<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - periodic audio skips with Intel HDA" href="https://bugs.freedesktop.org/show_bug.cgi?id=49608#c27">Comment # 27</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - periodic audio skips with Intel HDA" href="https://bugs.freedesktop.org/show_bug.cgi?id=49608">bug 49608</a> from <a class="email" href="mailto:superquad.vortex2@gmail.com" title="Raymond <superquad.vortex2@gmail.com>"> Raymond</a> <pre>(In reply to rkfg from <a href="show_bug.cgi?id=49608#c26">comment #26</a>) > So I've bought a laptop with VIA sound as well and it also have > skips/stutters. I worked around it on both systems with these steps: > > 1) in /etc/pulse/default.pa added tsched=0: > load-module module-udev-detect tsched=0 > > 2) to reduce latency set in /etc/pulse/daemon.conf: > default-fragments = 4 > default-fragment-size-msec = 1 > > The final latency is a product of these numbers, 1*4 == 4 ms which is > acceptable. The number of fragments should be at least 2 so the least > latency possible is 2*1 == 2 ms. I don't know if there's a real difference > between 4 fragments of 1 ms each or 2 fragments of 2 ms each. Try some > experimenting. At least now I don't have latency increase and sound doesn't > skip on pavucontrol launch, though it still skips on LMMS launch. > are there any difference when using four periods or two periods ? 1ms at 44100 Hz has 44.1 frames aplay select buffer size nearest to the selected time aplay -D hw:0,0 -v --buffer-time=4000 /tmp/fr025.wav aplay -D hw:0,0 -v --period-time=2000 --buffer-time=4000 /tmp/fr025.wav</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>