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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - module-loopback ignores latency_msec option"
href="https://bugs.freedesktop.org/show_bug.cgi?id=80770#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - module-loopback ignores latency_msec option"
href="https://bugs.freedesktop.org/show_bug.cgi?id=80770">bug 80770</a>
from <span class="vcard"><a class="email" href="mailto:superquad.vortex2@gmail.com" title="Raymond <superquad.vortex2@gmail.com>"> <span class="fn">Raymond</span></a>
</span></b>
<pre>( 0.138| 0.000) I: [pulseaudio] alsa-source.c: Using 4.0 fragments of size
2398 bytes (24.98ms), buffer size is 9594 bytes (99.94ms)
( 0.138| 0.000) D: [pulseaudio] alsa-source.c: hwbuf_unused=0
( 0.138| 0.000) D: [pulseaudio] alsa-source.c: setting avail_min=1
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: snd_pcm_dump():
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: Plug PCM: Hardware PCM card 2
'USB Device 0x46d:0x805' device 0 subdevice 0
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: Its setup is:
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: stream : CAPTURE
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: access :
MMAP_INTERLEAVED
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: format : S16_LE
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: subformat : STD
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: channels : 1
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: rate : 48000
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: exact rate : 48000
(48000/1)
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: msbits : 16
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: buffer_size : 4797
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: period_size : 1199
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: period_time : 24979
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: tstamp_mode : ENABLE
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: period_step : 1
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: avail_min : 1199
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: period_event : 1
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: start_threshold : -1
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: stop_threshold :
5400941853124067328
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: silence_threshold: 0
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: silence_size : 0
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: boundary :
5400941853124067328
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: appl_ptr : 0
( 0.138| 0.000) D: [pulseaudio] alsa-util.c: hw_ptr : 0
it strange that USB audio update in 1 ms interval for 48000Hz but pulseaudio
still cannot set 25ms period time</pre>
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