#262: Pulseaudio should switch sample rates when possible
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Reporter: Florob | Owner: lennart
Type: defect | Status: closed
Priority: normal | Milestone:
Component: daemon | Severity: normal
Resolution: wontfix | Keywords:
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Comment (by Florob):
Replying to [comment:4 lennart]:
> Florob: Resampling won't cause you stuttering music. Not on any hardware
that is newer than 10 years. However, if we'd switch sampling rates all
the times when a new client connects and requests a different rate and
have to close and reopen the audio device for that then you would
certainly hear that as nasty drop outs. Just think of this case: you play
two streams at the same time. First you start one with 8khz sampling rate.
When it is half way through you start one at 44khz. In the world you are
requesting we'd first open the audio device in 8khz and as soon as the
second stream starts to close it and reopen it in 44khz. You will
certainly hear that, the first stream will be interrupted for a short
time! So in short: what you are requesting will cause bad sound quality.
I don't know if you realize how bad an impression you make saying the
problem your users are having does not exist.
The fact is. No pulseaudio, everything is fine. Pulseaudio with one or
multiple streams at default sample rate, fine. Pulseaudio with one stream
not at default sample rate, works with relatively high CPU usage.
Pulseaudio with two streams not at default sample rate, epic fail.
And my hardware is newer then 10 years...
Maybe the SSE change will help but as a matter of fact Pulsaudio is
useless for me right now. If you say it's not resampling you are welcome
to suggest what else is causing this trouble.
I short: I don't really tell you how to write your software and you know
way more about Linux audio I guess, but please don't tell me I'm imagining
things, be helpfull instead. Please.
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Ticket URL: <http://www.pulseaudio.org/ticket/262#comment:9>
PulseAudio <http://pulseaudio.org/>
The PulseAudio Sound Server
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