https://rivendellaudio.wiki/index.php?action=history&feed=atom&title=Fine_tuning_ALSA_for_your_sound_card 2026-04-23T14:48:19Z Revision history for this page on the wiki MediaWiki 1.45.3 https://rivendellaudio.wiki/index.php?title=Fine_tuning_ALSA_for_your_sound_card&diff=28791&oldid=prev 2023-01-28T10:13:53Z

<p>Imported via HTML fallback (before-primary)</p> <p><b>New page</b></p><div>Q: When I last checked out RD six months ago (DB and audio on playback pc, using M-Audio sound card and on board sound), there was a varying delay/gap when segueing - perhaps in the order of 50-150ms. Why is this?<br /> <br /> A: Ah, ALSA. There are some tuning knobs in rd.conf(5) that could significantly improve this; specifically, see the &#039;PeriodSize=&#039; parameter in the [Alsa] section. That file ships with a very conservative number for this setting so we don&#039;t xrun on setups with poor realtime performance. Lowering it will reduce playout latency at the cost of demanding better RT performance. At some point as you lower it, you&#039;ll start getting xruns (often audible, but can also be seen in the syslog); you generally want this set at a value just <br /> above that point. On well-tuned hardware with a preemptive kernel and an ICE2712-based card, I&#039;ve been able to get this as low as 64 frames/period.<br /> <br /> Frederick F. Gleason, Jr.<br /> <br /> Chief Developer<br /> <br /> Paravel Systems<br /> <br /> For more information also see Wiki page: [/index.php/Garbled_audio,_alsa_error_32:_Broken_pipe,_Xrun_errors Garbled audio, alsa error 32: Broken pipe, Xrun errors]<br /> <br /> Retrieved from &quot;[[Fine_tuning_ALSA_for_your_sound_card|http://wiki.rivendellaudio.org/index.php?title=Fine_tuning_ALSA_for_your_sound_card&amp;oldid=38]]&quot;<br /> </div>

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