Hello, I have tried using alsa-lib to query hardware capabilities in order to capture sound at natively supported settings using the built-in sound card (ALC269VC).
However, I have found that `snd_pcm_hw_params_get_format_mask()` returns different results from what is shown in the /proc/asound/card[...]/codec#[...] file or what is returned by calling `hda-verb /dev/snd/hw[...] 0x[...] 0xF00 0x0A`. Namely, according to hda-verb, the supported capturing parameters are 16/20/24 bits per sample, as well as sampling rates of 44.1/48/96/192 kHz. Alsa-lib, on the other hand, claims that the supported formats (for `hw:0,0` in this case) are S16LE and S32LE, while the sampling rates are the same. Is this normal ALSA behavior, or is that a bug in ALSA? I expected that ALSA returns something like: S16LE, S20LE, S24LE. Kind regards, Feli Kramer _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
