I have a question on how to use the RingMod effect in order to recreate some sounds from the Commodore 64’s SID chip. Basically what the C64 does (as far as I understood) is taking one voice/oscillator which is a triangle waveform and multiplying it with the value of another voice/oscillator which can be (I guess) any waveform, but in my case a rectangle (C64) or square (ReNoise).
The RingMod effect in ReNoise can be applied to a single track; you can pick one of the following oscillators: sine, triangle, saw, square. The note for modulating can be set dynamically so I can do that too (manually) by looking at the notes from another track. That was the theory and I guess everyone of you knew that.
Trying that out didn’t quite worked out. I took the ReNoise chip_triangle instrument without any ADSR modulation applied on it and with RingMod it sounds distorted. Also used a plain triangle sample from a C64, applied exact the same ADSR values; same result. In the track I’m using the exact notes and playing them at the exact speed.
Please take a look at the sounds. Am I missing something? Do I need another effect on top of it? Can this be achieved without any additional plugins? Using ReNoise on MacOS. I’d be grateful for any help.
Original C64 sound:
ReNoise (same notes, triangle waveform, without RingMod):
ReNoise (with RingMod applied base note for this snippet is C-3):