Cycling 74 » Topic: Saturation effect – where to start? http://cycling74.com/forums/topic/saturation-effect-where-to-start/feed Thu, 20 Jun 2013 05:29:52 +0000 http://bbpress.org/?v=2.2.4 http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-65455 <![CDATA[Saturation effect – where to start?]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-65455 Sat, 01 Dec 2012 01:54:40 +0000 Hugues Hi,

How would you go about creating a saturation effect? Any tips welcome.

]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235867 <![CDATA[Re: Saturation effect – where to start?]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235867 Sat, 01 Dec 2012 04:51:58 +0000 rjungemann There are a few different patches that can work, but if I understand your question correctly, you could run your signal into a [*~] to amplify it, then run that signal into a [tanh~] which has the effect of making quieter amplitudes louder but keeping louder amplitudes relatively consistent. Other functions will work too.

[tanh~] may be a little expensive, so you may consider using a function that approximates it, or use a lookup table.

Consider looking into wavefolding functions as well. For example, [cosx~] can be used instead of [tanh~] for an interesting wavefolding effect. When a sound’s amplitude goes above the maximum, the signal “folds back” towards 0. If you were to continue to amplify the sound even further, it would bend back towards the maximum again, and so on. It reminds me of either a gain effect or less extreme phase modulation.

Hope this helps, let me know if I’m off with my response.

]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235868 <![CDATA[Re: Saturation effect – where to start?]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235868 Sat, 01 Dec 2012 17:30:03 +0000 Hugues Thank you for taking the time to answer, this is helpful and should get me started. I guess what I’m actually interested in is waveshaping in order to generate “living” artifacts. I tried the [cosx~] object but somehow it seems less convincing… you just need to feed your amplified signal into it, nothing else right?

]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235869 <![CDATA[Re: Saturation effect – where to start?]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235869 Sat, 01 Dec 2012 18:45:06 +0000 mzed Try adding a little DC offset (+~ 0.1 or something) to the signal before going into tanh~. Asymmetrical distortion is a little richer.

]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235870 <![CDATA[Re: Saturation effect – where to start?]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235870 Sat, 01 Dec 2012 19:16:35 +0000 Rodrigo I present you a goldmine:

http://cycling74.com/toolbox/stkr-waveshaping/

]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235871 <![CDATA[Re: Saturation effect – where to start?]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235871 Sat, 01 Dec 2012 20:55:40 +0000 n00b_meister Goldmine is right Rodrigo, what an astoundingly good resource.

]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235872 <![CDATA[Re: Saturation effect – where to start?]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235872 Sat, 01 Dec 2012 21:50:43 +0000 Hugues Cheers guys !

]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235873 <![CDATA[Re: Saturation effect – where to start?]]> http://cycling74.com/forums/topic/saturation-effect-where-to-start/#post-235873 Sun, 02 Dec 2012 09:09:37 +0000 oscii Also I can suggest to look at the musicdsp site, there are some examples of waveshaping algorithms: http://www.musicdsp.org/archive.php?classid=4

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