I am curious , what do you all have as the burst-size? Like what number? Martin Mayiani Operation Specialist WMRA & WEMC 540.568.4045 wmra.org<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.wmra.org_&d=DwMFaQ&c=eLbWYnpnzycBCgmb7vCI4uqNEB9RSjOdn_5nBEmmeq0&r=eQi7nhx8pVV4tLuhsbN2fg&m=NFlE41P71KSXw5cwSeRchUP5NPq-DGAcQ7PZuBLgoOU&s=kMN-C5UjM7TSPILlWvJ-k5wu4UUakvkqbiJTlV6-zog&e=> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xiph.org/pipermail/icecast/attachments/20220802/20aa2334/attachment.htm>
Hi Martin, The ideal burst size is one that fills the receiver buffer as quickly as possible, without being so great as to require the receiver to close their TCP window due to backpressure on the stream from the player. Most players will begin decoding with ~32-64 KiB of data, and will playback with ~2 seconds of decoded audio. So, if your burst size is set to your bitrate times two seconds, you'll fill that buffer. However, some clients need to do additional type sniffing and what not before they begin playback. These often have hardcoded buffer sizes that must be filled before playback, and can be as high as 256 KiB (optimized for video, not audio). A good tradeoff for a typical quality stream of 192kbit is around 5 seconds, or 120,000 bytes of burst. Most clients will start instantly, will have a plentiful buffer so they won't drop out, but the latency still won't be too high for most channels. Don't forget to check your queue-size as well! *Brad Isbell // AudioPump, Inc.* brad at audiopump.co Skype: bradisbell Phone: +1 312-488-4680 On Tue, Aug 2, 2022 at 11:32 AM Mayiani, Martin Martine - mayianmm < mayianmm at jmu.edu> wrote:> I am curious , what do you all have as the burst-size? Like what number? > > > > > > Martin Mayiani > > Operation Specialist WMRA & WEMC > > 540.568.4045 > > wmra.org > <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.wmra.org_&d=DwMFaQ&c=eLbWYnpnzycBCgmb7vCI4uqNEB9RSjOdn_5nBEmmeq0&r=eQi7nhx8pVV4tLuhsbN2fg&m=NFlE41P71KSXw5cwSeRchUP5NPq-DGAcQ7PZuBLgoOU&s=kMN-C5UjM7TSPILlWvJ-k5wu4UUakvkqbiJTlV6-zog&e=> > > > _______________________________________________ > 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/20220802/4b6acaf6/attachment.htm>
I stream @ 320Kbps. I found the default settings not large enough for some players further afield or mobile so I put this in for 10 seconds buffer, 5 seconds burst: ??? <limits> ?????? <queue-size>409600</queue-size> ?????? <burst-on-connect>1</burst-on-connect> ?????? <burst-size>204800</burst-size> ??? </limits> Because I use Win7 as a server, and the burst doesn't work very well in this scenario, I put this under listen-sockets: ??? <listen-socket> ???? ??????? <so-sndbuf>131072</so-sndbuf> ??? </listen-socket> It's quite a large size buffer but I don't get any drop outs now @320kbps via a web based player or VLC over a mobile network here. Cheers, Gavin. On 3/08/2022 4:32 am, Mayiani, Martin Martine - mayianmm wrote:> > I am curious , what do you all have as the burst-size? Like what number? > > Martin Mayiani > > Operation Specialist WMRA & WEMC > > 540.568.4045 > > wmra.org > <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.wmra.org_&d=DwMFaQ&c=eLbWYnpnzycBCgmb7vCI4uqNEB9RSjOdn_5nBEmmeq0&r=eQi7nhx8pVV4tLuhsbN2fg&m=NFlE41P71KSXw5cwSeRchUP5NPq-DGAcQ7PZuBLgoOU&s=kMN-C5UjM7TSPILlWvJ-k5wu4UUakvkqbiJTlV6-zog&e=> > > > _______________________________________________ > 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/20220803/86384db2/attachment.htm>
Good morning, On Tue, 2022-08-02 at 16:32 +0000, Mayiani, Martin Martine - mayianmm wrote:> I am curious , what do you all have as the burst-size? Like what > number?Generally speaking I would not recommend to change the values unless you have a specific problem. It is way more easy to hurt your self with those values than to fix anything. That said, the interesting question here is: What is your actual problem? With best regards, -- Philipp Schafft (CEO/Gesch?ftsf?hrer) Telephon: +49.3535 490 17 92 Website: https://www.loewenfelsen.net/ Follow us: https://www.linkedin.com/company/loewenfelsen/ L?wenfelsen UG (haftungsbeschr?nkt) Registration number: Bickinger Stra?e 21 HRB 12308 CB 04916 Herzberg (Elster) VATIN/USt-ID: Germany DE305133015 -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 228 bytes Desc: This is a digitally signed message part URL: <http://lists.xiph.org/pipermail/icecast/attachments/20220804/324f64d1/attachment.sig>