> You have a waveform with lots of little square steps in it. And why is that? Moreover, isn't that kinda like having less bit resolution?
cheers 2015-05-15 14:51 GMT-03:00 Martin Peach <[email protected]>: > You have a waveform with lots of little square steps in it. Those steps > contain high frequencies in the same way a square wave does. Dynamic range > is determined by the number of bits used to encode the signal, and the > signal/noise ratio, not the sample rate. > > Martin > > On Fri, May 15, 2015 at 1:18 PM, Alexandre Torres Porres <[email protected] > > wrote: > >> Howdy, I have a patch attached to show how downsampling produces >> artifacts/distortion for a 440 sine wave. I don't hear "aliasing" and I >> think it couldn't be foldover at all because 440 is below the nyquist. >> Moreover, I hear harmonic higher pitches - so it seems like a harmonic >> distortion from the original sine wave that I can also still perceive. This >> kind of distortion happens when you have a reduced dynamic range. >> >> Another things is that I heard someone saying how increasing sample rate >> improves dynamic range, but I can't find this information around. Not sure >> it it's really true, if someone says it is so, please send me a source, ok? >> But the thing is that the artifacts from this patch could be the result of >> a smaller SNR. >> >> Hope you can help me sort this out. >> >> thanks >> >> _______________________________________________ >> [email protected] mailing list >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/listinfo/pd-list >> >> >
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