Fons Adriaensen <fons@xxxxxxxxxxxxxx> writes: > Just like DA converters can be upsampling, an AD converter could > actually sample at a much higher rate than the nominal one and then > downsample digitally - for the same reason as the DA: it allows to use > a simpler analog antialising filter. ... and the popular card for SDR use was the Delta 44, which does exactly that. In 96 kHz mode it really does have 96 kHz input bandwidth: http://www.nitehawk.com/sm5bsz/linuxdsp/hware/delta44.htm In addition, having 4 inputs and 4 outputs means you can connect your microphone and headphones at the same time -- which is obviously useful for radio purposes! Cheers, -- Adam Sampson <ats@xxxxxxxxx> <http://offog.org/> _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
