Re: [LAD] (Modular) Synth and Clipping

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To: Linux Audio Developers <linux-audio-dev@...>
Date: Saturday, June 15, 2013 - 4:22 pm

On Sat, Jun 15, 2013 at 02:56:13PM +0100, Aurélien Leblond wrote:

An analogue system with enough headroom wouldn't clip. A DAC will
clip in those circumstances.

> - What method of clipping is used will give a "personality" to the

You'd also need to avoid generating harmonics above fs/2 to prevent
aliasing, unless that's part of the "personality" you're going for.

> - Hard clipping is something of the digital world - it doesn't exist

Wrong. An analogue amplifier with lots of negative feedback, eg. a
typical op amp or power amp, will usually hard clip.

> - Soft clipping will deform any waves of amplitude -1/1 even if it

Yes, although clipping threshold can be any level you like (within
reason) in floating point.

> - Is there a preferred stage for clipping? In the case of a filter,

That depends on whether you want to modify the frequency response
before or after the clipping harmonics are added. Both can be valid
options.

John
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Messages in current thread:
[LAD] (Modular) Synth and Clipping, Aurélien Leblond, (Sat Jun 15, 1:56 pm)
Re: [LAD] (Modular) Synth and Clipping, Tim Goetze, (Sun Jun 16, 10:57 am)
Re: [LAD] (Modular) Synth and Clipping, Fons Adriaensen, (Sun Jun 16, 11:58 am)
Re: [LAD] (Modular) Synth and Clipping, Dominique Michel, (Sat Jun 15, 6:50 pm)
Re: [LAD] (Modular) Synth and Clipping, John Rigg, (Sat Jun 15, 8:34 pm)
Re: [LAD] (Modular) Synth and Clipping, Dominique Michel, (Sat Jun 15, 9:33 pm)
Re: [LAD] (Modular) Synth and Clipping, John Rigg, (Sun Jun 16, 10:59 am)
Re: [LAD] (Modular) Synth and Clipping, Dominique Michel, (Sun Jun 16, 7:15 pm)
Re: [LAD] (Modular) Synth and Clipping, Fons Adriaensen, (Sat Jun 15, 9:24 pm)
Re: [LAD] (Modular) Synth and Clipping, John Rigg, (Sat Jun 15, 4:22 pm)