[alsa-devel] Backported sbxfi driver (UNTESTED!)

[Takashi Iwai]

At Wed, 15 Oct 2008 23:57:05 +0200,
Bjoern Olausson wrote:
> 
> So now the funny part:
> 
> I was testing a few samplerates:
> Used a 1 kHz sine, 0 dBFS, 16 bit mono wave file, 96 kHz sample rate
> and rsampled it with sox:
> for i in 88200 50400 50000 48000 47250 44100 44056 32000 22050 11025 8000 ; do
> sox 0_16_96000.wav -r ${i} 0_16_${i}.wav ; done
> 
> and played them with aplay:
> 
> for i in 96000 88200 50400 50000 48000 47250 44100 44056 32000 22050
> 11025 8000 ; do echo "Now playing 0_16_${i}.wav" ; aplay 0_16_${i}.wav
> ; echo "DONE" ; done
> 
> 
> 96000 --> O.K.

Does "O.K." mean really OK, or with any issue?
Other people reported about the glitch sounds, for example.

> 88200 --> No Sound
> 50400 --> No Sound
> 50000 --> No Sound
> 48000 --> O.K.

The same question.

> 47250 --> No Sound
> 44100 --> No Sound
> 44056 --> No Sound
> 32000 --> No Sound
> 
> 22050 --> SYSTEM FREEZ
> Playing WAVE '0_16_22050.wav' : Signed 16 bit Little Endian, Rate 22050 Hz, Mono

Does hang-up this happen with stereo samples, too?
Also, any chance to get Oops messages?

> 
> 11025 --> SYSTEM FREEZ
> Playing WAVE '0_16_11025.wav' : Signed 16 bit Little Endian, Rate
> 11025 Hz, Mono
> 
> 8000 --> No Sound
> 
> Let me know if I can help out testing some more stuff

Try to build with XXX_48K_ONLY defined in sbxfi.c.  And try 48kHz
samples (and others).

Also, please show the output of lspci -nv to see the PCI SSID.


thanks,

Takashi