Hello Dennis! Please send me the links to your streams. I'm interested in the audioquality. regards Gagarin M. Stockholm www.mrs.se Dennis Heerema <Dennis at Heerema.net> wrote:>Hello Jordan, > >I run a test stream in OPUS format. >I find the quality of OPUS way better at low bitrates then VORBIS. >Thus better quality at lower bitrates, but also on higher bitrates the >codec sounds good. > >Latency is lower, but for broadcasting a radio program for me at the >moment it is not that importend, so i did not test that really with >icecast (i did test opus low latency but with other applications: >fideliphone and teamtalk) > >Stream runs stable, my stream is a transcode made by Liquidsoap, from a >transparent ogg vorbis stream (The reason i'm doing that is because i'm >transcoing also to mp3, vorbis aacplus at different bitrates). > >Input is a live stream from a studio to my main icecast server, on this >server i transcode with liquidsoap. Then every stream is relayed by two >public icecast servers where listener clients connect to. > >Running this for quite a while now and it is stable for all streams. > >The is one downside on OPUS at the moment, there are not that much >clients able to play opus, plus on track change the stream makes a >little frame noticeable dropout. I do not know wheather this is cased >by >liquidsoap or the player. > >The quys from liquidsoap say it is a problem how the player implemented >the opus codec (VLC). > >If you want, you can listen to my (dutch streams, day hours non stop >music, evenings programms hosted by a announcer) streams, send my a >private message and i will send you al my diffrent stream links, so you >can compare. > >Kind regards, > >Dennis > > > > >Op 31-5-2013 16:43, TheDarkener schreef: >> Hi all, >> >> I've been looking at opus lately as a replacement to vorbis and it >sure >> seems to me that, at least on paper, it is the 'next generation' >> streaming codec. Has anyone been using opus as a streaming codec to >> Icecast? If so, how do the following general characteristics compare >to >> vorbis? >> >> + Quality >> + Latency >> + Bandwidth >> + Performance (on stream client and Icecast server) >> + Stability >> >> Also, what use case in your setup (voice only, music, pre-recorded >files >> vs. live input, ?) Any input is greatly appreciated. I understand >there >> is little support (compared to vorbis, anyway) for opus, but I'm >hoping >> to help change that at least a little bit. >> >> >> Cheers, >> Jordan >> > > >_______________________________________________ >Icecast mailing list >Icecast at xiph.org >http://lists.xiph.org/mailman/listinfo/icecast-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/icecast/attachments/20130531/01fa074a/attachment.htm
On 05/31/2013 04:48 PM, Gagarin Miljkovich wrote:> Hello Dennis! > > Please send me the links to your streams. I'm interested in the > audioquality.You can also check out: http://dir.xiph.org/by_format/Opus Best regards Thomas B. Ruecker> Dennis Heerema <Dennis at Heerema.net> wrote: > > Hello Jordan, > > I run a test stream in OPUS format. > I find the quality of OPUS way better at low bitrates then VORBIS. > Thus better quality at lower bitrates, but also on higher bitrates the > codec sounds good. > > Latency is lower, but for broadcasting a radio program for me at the > moment it is not that importend, so i did not test that really with > icecast (i did test opus low latency but with other applications: > fideliphone and teamtalk) > > Stream runs stable, my stream is a transcode made by Liquidsoap, from a > transparent ogg vorbis stream (The reason i'm doing that is because i'm > transcoing also to mp3, vorbis aacplus at different bitrates). > > Input is a live stream from a studio to my main icecast server, on this > server i transcode with liquidsoap. Then every stream is relayed by two > public ic > ecast > servers where listener clients connect to. > > Running this for quite a while now and it is stable for all streams. > > The is one downside on OPUS at the moment, there are not that much > clients able to play opus, plus on track change the stream makes a > little frame noticeable dropout. I do not know wheather this is cased by > liquidsoap or the player. > > The quys from liquidsoap say it is a problem how the player implemented > the opus codec (VLC). > > If you want, you can listen to my (dutch streams, day hours non stop > music, evenings programms hosted by a announcer) streams, send my a > private message and i will send you al my diffrent stream links, so you > can compare. > > Kind regards, > > Dennis > > > > > Op 31-5-2013 16:43, TheDarkener