Re: [linux-audio-user] Wave subtraction

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Subject: Re: [linux-audio-user] Wave subtraction
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Mon Nov 05 2001 - 18:31:26 EET


On Sun, Nov 04, 2001 at 11:03:07PM -0500, Ross Vandegrift wrote:
> Hello all,
>
> I'm looking for a GNU/Linux sound related program that can do subtractive synthesis of two waveforms. I'll take either GUI or command line. It would also be ok ifI had to invert the WAV about 0 and do additive synthesis. Thanks for any pointers.

Additive synthesis is not adding waves together with the mathematical +,
nor is subtractive mathematical -.

It refers to the adding of partials, (with harmonic sinwaves for eg.) or
the removal of partials (with filters).

In the general case signal a + signal b does not sound significantly
different to signal a - signal b.

- Steve


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