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Try running your player without PulseAudio: $ pasuspender -- mplayer movie.mpg If this helps, you've got a PulseAudio issue. You can also find tuning tips on the page linked above.


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A sound card is a card (sometimes little more than a chip) for receiving and sending signals from/to audio jacks or other input standards for connecting audio input and output devices to a computer, integrated soundcards use the CPU to process the signals from input before forwarding them to whichever software is recording them, and also to process the sound ...


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If your goal is specifically to pipe arbitrary data from a file to your sound card then your solution is solid. If your goal is simply to test that your sound works then I would recommend the command speaker-test. It plays static over a single channel by default. On Debian based systems it comes from the alsa-utils package.


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From my testing, aplay works: aplay <filename> When I did aplay test.html # a simple html file I got hissy static. aplay something.wav Played the music in the wav file. And in a bizarre twist, a file containing this: Fri Jan 13 08:20:01 CST 2012 Fri Jan 13 08:21:01 CST 2012 Fri Jan 13 08:22:01 CST 2012 Fri Jan 13 08:23:01 CST 2012 Fri Jan ...


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I believe you need to change your default ALSA sound device. I had a similar problem with my Sound Blaster Audigy 2 a while back. Put this in your /etc/asound.conf (or ~/.asoundrc for just your user), creating the file if it doesn't exist: pcm.!default { type plug slave.pcm { @func getenv vars [ ALSAPCM ] default ...


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In the good old times of ISA sound cards, it was not possible to create device nodes in /dev/ dynamically, so all devices had to be preallocated. This resulted in a limit of 8 sound cards, and the drivers were written with this limit in mind. Later, when devfs and USB were introduced, this limit was removed. However, the easiest way to do this was to make ...


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No built-in audio device supports playback or recording with less than two channels. How the single microphone channel is routed to the recording device depends on the hardware. This cannot be changed by software. Just record two channels and then throw one away.



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