Re: Triple play again

[andy butler <akbutler@tiscali.co.uk>]

On 06/01/2015 22:51, In Mobile wrote:

> Not sure though the note extraction is that quick. I do indeed remember 
> also that Axon/terratec stuff did extract pitch information from the 
> transient, then confirming/following using conventional pitch to midi. I 
> *seeem* to remember the best tracking at the time meant a processing time 
> of about 15ms.
> Tablet/PC softwares claim 6 ms (though it did not check the reality of the 
> claim). If not deluded, a 100 Hz fundamental would mean a period of 10ms. 
> But transient extraction if accurate wouldn't have to wait for a full 
> period ?

You're not deluded.


"While the GR-300 barely takes three milliseconds to respond, the VG-99/GR-300 
took about 23 milliseconds on average."

Source:-
 
http://www.premierguitar.com/articles/return-of-a-legend-does-the-vg-99-live-up-to-the-gr-300-1?page=2

It seems that the 3mS response is achieved without pitch extraction.

The first "VCO" isn't an oscillator at at, rather a saw tooth generator 
which is reset every cycle.
(and clipped to even out volume)

However the second oscillator is tunable and presumably a true VCO, I'd 
guess that it trails the first (?)

andy