Are there any speakerphones or other conferencing HW phones that play the audio in stereo? Either their own speakers, or jacks for an amp with room speakers? Is there any way for Asterisk to deliver call legs with stereo channels in the RTP stream? If not, is it possible for Asterisk to keep 2 separate calls, or pairs of legs in a conference call, synced exactly enough (including traveling over the Net between the same 2 IP#s) for them to arrive as a stereo pair at the endpoint? -- (C) Matthew Rubenstein
although not stereo i believe its the closest you will get if the codec is supported by asterisk. polycom has now HD codec On 8/27/07, Matthew Rubenstein <email at mattruby.com> wrote:> Are there any speakerphones or other conferencing HW phones that play > the audio in stereo? Either their own speakers, or jacks for an amp with > room speakers? Is there any way for Asterisk to deliver call legs with > stereo channels in the RTP stream? > > If not, is it possible for Asterisk to keep 2 separate calls, or pairs > of legs in a conference call, synced exactly enough (including traveling > over the Net between the same 2 IP#s) for them to arrive as a stereo > pair at the endpoint? > -- > > (C) Matthew Rubenstein > > > _______________________________________________ > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >
Do any softphones run the HD codec? What exactly is the HD codec technically called, and is there any info about its codec running inside Asterisk? On Mon, 2007-08-27 at 08:47 -0400, C F wrote:> although not stereo i believe its the closest you will get if the > codec is supported by asterisk. polycom has now HD codec > > On 8/27/07, Matthew Rubenstein <email at mattruby.com> wrote: > > Are there any speakerphones or other conferencing HW phones that play > > the audio in stereo? Either their own speakers, or jacks for an amp with > > room speakers? Is there any way for Asterisk to deliver call legs with > > stereo channels in the RTP stream? > > > > If not, is it possible for Asterisk to keep 2 separate calls, or pairs > > of legs in a conference call, synced exactly enough (including traveling > > over the Net between the same 2 IP#s) for them to arrive as a stereo > > pair at the endpoint? > > -- > > > > (C) Matthew Rubenstein > > > > > > _______________________________________________ > > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > > > asterisk-users mailing list > > To UNSUBSCRIBE or update options visit: > > http://lists.digium.com/mailman/listinfo/asterisk-users > >-- (C) Matthew Rubenstein
AFAIK the HD codec they use is the ITU-T G722.2 AKA GSM-AMR-WB, the big improvement here is the sampling rate ( 16kHz ). On 8/27/07, Matthew Rubenstein <email at mattruby.com> wrote:> Do any softphones run the HD codec? What exactly is the HD codec > technically called, and is there any info about its codec running inside > Asterisk? > > > On Mon, 2007-08-27 at 08:47 -0400, C F wrote: > > although not stereo i believe its the closest you will get if the > > codec is supported by asterisk. polycom has now HD codec > > > > On 8/27/07, Matthew Rubenstein <email at mattruby.com> wrote: > > > Are there any speakerphones or other conferencing HW phones that play > > > the audio in stereo? Either their own speakers, or jacks for an amp with > > > room speakers? Is there any way for Asterisk to deliver call legs with > > > stereo channels in the RTP stream? > > > > > > If not, is it possible for Asterisk to keep 2 separate calls, or pairs > > > of legs in a conference call, synced exactly enough (including traveling > > > over the Net between the same 2 IP#s) for them to arrive as a stereo > > > pair at the endpoint? > > > -- > > > > > > (C) Matthew Rubenstein > > > > > > > > > _______________________________________________ > > > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > > > > > asterisk-users mailing list > > > To UNSUBSCRIBE or update options visit: > > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > -- > > (C) Matthew Rubenstein > > > _______________________________________________ > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >-- Guilherme Loch G?es MSN:glwgoes at gmail.com (48) 99115299
The codec is G722 I believe. and Polycom has a conference speaker phone with a subwoofer option that has HD voice. On 8/27/07, Matthew Rubenstein <email at mattruby.com> wrote:> Do any softphones run the HD codec? What exactly is the HD codec > technically called, and is there any info about its codec running inside > Asterisk? > > > On Mon, 2007-08-27 at 08:47 -0400, C F wrote: > > although not stereo i believe its the closest you will get if the > > codec is supported by asterisk. polycom has now HD codec > > > > On 8/27/07, Matthew Rubenstein <email at mattruby.com> wrote: > > > Are there any speakerphones or other conferencing HW phones that play > > > the audio in stereo? Either their own speakers, or jacks for an amp with > > > room speakers? Is there any way for Asterisk to deliver call legs with > > > stereo channels in the RTP stream? > > > > > > If not, is it possible for Asterisk to keep 2 separate calls, or pairs > > > of legs in a conference call, synced exactly enough (including traveling > > > over the Net between the same 2 IP#s) for them to arrive as a stereo > > > pair at the endpoint? > > > -- > > > > > > (C) Matthew Rubenstein > > > > > > > > > _______________________________________________ > > > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > > > > > asterisk-users mailing list > > > To UNSUBSCRIBE or update options visit: > > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > -- > > (C) Matthew Rubenstein > > > _______________________________________________ > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >-- Bruce Reeves Nortex Networks
