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

[Cynthia Webster]

John Mahoney wrote:
> At 05:40 PM 11/2/2009, Electronic Battle 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.
> ...
>
> Think what you want, EB, but what Peng described is the synthesizer 
> convention.
>
> Sawtooth and ramp waves (using the terms as per convention, ahem) 
> sound alike in isolation, but they obviously produce very different 
> effects when used for low frequency modulation. That's why you'll find 
> both many LFOs and VCOs that output both of them. (The 
> Synthesizers.com VCO is one example.)

The Zeroscillator is another example!


Cynthia


>
> John
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>