MOTM

I'm somewhat confused; why does the mini-wave need an input driver?  What
are you driving?  I thought the mini-wave was a sound source by itself...

--PBr

> -----Original Message-----
> From:	Dave Bradley [SMTP:daveb@...]
> Sent:	Monday, September 11, 2000 10:20 PM
> To:	motm@egroups.com
> Subject:	[motm] Wiard Mini-wave review pt. 2
> 
> OK, so to get the best performance out of this system you've got to 
> calibrate it. The input waveform needs to be precisely -5V to +5V to 
> play all the samples in any given wavetable. I found my 300s to have 
> slightly less amplitude than that. I trimmed the Wiard's input gain 
> and offset and watched the output on a scope to get a good clean sine 
> wave output (using a sine wave sample, natch). You could do the same 
> 2 trims by ear, since you can easily hear when the sine distortion is 
> at a minimum. I also found that using my 320 was not optimal after I 
> had the Mini-Wave calibrated to the 300s, which were pretty 
> consistant with each other. So I may look into some precision 
> resistors around the 300 VCO and 320 LFO waveshaper circuits, to get 
> exactly 10V peak to peak outputs for all modules which might drive a 
> Mini-Wave.
>