audio on audacity (microphone input)

[Yuandan Zhang]

just answer myself. get some fix from
http://audacityteam.org/forum/thread/132


lsof lives here:

ftp://vic.cc.purdue.edu/pub/tools/unix/lsof/README

Any decent distribution should package it so you can install via your
package manager.



aoss is part of the ALSA OSS compatability layer from the ALSA project.
Again, should be a distro package for this.



You can't use audacity if there is a sound daemon running because audacity
doesn't support the broken playback-only protocols used by sound daemons.
You can try the emulation scripts like

$ artsdsp audacity

or

$ esddsp audacity

but the results are likely to be poor because of the extrac conversion and
latency.

On 6/19/06, Yuandan Zhang <yuandan.zhang at gmail.com> wrote:
>
> Hi,
> I had difficulty to use audcity. when I started audacity, I got error like
> this
>
> There was an error initializing the audio i/o layer, you will not be able
> to play or record audio
> Error: Host error
>
> From there, I searched google and last post on this list. there were some
> suggestions: I followed them and did following things prior to start
> audacity
>
> rm ~/.audacity
> use alsamixer to unmute mic
> use volumn-control to unmute microphone input
>
> su -c "chmod 666 /dev/dsp* "
>
> It worked shortly, but after restart this system, I can't get this work
> any more. It can open a mp3 file, but can't play it. when click on play
> botton, it says
> Error while opening sound device. please check the output device settings
> and the project sample rate.
>
> I opened up the preperfence of audacity -> Audio i/o, there is nothing to
> select from playback device and recording device.
>
> please offer some suggestions?
>
> Yuandan
> my system is
> 2.6.16-1.2133_FC5 #1 Tue Jun 6 00:52:14 EDT 2006 i686 i686 i386 GNU/Linux
> I maintain it updated
>
>
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