when would it be possible to use this sound card for Hamfax
(Line in to AIF: 16-Bit, sampling rate 8 kHz, mono and arecord working with au-Format)?
with the würgaround help of Ragna Jensens .asoundrc is a receiption possible.
The cpuload acts by 50%, maybe little less.
On my rpi I have to restart the receiption several times until the spectrum graph activates.
The copy is very slant and without heavy correction not readable.
Maybe an unproper sampling rate is the reason of heavy slant and several restarts of receiption.