Re: Low pass filter + ALSA

Am Montag, 16. April 2007 21:44 schrieben Sie:
> Hey,
>
> Firstly, thanks for your tutorial on the ALSA wiki!
> http://alsa.opensrc.org/Low-pass_filter_for_subwoo
fer_channel_(HOWTO) 
> But I'm having some troubles with it. I copied your
example .asoundrc, but:
>
> $ aplay -Dupmix_20to51 audiodump.wav
> Playing WAVE 'audiodump.wav' : Signed 16 bit Little
Endian, Rate 48000
> Hz, Stereo
> ALSA lib
pcm_plug.c:746:(snd_pcm_plug_hw_refine_schange) Unable to
find
> an usable slave format for 'upmix_21to51'
> ALSA lib
pcm_plug.c:750:(snd_pcm_plug_hw_refine_schange) Format:
FLOAT_LE
> ALSA lib
pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave
format:
> S16_LE
> ALSA lib
pcm_plug.c:755:(snd_pcm_plug_hw_refine_schange) Slave
format:
> S32_LE
> ALSA lib
pcm_plug.c:840:(snd_pcm_plug_hw_refine_cchange) Unable to
find
> an usable client format
> ALSA lib
pcm_plug.c:844:(snd_pcm_plug_hw_refine_cchange) Format:
FLOAT_LE
> ALSA lib
pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave
format:
> S16_LE
> ALSA lib
pcm_plug.c:849:(snd_pcm_plug_hw_refine_cchange) Slave
format:
> S32_LE
> ALSA lib pcm_params.c:2152:(snd_pcm_hw_refine_slave)
Slave PCM not usable
> aplay: set_params:878: Broken configuration for this
PCM: no
> configurations available
>
> Is it still all working for you? Any pointers you could
give would be
> appreciated! 
>
> Cheers,
> -ol
Hello Oliver,

yes the setup is still working on my machine. I never had
your error message 
on my machine. But it seems that there are maybe some
problems about 
converting the sound format. I will forward this message to
the alsa-user 
list because I have no clue for a solution. Maybe somebody
there can help 
you.

Regards,
Benjamin

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