[alsa-devel] Verifying mixer dB data/Invalid dB data from USB cards, especially Aureon 5.1 MkII

[Raymond Yau]

2010/2/17 Eliot Blennerhassett <linux at audioscience.com>

> 2) Absolute calibration of output levels.
> (This is *not* required to solve Lennart's problem)
> This would be required if you wanted two different (brands of) soundcard
> to output the same voltage for given source pcm.
>
>
On windows ,there are benchmark program to compare the sound card 's SNR at
different rate , format

http://audio.rightmark.org/

can the program be used to measure SNR ?