[sdiy] Help, I'm Desperate! (Charge Injection with DG408)

[David G Dixon]

Hi Adam,
 
Actually, it's because the LFO signal I'm using is not perfectly centred at
0V.  I could eliminate the longer Channel 1 by moving the fader up every so
slightly to centre the CV signal.  However, my fader has a centre detent,
and I left it stuck in the detent for the video.
 
If you feed this unit a perfectly centred LFO signal, then you should get
exactly equal durations on each channel (to the limit of all the 1%
resistors I'm using in both the CV shaping and digital switching circuits).
 
I'm going to make a better video tonight.  I'll try to show the unit off in
a better light.  I also want to use S&H noise as a CV signal to show that
effect, with more interesting and varied audio signals.
 
Cheers,
Dave
 

  _____  

From: Adam Inglis [mailto:21pointy at tpg.com.au] 
Sent: Wednesday, January 02, 2019 2:17 AM
To: David G Dixon
Cc: Synth DIY
Subject: Re: [sdiy] Help, I'm Desperate! (Charge Injection with DG408)


Hi David 
Is it a feature of the unit, or is it a feature of the CV you are feeding
it, that makes the scan linger on channel 1 longer than the other channels?

cheers
Adam


On 2 Jan 2019, at 6:28 PM, David G Dixon <dixon at mail.ubc.ca> wrote:

Hey Team,
 
The scanner video is up:
 
https://www.youtube.com/watch?v=hZGskck31hs
 
It's a really shitty video, but hopefully you'll get the idea of how it
works.
 
Cheers,
Doc Sketchy
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