> The stuff around 14 kHz in R is strange. It's noise, not a > single frequency interference. No idea where it comes from. Last time I saw a random peak that strong, it turned out to be a byproduct from an opamp that was underdamped and self-oscillating at about 10MHz... It moved around just a little bit as the oscillation wasn't itself entirely stable. Complete shot in the dark, I do't expect to ever see it again (except in homebrew designs that are slapped together without alot of design analysis). Ah, the fun of using sound cards as analyzers :-) Monty _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user