At Thu, 16 Oct 2008 22:07:02 +0200, Bjoern Olausson wrote: > > I found a site with a large range of files: > http://bellatrix.ece.mcgill.ca/Documents/AudioFormats/WAVE/Samples.html > > aplay plays all files it is capable to decode. No crackel, no noise, just fine. > > glass.wav > Signed 16 bit Little Endian, Rate 8000 Hz, Mono > > M1F1-int16-AFsp.wav > Signed 16 bit Little Endian, Rate 8000 Hz, Stereo > > M1F1-int24-AFsp.wav > Signed 24 bit Little Endian in 3bytes, Rate 8000 Hz, Stereo > > M1F1-int32-AFsp.wav > Signed 32 bit Little Endian, Rate 8000 Hz, Stereo > > M1F1-uint8-AFsp.wav > Unsigned 8 bit, Rate 8000 Hz, Stereo > > stereol.wav > Signed 16 bit Little Endian, Rate 22050 Hz, Stereo > > Utopia_Critical_Stop.wav > Signed 16 bit Little Endian, Rate 22050 Hz, Mono > > Thought when I try to play the first one with mplayer ---> FREEZZZZZ > Spiele glass.wav. > Audio file-Dateiformat erkannt! > ========================================================================== > Öffne Audiodecoder: [pcm] Uncompressed PCM audio decoder > AUDIO: 8000 Hz, 1 ch, s16le, 128.0 kbit/100.00% (ratio: 16000->16000) > Ausgewählter Audiocodec: [pcm] afm: pcm (Uncompressed PCM) > ========================================================================== Then likely a problem with mplayer. Can you check which parameters (period_size, buffer_size) does mplayer use, and try to pass to aplay via --period-size and --buffer-size options? > Amarok with backend ALSA plays all files it can decode without problems. > > All Signed 16 bit Little Endian, Rate 8000 to 96000 Hz, Stereo do work > (with the same oszilating noise described in my previous post with the > mono files [I just joned two to get stereo]) Hm, mono isn't supported by this hardware, so alsa-lib simply duplicates the signals to the stereo. There shouldn't be any difference in that manner... Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
