[AG-TECH] 'Warbled' Sound under Linux
John Hodrien
johnh at comp.leeds.ac.uk
Tue Aug 16 04:39:51 CDT 2005
I've had this problem before, and managed to escape it through upgrading ALSA
and friends. But now it's back again, on a machine that's caused me nothing
but grief so far.
Initially I was trying to use an onboard SB Audigy 24bit with ALSA. Sadly
recording is not supported. Then I tried OSS, but despite claiming support
for recording, it doesn't work.
So I've bought a Terratec USB 5.1 MkII card (all PCI slots are used by capture
cards) which uses the generic snd-usb-audio driver. Using ALSA rat leaves me
shafted, as it doesn't even start up with a failed assertion. I might poke at
this later although I suspect this is a painful road.
Using OSS rat with ALSA (using OSS emulation) works, and recording works
perfectly. Playback however is shoddy, with it sounding warbled. As far as I
can gather it's trying to repair the audio (as it sound different with
different repair schemes) but there's no packet loss. If I add redundancy to
the stream, the audio sounds fine, as does it if I drop to 8kHz.
Neither of these are a solution though. Anyone got any suggestions as to how
to fix this?
jh
--
"Come friendly bombs, and fall on Slough!
It isn't fit for humans now,
There isn't grass to graze a cow.
Swarm over, Death." -- Sir John Betjeman
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