Sound Card Compatibility
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RTFM!
As it turns out there is a block in GNU Radio called blks2.rational_resampler_fff() that can be used for resampling audio. The audio/test_resampler.py example show to use it.
ALSA
| Computer (ALSA) | Ver | 8 kHz | 16 kHz | 22.05 kHz | 24 kHz | 32 kHz | 44.1 kHz | 48 kHz | 96 kHz |
|---|---|---|---|---|---|---|---|---|---|
| SOLARIS (Ubuntu 9.04-64) | 3.2 | Yes | Yes | ||||||
| ROSETTA (Ubuntu 9.04-32) | |||||||||
| GAIA (Ubuntu 8.10-64) | |||||||||
| PC146-ALC (Ubuntu 9.04-32) | |||||||||
| PC164-ALC (Ubuntu 9.04-32) |
Switch to OSS
Since ALSA really sucks, maybe a manual conversion to OSS would be worth trying
- https://help.ubuntu.com/community/OpenSound
- http://4front-tech.com/
- See comments on this blogs. According to them, BSD has superior sound support and mixing done in the kernel. There is also a more recent followup.
| Computer (OSS) | Ver | 8 kHz | 16 kHz | 22.05 kHz | 24 kHz | 32 kHz | 44.1 kHz | 48 kHz | 96 kHz |
|---|---|---|---|---|---|---|---|---|---|
| SOLARIS (Ubuntu 9.04-64) | 3.2 | Yes | Yes | Yes | Yes | Yes | Yes | ||
| ROSETTA (Ubuntu 9.04-32) | |||||||||
| GAIA (Ubuntu 8.10-64) | |||||||||
| PC146-ALC (Ubuntu 9.04-32) | |||||||||
| PC164-ALC (Ubuntu 9.04-32) |
PEGASUS
PEGASUS runs OSX 10.5 and supports the following sample rates:
