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On 2013-10-01 16:30, Mario Mey wrote:
How does Pd or the soundcard outputs the signal > 1? Does it compress it?
depends on the actual backend and how you are using it. e.g. some backends only support values that cannot possibly exceed +-1; in these cases, the signal will be hard clipped! with some other backends (that support floating point values natively) you might get away with a compressed/limited signal.
if you don't know, it's best to assume that anything exceeding +-1 will be clipped. even if you do know, it's better to assume that they will be clipped.
I started this thread because I saw the high peaks in an array... but I never listened the sound distorted.
with very transient sounds (like clicks and pops) you might not hear the distortion, as these values are very broadband anyhow.
btw, make sure that your signal is not already distorted on the soundcard input. you cannot undo that...
fgamsdr IOhannes