Re: audio dropouts still
Klaus you are mistaken.
On Fri, 2014-01-10 at 14:09 +0000, Klaus wrote:
> correlation between absolute CPU power and drop-outs
The issues Zenaan does experience are likely related to jackd, a sound
server that cares about sample accuracy [1].
When using jackd, CPU frequency scaling does matter a lot!
If you don't believe a professional audio engineer using Linux audio
since around 10 years, perhaps a Linux audio link is able to enlighten
you.
"CPU frequency scaling daemons that scale the frequency of the CPU
depending on the CPU load could cause xruns in some cases. More recent
versions of Jack1 (>= 0.118.0) are suffering less from xruns or run xrun
free with a CPU frequency scaling daemon enabled that's set to a scaling
governor like ondemand. A specialized CPU scaling daemon is in the works
that depends on the DSP-load instead of the CPU load: jackfreqd" -
http://wiki.linuxaudio.org/wiki/system_configuration
[1]
-------- Forwarded Message --------
From: Ralf Mardorf <ralf.mardorf@alice-dsl.net>
To: debian-user@lists.debian.org
Subject: Re: going mad - starting jackd starts pulseaudio
Date: Fri, 10 Jan 2014 09:35:19 +0100
Mailer: Evolution 3.10.3
JFTR some users might find setting up jackd to complicated, but jackd
provides advantages, e.g. "Within software, jackd provides
sample-accurate synchronization between all JACK applications." -
http://manual.ardour.org/synchronization/on-clock-and-time/
This does mean, that signals are not out-of-phase, so there won't be
unwanted filtering effects.
The easiness of other sound servers comes at a price.
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