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Hi,
> aplay calls the ALSA API in the obvious way, just like
> speaker-test, so I'm not sure why one works and one does not. I
> suspect there might be a bug in the ALSA framework.
>
Do you have an idea how to find and fix this bug? I would
de my
self but if there is anything I can test to help to fix it, just let
me know.
Kind regards,
Hauke
Am 21.04.2016 um 02:46 schrieb Hauke Westemeier:
>
>
> Hi,
>
> I just read in
> https://www.hifiberry.com/guides/configuring-linux-3-18-x/ "Note
> that aplayer won’
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Hi,
aplay -D plughw:1,0 /usr/share/sounds/alsa/Front_Right.wav
gives
Playing WAVE '/usr/share/sounds/alsa/Front_Right.wav' : Signed 16 bit
Little Endian, Rate 48000 Hz, Mono
aplay: set_params:1297: Unable to install hw params:
ACCESS:
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I was away at the weekend, therefore I can only reply today.
> Try running this program:
>
http://download.atmark-techno.com/misc/demos/usb-audio-a500-howto/hw_params.c
> Does it report one channel?
./hw_params
PLAYBACK
Device: hw:0
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>
> Please try putting this into your ~/.asoundrc:
>
> pcm.stereoonly { type hw card 0 channels 2 }
>
> and then running "aplay -v -D plug:stereoonly
> /.../Front_Center.wav". Does it work? Does it expand the file to
> two channels?
>
I did so
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> Are there any error messages in the system log?
Every time I run
aplay /usr/share/sounds/alsa/Front_Center.wav
(and get the error)
[38928.967567] pcm512x 1-004d: No SCLK, using BCLK: -2
is added to
/var/log/syslog
According to
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The content of
/proc/asound/card0/pcm0p/sub0/hw_params
is just "closed". This is as expected as the HifiBerry card is card1,
its parameters given in
/proc/asound/card1/pcm0p/sub0/hw_params
are
access: RW_INTERLEAVED
format: S16_LE
subformat: STD
uke
Am 21.04.2016 um 02:27 schrieb Hauke Westemeier:
>
>>>> Where can I find the source code of the driver?
>>>
>>> Which driver?
>
>> Whatever driver you're using. See /proc/asound/modules. (I'm
>> asking because it does not appear to be part of the
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>>> Where can I find the source code of the driver?
>>
>> Which driver?
>
> Whatever driver you're using. See /proc/asound/modules.
> (I'm asking because it does not appear to be part of the official
> Linus Linux kernel.)
>
cat
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> "Front Right" is the name of the channel. There could be other
> channels such as "Side Right", "Back Right"; and the channel in
> the front would be called "Center".
So although the file is called Front_Right.wav aplay should play it on
both
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