[pulseaudio-tickets] [Bug 76328] Very bad static following audio input.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76328

--- Comment #2 from Raymond <superquad.vortex2 at gmail.com> ---
if you want low latency for real-time voice/video chat, there is no point to
use a two seconds of capture and playback buffer

sleeping for 1.98 seconds and wake up to capture


: [alsa-source-VT1708S Analog] alsa-util.c: Set buffer size first (to 88192
samples), period size second (to 44096 samples).
I: [alsa-source-VT1708S Analog] alsa-util.c: ALSA period wakeups disabled
D: [alsa-source-VT1708S Analog] alsa-source.c: hwbuf_unused=0
D: [alsa-source-VT1708S Analog] alsa-source.c: setting avail_min=87650
D: [alsa-source-VT1708S Analog] alsa-source.c: hwbuf_unused=0
D: [alsa-source-VT1708S Analog] alsa-source.c: setting avail_min=87310
I: [alsa-source-VT1708S Analog] alsa-source.c: Time scheduling watermark is
20.00ms
I: [alsa-source-VT1708S Analog] alsa-source.c: Resumed successfully...
I: [alsa-source-VT1708S Analog] alsa-source.c: Starting capture.
D: [pulseaudio] module-suspend-on-idle.c: Source
alsa_input.pci-0000_00_14.2.analog-stereo becomes idle, timeout in 5 seconds.
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
I: [pulseaudio] source-output.c: Rate changed to 44100 Hz
D: [pulseaudio] module-suspend-on-idle.c: Source
alsa_input.pci-0000_00_14.2.analog-stereo becomes busy, resuming.
D: [pulseaudio] resampler.c: Channel matrix:
D: [pulseaudio] resampler.c:        I00   I01 
D: [pulseaudio] resampler.c:     +------------
D: [pulseaudio] resampler.c: O00 | 0.500 0.500
I: [pulseaudio] remap.c: Using generic matrix remapping
I: [pulseaudio] resampler.c: Using resampler 'speex-float-1'
I: [pulseaudio] resampler.c: Using float32le as working format.
I: [pulseaudio] resampler.c: Choosing speex quality setting 1.
D: [pulseaudio] memblockq.c: memblockq requested: maxlength=33554432,
tlength=0, base=4, prebuf=0, minreq=1 maxrewind=0
D: [pulseaudio] memblockq.c: memblockq sanitized: maxlength=33554432,
tlength=33554432, base=4, prebuf=0, minreq=4 maxrewind=0
I: [pulseaudio] source-output.c: Created output 11 "ALSA Capture" on
alsa_input.pci-0000_00_14.2.analog-stereo with sample spec float32le 1ch
88200Hz and channel map mono
I: [pulseaudio] source-output.c:     media.name = "ALSA Capture"
I: [pulseaudio] source-output.c:     application.name = "ALSA plug-in
[audacity]"
I: [pulseaudio] source-output.c:     native-protocol.peer = "UNIX socket
client"
I: [pulseaudio] source-output.c:     native-protocol.version = "29"
I: [pulseaudio] source-output.c:     application.process.id = "18069"
I: [pulseaudio] source-output.c:     application.process.user = "dhaval"
I: [pulseaudio] source-output.c:     application.process.host = "dhaval"
I: [pulseaudio] source-output.c:     application.process.binary = "audacity"
I: [pulseaudio] source-output.c:     application.language = "en_US.UTF-8"
I: [pulseaudio] source-output.c:     window.x11.display = ":0"
I: [pulseaudio] source-output.c:     application.process.machine_id =
"fbb0c4896a9c0f680475c0a07edd2c5a"
I: [pulseaudio] source-output.c:     application.process.session_id = "1"
I: [pulseaudio] source-output.c:     application.icon_name = "audacity"
I: [pulseaudio] source-output.c:     module-stream-restore.id =
"source-output-by-application-name:ALSA plug-in [audacity]"
D: [pulseaudio] memblockq.c: memblockq requested: maxlength=4194304, tlength=0,
base=4, prebuf=1, minreq=0 maxrewind=0
D: [pulseaudio] memblockq.c: memblockq sanitized: maxlength=4194304,
tlength=4194304, base=4, prebuf=4, minreq=4 maxrewind=0
I: [pulseaudio] protocol-native.c: Final latency 23.22 ms = 11.61 ms + 11.61 ms
D: [alsa-source-VT1708S Analog] alsa-source.c: latency set to 11.61ms
D: [alsa-source-VT1708S Analog] alsa-source.c: hwbuf_unused=350724
D: [alsa-source-VT1708S Analog] alsa-source.c: setting avail_min=257
D: [alsa-source-VT1708S Analog] alsa-source.c: latency set to 11.61ms
D: [alsa-source-VT1708S Analog] alsa-source.c: hwbuf_unused=350724
D: [alsa-source-VT1708S Analog] alsa-source.c: setting avail_min=257

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