Adjusting Audio/CV Range

For discussion of the Voltage Modular synthesis ecosystem.
Amine_Belkhouche
Posts: 17
Joined: Fri Jun 10, 2022 5:44 pm

Adjusting Audio/CV Range

Post by Amine_Belkhouche »

Hey everyone,

I was experimenting with using a sequencer as an oscillator by using the steps to create the waveform shape while using an oscillator to read that shape using the external clock.
Sequencer Oscillator.png
Sequencer Oscillator.png (318.47 KiB) Viewed 7468 times
As you can see the range of the output is from 0 to 5 CV which is the range of the sliders in the sequencer. My question is, how do I subtract 2.5 volts so that I can get the waveform to straddle 0 volts? I am not talking about attenuation here, I'd like to figure out how I could get those values to output -2.5 to 2.5 volts and then perhaps amplify that so that I can adjust the waveform so that it outputs -5 to 5 volts. I remember modifying signals in such a way in Pure Data but I don't know how to do it in VM.

While I recognize this may not be important in this particular application, I still wanted to know because I feel like this would be a useful thing to have in the toolbox. Please let me know and thank you!
User avatar
huggermugger
Posts: 336
Joined: Tue Jun 29, 2021 6:42 pm

Re: Adjusting Audio/CV Range

Post by huggermugger »

Andrew Macaulay's Voltage Processor does it for me. First I applied a DC offset of -2.5v. Then I used a Trim value of +6dB to double the amplitude, effectively restoring the full dynamic range of the signal. There are surely other ways to do it as well.
Attachments
Screen Shot 2022-06-14 at 1.22.25 PM.png
Screen Shot 2022-06-14 at 1.22.25 PM.png (525.78 KiB) Viewed 7463 times
Amine_Belkhouche
Posts: 17
Joined: Fri Jun 10, 2022 5:44 pm

Re: Adjusting Audio/CV Range

Post by Amine_Belkhouche »

Hey huggermugger,

I just saw your other reply! Much appreciated, that's definitely a convenient set-up!
UrbanCyborg
Posts: 588
Joined: Mon Nov 15, 2021 9:23 pm

Re: Adjusting Audio/CV Range

Post by UrbanCyborg »

Benard's Map Range and Poly Map Range will do it in one module.

Reid
Cyberwerks Heavy Industries -- viewforum.php?f=76
User avatar
utdgrant
Posts: 535
Joined: Wed Apr 07, 2021 8:58 am
Location: Scotland
Contact:

Re: Adjusting Audio/CV Range

Post by utdgrant »

If you have Voltage Modular Core edition, you could try messing around with this 'graphical waveshaper' patch I made using the Eight-To-One Switch.
______________________
Dome Music Technologies
Amine_Belkhouche
Posts: 17
Joined: Fri Jun 10, 2022 5:44 pm

Re: Adjusting Audio/CV Range

Post by Amine_Belkhouche »

UrbanCyborg wrote: Tue Jun 14, 2022 5:53 pm Benard's Map Range and Poly Map Range will do it in one module.

Reid
Thank you, I just took a look at this and it looks like an easy to implement what I had in mind for other applications as well.
ColinP
Posts: 939
Joined: Mon Aug 03, 2020 7:46 pm

Re: Adjusting Audio/CV Range

Post by ColinP »

You can use two cables to double the 0..5V to 0..10V then add -5V using the DC Source module...
times2minus5.png
times2minus5.png (386.9 KiB) Viewed 7445 times
Amine_Belkhouche
Posts: 17
Joined: Fri Jun 10, 2022 5:44 pm

Re: Adjusting Audio/CV Range

Post by Amine_Belkhouche »

ColinP wrote: Tue Jun 14, 2022 8:20 pm You can use two cables to double the 0..5V to 0..10V then add -5V using the DC Source module...
Brilliant! Thank you for showing me this.
User avatar
honki-bobo
Posts: 305
Joined: Sat Nov 09, 2019 1:18 pm

Re: Adjusting Audio/CV Range

Post by honki-bobo »

Scaling and offsetting a signal in VM Nucleus:

viewtopic.php?t=2140
Image
Monkey Business Audio
Modules - Music - Twitter - YouTube
Amine_Belkhouche
Posts: 17
Joined: Fri Jun 10, 2022 5:44 pm

Re: Adjusting Audio/CV Range

Post by Amine_Belkhouche »

honki-bobo wrote: Wed Jun 15, 2022 11:43 am Scaling and offsetting a signal in VM Nucleus:

viewtopic.php?t=2140
Thank you for this, I just gave this a try and saved it as a cabinet. I also subscribed to your YT channel!
Post Reply

Return to “Voltage Modular”