[sdiy] They aren't sawtooths, they're ramps

[cheater cheater]

Jean Baptiste Joseph Fourier (March 21, 1768 – May 16, 1830) was a
French mathematician and physicist best known for initiating the
investigation of Fourier series and their application to problems of
heat transfer. The Fourier transform and Fourier's Law are also named
in his honour. Fourier is also generally credited with the discovery
of the greenhouse effect.

On Mon, Nov 2, 2009 at 22:40, Electronic Battle
<electronicbattle at googlemail.com> wrote:
>>> Please can someone talk about the difference between sawtooth and ramp
>>> waveforms and whether they sound different?
>
>
>> Sawtooth - sharp transition  from low to high then falls linearly back to
>> low. repeat.
>
>> Ramp - linear rise from low to high, sharp transition high to low. repeat.
>
>
> That's not the case at all; it is just describing the same waveform twice.
> The defining difference is the nature of the transition being linear or
> exponential, as per my original email.
>
> It would be interesting to note the harmonic structure of either. I don't
> know enough about Fourier to be able to analyse it myself; however, it is
> still the case that they wil be different but whether the *audible*
> difference is noteworthy remains to be seen!
>
> Agreed, as an LFO the linear ramp and the exponential saw would sound
> different (as a modulating source).
>
> EB
>
>
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