schreef: > > Hi all, < br />I've been looking at opus lately as a > replacement to vorbis and it sure seems to me that, at least > on paper, it is the 'next generation' streaming codec. Has > anyone been using opus as a streaming codec to Icecast? If so, > how do the following general characteristics compare to > vorbis? + Quality + Latency + Bandwidth + Performance (on > stream client and Icecast server) + Stability Also, what use > case in your setup (voice only, music, pre-recorded files vs. > live input, ?) Any input is greatly appreciated. I understand > there is little support (compared to vorbis, anyway) for opus, > but I'm hoping to help change that at least a little bit. > Cheers, Jordan > > > > > ------------------------------------------------------------------------ > > Icecast mailing list > Icecast at xiph.org > http://lists.xiph.org/mailman/listinfo/icecast > > > > _______________________________________________ > Icecast mailing list > Icecast at xiph.org > http://lists.xiph.org/mailman/listinfo/icecast-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/icecast/attachments/20130609/66977142/attachment.htm
El dom, 09-06-2013 a las 08:19 +0000, "Thomas B. R?cker" escribi?:> On 05/31/2013 04:48 PM, Gagarin Miljkovich wrote: > > > Hello Dennis! > > > > Please send me the links to your streams. I'm interested in the > > audioquality. > > You can also check out: > http://dir.xiph.org/by_format/OpusHi Thomas Very interesting. One question about *Bitrate scalability*: Does the change from mono to stereo is keeping the same bandwidth (20 kHz) ?.> > Best regards > > Thomas B. Ruecker > > > Dennis Heerema <Dennis at Heerema.net> wrote: > > Hello Jordan, > > > > I run a test stream in OPUS format. > > I find the quality of OPUS way better at low bitrates then VORBIS. > > Thus better quality at lower bitrates, but also on higher bitrates the > > codec sounds good. > > > > Latency is lower, but for broadcasting a radio program for me at the > > moment it is not that importend, so i did not test that really with > > icecast (i did test opus low latency but with other applications: > > fideliphone and teamtalk) > > > > Stream runs stable, my stream is a transcode made by Liquidsoap, from a > > transparent ogg vorbis stream (The reason i'm doing that is because i'm > > transcoing also to mp3, vorbis aacplus at different bitrates). > > > > Input is a live stream from a studio to my main icecast server, on this > > server i transcode with liquidsoap. Then every stream is relayed by two > > public ic > > ecast > > servers where listener clients connect to. > > > > Running this for quite a while now and it is stable for all streams. > > > > The is one downside on OPUS at the moment, there are not that much > > clients able to play opus, plus on track change the stream makes a > > little frame noticeable dropout. I do not know wheather this is cased by > > liquidsoap or the player. > > > > The quys from liquidsoap say it is a problem how the player implemented > > the opus codec (VLC). > > > > If you want, you can listen to my (dutch streams, day hours non stop > > music, evenings programms hosted by a announcer) streams, send my a > > private message and i will send you al my diffrent stream links, so you > > can compare. > > > > Kind regards, > > > > Dennis > > > > > > > > > > Op 31-5-2013 16:43, TheDarkener schreef: > > Hi all, > > < > > br > > />I've been looking at opus lately as a replacement to vorbis and it sure > > seems to me that, at least on paper, it is the 'next generation' > > streaming codec. Has anyone been using opus as a streaming codec to > > Icecast? If so, how do the following general characteristics compare to > > vorbis? > > > > + Quality > > + Latency > > + Bandwidth > > + Performance (on stream client and Icecast server) > > + Stability > > > > Also, what use case in your setup (voice only, music, pre-recorded files > > vs. live input, ?) Any input is greatly appreciated. I understand there > > is little support (compared to vorbis, anyway) for opus, but I'm hoping > > to help change that at least a little bit. > > > > > > Cheers, > > Jordan > > > > > > > > > > ____________________________________________________________ > > > > Icecast mailing list > > Icecast at xiph.org > > http://lists.xiph.org/mailman/listinfo/icecast > > > > > > _______________________________________________ > > Icecast mailing list > > Icecast at xiph.org > > http://lists.xiph.org/mailman/listinfo/icecast > > _______________________________________________ > Icecast mailing list > Icecast at xiph.org > http://lists.xiph.org/mailman/listinfo/icecast