hi hardoff
here is an other kind of waveshaping (i think). the idea was to divide
a signal by it self so you would get a rectangle.
s / s = 1
and further if divide a signal with a range from the signals own value to 1 you
don't get a hard rectangle
i try to write the formula
s / (slider
Claude Heiland-Allen wrote:
Otherwise, I think there are some theorems about waveshaping and the
amount of oversampling necessary to avoid aliased frequencies and that
nasty digital sound...
http://groups.google.co.uk/group/comp.dsp/msg/9576a7a248851937
what's the best and most cpu efficient way to clip a signal in an
analogue fashion, rather than getting nasty digital distortion?
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hard off wrote:
what's the best and most cpu efficient way to clip a signal in an
analogue fashion, rather than getting nasty digital distortion?
waveshaping
mfga.sdr
IOhannes
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On Tue, 2007-05-08 at 19:18 +0900, hard off wrote:
what's the best and most cpu efficient way to clip a signal in an
analogue fashion, rather than getting nasty digital distortion?
Have you tried waveshaping? I.e. use your signal as an index to a
function (usually stored in a table)? A good
hard off wrote:
what's the best and most cpu efficient way to clip a signal in an
analogue fashion, rather than getting nasty digital distortion?
I quite like [expr~ tanh($v1)] - but it isn't especially cpu efficient.
To hear it in action, just about every sound in this has been
through
Try tanh function mapped to the range of about -5 +5 and a small signal input.
http://mathworld.wolfram.com/HyperbolicTangent.html
Here's a nice approximation with five multiplies
http://www.musicdsp.org/archive.php?classid=5#238
what's the best and most cpu efficient way to clip a signal in an
On 08/05/2007, at 13.11, [EMAIL PROTECTED] wrote:
Here's a nice approximation with five multiplies
http://www.musicdsp.org/archive.php?classid=5#238
Indeed. I had to see it. For anyone interested: http://puredata.info/
Members/stffn/tanh-aprox.png/
Hallo,
[EMAIL PROTECTED] hat gesagt: // [EMAIL PROTECTED] wrote:
Try tanh function mapped to the range of about -5 +5 and a small signal input.
http://mathworld.wolfram.com/HyperbolicTangent.html
Here's a nice approximation with five multiplies
Hallo,
Frank Barknecht hat gesagt: // Frank Barknecht wrote:
Here's a nice approximation with five multiplies
http://www.musicdsp.org/archive.php?classid=5#238
That's a nice version! Attached is a comparision of both in Pd, looks
(and sounds) good.
Oh, and even it uses only four
quick tanh looks good. i put in a dollar and my cpu gave me 96 cents change!
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Hallo!
quick tanh looks good. i put in a dollar and my cpu gave me 96 cents change!
I did not follow the whole thread, so maybe this was already said.
But I would also do the tanh interpolation with a wavetable.
You can simply once use this function to generate the wavetable and then
use it
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