[sdiy] Dumb PWM question

harrybissell at wowway.com harrybissell at wowway.com
Thu Feb 28 17:13:52 CET 2008


iirc the original comment involved using the technique
on arbitrary inputs (like maybe the radio ?).  In a
monophonic configuration it would probably be OK but 
with a poly input it would give mush, or worse than mush imho.

Symmetrical clipping works OK... but this method would have
the distortion located at the zero crossings... and that (from
experience) does not sound good.

imho of course...   ;^P

H^) harry



On Thu, 28 Feb 2008 06:40:48 -0700, Scott Gravenhorst wrote
> >> Harry said:
> >> 
> >> > Still bet it sounds like s**t
> 
> Didn't someone mention the idea of a digital simulation using 
> arithmetic methods to produce a sound file?
> 
> Was that done?
> 
> I would think that since while not animated, it is periodic (i.e., 
> the pattern repeats ever cycle), it shouldn't sound like s**t. 
>  Wouldn't periodicity give rise to a standard set of harmonics?
> 
> Why would it sound like s**t?
> 
> Even while animating the "PWM", I can't see why it would sound any 
> worse than a PWM pulse wave.
> 
> -- ScottG
> 
> -----------------------------------------------------------------
> 
> -- Scott Gravenhorst
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