[linux-audio-user] recording bats?

Clemens Ladisch clemens at ladisch.de
Tue Nov 9 02:54:18 EST 2004


Eric Dantan Rzewnicki wrote:
> PS just to make this somewhat linux related, if 96KHz is not enough, are
> there any alsa supported cards that do high enough sample rates?

TV cards based on the Bt878/Bt879 chips use the same ADC for video and
audio, so they support quite high sample rates.

sound/Documentation/Bt87x.txt says:

| Analog audio mode (A/D)
| =======================
|
| The second device (hw:X,1) gives you 8 or 16 bit mono sound.  Supported
| sample rates are between 119466 and 448000 Hz (yes, these numbers are
| that high).  If you've set the CONFIG_SND_BT87X_OVERCLOCK option, the
| maximum sample rate is 1792000 Hz, but audio data becomes unusable
| beyond 896000 Hz on my card.


HTH
Clemens




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