Quoting Frank Barknecht <[EMAIL PROTECTED]>:
Hallo,
Hiram Abiff hat gesagt: // Hiram Abiff wrote:
Thnx for the tip, will try this. But, no matter which index the
Maya gets I always have this same issue that I described earlier,
cannot get it to play anything.
Yes, and I still have no idea, why it doesn't let you play anything,
not even with the plug-device, which AFAIK is supposed to do all
format, channel count and rate conversions necessary to basically play
anything on any soundcard.
I read alsa docs concerning the plug device in the meantime, I don't get
it either. **scratch scratch**
I especially don't understand why aplay
complains about not being able to set the hw_params to something like
a samplerate of 22050Hz, when playing a 22050Hz soundfile as in your
first mail. ALSA should know, that the MAYA USB cannot do 22050Hz in
hardware, this card can only do 44.1kHz and 48kHz and aplay should not
even try to use anything else, the plughw-device should instead do
proper conversions as it does on, e.g., the similar Terratec Aureon,
which I have.
Some similar things maybe go wrong in other areas as well, like
channel count or sample format. I don't know the ALSA internals in
this area, so lets hope one of the ALSA experts finds the time to look
at this.
lets, indeed. I did some further testing. Since aplay complains
that "Channels count non available" I used sox to convert
the test wave file from mono to stereo first, which produced
the same error. I then converted to quad after which I get a different
error message about the sample rate not being accurate:
I especially don't understand why aplay
complains about not being able to set the hw_params to something like
a samplerate of 22050Hz, when playing a 22050Hz soundfile as in your
first mail. ALSA should know, that the MAYA USB cannot do 22050Hz in
hardware, this card can only do 44.1kHz and 48kHz and aplay should not
even try to use anything else, the plughw-device should instead do
proper conversions as it does on, e.g., the similar Terratec Aureon,
which I have.
Some similar things maybe go wrong in other areas as well, like
channel count or sample format. I don't know the ALSA internals in
this area, so lets hope one of the ALSA experts finds the time to look
at this.
lets, indeed. I did some further testing. Since aplay complains
that "Channels count non available" I used sox to convert
the test wave file from mono to stereo first, which produced
the same error. I then converted to quad after which I get a different
error message about the sample rate not being accurate:
Playing WAVE 'arrive.wav' : Signed 16 bit Little Endian, Rate 22050 Hz,
Channels 4
Warning: rate is not accurate (requested = 22050Hz, got = 44100Hz)
please, try the plug plugin (-Dplug:hw:2)
aplay: set_params:935: Unable to install hw params:
ACCESS: RW_INTERLEAVED
FORMAT: S16_LE
SUBFORMAT: STD
SAMPLE_BITS: 16
FRAME_BITS: 64
CHANNELS: 4
RATE: 44100
PERIOD_TIME: (125011 125012)
PERIOD_SIZE: 5513
PERIOD_BYTES: 44104
PERIODS: (3 4)
BUFFER_TIME: 500000
BUFFER_SIZE: 22050
BUFFER_BYTES: 176400
TICK_TIME: 1000
After which I converted the wave file to 44100Hz sample rate and
got the same error message that I get when I use the plug device.
Playing WAVE 'arrive.wav' : Signed 16 bit Little Endian, Rate 44100 Hz,
Channels 4
aplay: set_params:935: Unable to install hw params:
ACCESS: RW_INTERLEAVED
FORMAT: S16_LE
SUBFORMAT: STD
SAMPLE_BITS: 16
FRAME_BITS: 64
CHANNELS: 4
RATE: 44100
PERIOD_TIME: (125011 125012)
PERIOD_SIZE: 5513
PERIOD_BYTES: 44104
PERIODS: (3 4)
BUFFER_TIME: 500000
BUFFER_SIZE: 22050
BUFFER_BYTES: 176400
TICK_TIME: 1000
I checkveed dmesg, this message appears after each aplay's
unsuccesful attempt:
cannot submit datapipe for urb 0, err = -38
What is this "urb 0"?
--
http://www.egoboobits.net/HiramAbiff
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