The HD Codec is just G.722 /b On Aug 27, 2007, at 7:52 AM, Matthew Rubenstein wrote:> Do any softphones run the HD codec? What exactly is the HD codec > technically called, and is there any info about its codec running > inside > Asterisk? > > > On Mon, 2007-08-27 at 08:47 -0400, C F wrote: >> although not stereo i believe its the closest you will get if the >> codec is supported by asterisk. polycom has now HD codec >> >> On 8/27/07, Matthew Rubenstein <email at mattruby.com> wrote: >>> Are there any speakerphones or other conferencing HW phones that >>> play >>> the audio in stereo? Either their own speakers, or jacks for an >>> amp with >>> room speakers? Is there any way for Asterisk to deliver call legs >>> with >>> stereo channels in the RTP stream? >>> >>> If not, is it possible for Asterisk to keep 2 separate calls, or >>> pairs >>> of legs in a conference call, synced exactly enough (including >>> traveling >>> over the Net between the same 2 IP#s) for them to arrive as a stereo >>> pair at the endpoint? >>> -- >>> >>> (C) Matthew Rubenstein >>> >>> >>> _______________________________________________ >>> --Bandwidth and Colocation Provided by http://www.api-digital.com-- >>> >>> asterisk-users mailing list >>> To UNSUBSCRIBE or update options visit: >>> http://lists.digium.com/mailman/listinfo/asterisk-users >>> > -- > > (C) Matthew Rubenstein > > > _______________________________________________ > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users
The 601 has g722 (and its not g722.1 or .2) /b On Aug 27, 2007, at 8:14 AM, Bruce Reeves wrote:> The codec is G722 I believe. and Polycom has a conference speaker > phone with a subwoofer option that has HD voice. > > On 8/27/07, Matthew Rubenstein <email at mattruby.com> wrote: >> Do any softphones run the HD codec? What exactly is the HD >> codec >> technically called, and is there any info about its codec running >> inside >> Asterisk? >> >> >> On Mon, 2007-08-27 at 08:47 -0400, C F wrote: >>> although not stereo i believe its the closest you will get if the >>> codec is supported by asterisk. polycom has now HD codec >>> >>> On 8/27/07, Matthew Rubenstein <email at mattruby.com> wrote: >>>> Are there any speakerphones or other conferencing HW phones >>>> that play >>>> the audio in stereo? Either their own speakers, or jacks for an >>>> amp with >>>> room speakers? Is there any way for Asterisk to deliver call >>>> legs with >>>> stereo channels in the RTP stream? >>>> >>>> If not, is it possible for Asterisk to keep 2 separate >>>> calls, or pairs >>>> of legs in a conference call, synced exactly enough (including >>>> traveling >>>> over the Net between the same 2 IP#s) for them to arrive as a >>>> stereo >>>> pair at the endpoint? >>>> -- >>>> >>>> (C) Matthew Rubenstein >>>> >>>> >>>> _______________________________________________ >>>> --Bandwidth and Colocation Provided by http://www.api-digital.com-- >>>> >>>> asterisk-users mailing list >>>> To UNSUBSCRIBE or update options visit: >>>> http://lists.digium.com/mailman/listinfo/asterisk-users >>>> >> -- >> >> (C) Matthew Rubenstein >> >> >> _______________________________________________ >> --Bandwidth and Colocation Provided by http://www.api-digital.com-- >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users >> > > > -- > Bruce Reeves > Nortex Networks > > _______________________________________________ > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users
FreeSWITCH supports 16k wideband conferences and supports G.722, speex 16k and should work great with the phones that support it. I have personally tested it with grandstream phones. /b On Aug 27, 2007, at 7:47 AM, C F wrote:> although not stereo i believe its the closest you will get if the > codec is supported by asterisk. polycom has now HD codec > > On 8/27/07, Matthew Rubenstein <email at mattruby.com> wrote: >> Are there any speakerphones or other conferencing HW phones that >> play >> the audio in stereo? Either their own speakers, or jacks for an >> amp with >> room speakers? Is there any way for Asterisk to deliver call legs >> with >> stereo channels in the RTP stream? >> >> If not, is it possible for Asterisk to keep 2 separate calls, or >> pairs >> of legs in a conference call, synced exactly enough (including >> traveling >> over the Net between the same 2 IP#s) for them to arrive as a stereo >> pair at the endpoint? >> -- >> >> (C) Matthew Rubenstein >> >> >> _______________________________________________ >> --Bandwidth and Colocation Provided by http://www.api-digital.com-- >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users >> > > _______________________________________________ > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users