Comment 74 for bug 1315212

if you cannot find stereo 48000Hz wav file

aplay -D plughw:CARD=CA0106 -v --buffer-size=1024 any.wav

try to find minimum buffer size 1024,512, 256,128,64,... without underrun

1024 frames = 21.33 ms x 48000Hz
4096 = 85.33 ms x 48000Hz

if request tlength 85.33ms is buffer time and 21.33ms is period time

not sure why pulseaudio received latency is 26ms

alsa_output.pci-0000_06_00.0.analog-stereo with sample spec s16le 2ch 48000Hz and channel map front-left,front-right
Dec 25 19:29:42 homecomp pulseaudio[1911]: media.name = "ALSA Playback"
Dec 25 19:29:42 homecomp pulseaudio[1911]: application.name = "ALSA plug-in [Transistor.bin.x86_64]"
Dec 25 19:29:42 homecomp pulseaudio[1911]: native-protocol.peer = "UNIX socket client"
Dec 25 19:29:42 homecomp pulseaudio[1911]: native-protocol.version = "26"
Dec 25 19:29:42 homecomp pulseaudio[1911]: application.process.id = "9536"
Dec 25 19:29:42 homecomp pulseaudio[1911]: application.process.user = "rkfg"
Dec 25 19:29:42 homecomp pulseaudio[1911]: application.process.host = "homecomp"
Dec 25 19:29:42 homecomp pulseaudio[1911]: application.process.binary = "Transistor.bin.x86_64"
Dec 25 19:29:42 homecomp pulseaudio[1911]: application.language = "en_GB.UTF-8"
Dec 25 19:29:42 homecomp pulseaudio[1911]: window.x11.display = ":0.0"
Dec 25 19:29:42 homecomp pulseaudio[1911]: application.process.machine_id = "3be8f38f291dd2003af500d051c0a849"
Dec 25 19:29:42 homecomp pulseaudio[1911]: application.process.session_id = "10"
Dec 25 19:29:42 homecomp pulseaudio[1911]: module-stream-restore.id = "sink-input-by-application-name:ALSA plug-in [Transistor.bin.x86_64]"
Dec 25 19:29:42 homecomp pulseaudio[1911]: Requested tlength=85.33 ms, minreq=21.33 ms
Dec 25 19:29:42 homecomp pulseaudio[1911]: Early requests mode enabled, configuring sink latency to minreq.
Dec 25 19:29:42 homecomp pulseaudio[1911]: Requested latency=21.33 ms, Received latency=26.00 ms