https://www1.ietf.org/mailman/listinfo/avt
- [AVT] Protocol Action: 'RTP Payload Format for Br… The IESG
- Re: [AVT] Protocol Action: 'RTP Payload Format fo… Mike
- RE: [AVT] Protocol Action: 'RTP Payload Format fo… Raymond (Juin-Hwey) Chen