Tag: stereo

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Pure Data Mid/Side Ring Modulation: Patch from Scratch (no talking)

Having some fun using mid/side stereo for sound design in Pure Data vanilla.

Here, we encode our stereo signal into mid/side with some simple math, then ring-modulate and delay the side material before decoding back into left-right stereo.

0:00 Bleep bloops in left-right stereo
1:12 Creating a mid/side encoder & decoder
2:19 Adding ring modulation to only the sides
3:23 Adding a delay to the sides
4:49 Expanding the range of ring modulation

Click here for a deeper explanation of mid/side stereo and synthesis:

More no-talking Pure Data videos here:

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Random*Source Serge Resonant EQ (ResEQ) & Stereo Processing (Mid/Side)

Exploring some ideas of using mono effects for stereo processing with the Eurorack Random*Source Serge Resonant EQ.

The Serge Resonant EQ is mono, so, usually, if you want to do stereo processing, you would need two of this (expensive) module to process your signal. With just a single module, though, if we mess with the two “comb” outputs, and consider mid/side processing, we can create some compelling stereo outputs.

0:00 Introduction, I/O overview
0:47 Mono signal in, mono signal out
1:10 Using the “comb” outputs to stereoize the signal
2:01 Mid/side processing the “comb” outs of a mono signal
3:14 Processing a stereo signal, side only
5:10 Processing a stereo signal, mid only
6:20 Changing the source material, side-only processing
9:16 Closing, next steps, mid-only processing

More on mid/side processing for synthesis here:

Gear in this video (affiliate links):

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Understanding Mid/Side Stereo in Synthesis (Pure Data, Reaktor, and Eurorack)

Mid/Side is a different way of working with stereo, where, rather than one channel for the left, and one for the right, you have one channel for the “mid” information, and one channel for the “side”. This format allows for different approaches to stereo processing, playing with the stereo image in new and interesting ways.

I’ve seen a lot of videos about mid/side for mixing or mastering but I thought I’d talk a bit about the potential for this approach in sound design, and how it can help us think about 3D audio and ambisonics too.

Modules in the Eurorack modular demonstration:
-Winterbloom Castor&Pollux dual oscillator
-Shakmat SumDif precision adder
-Hikari Instruments Ping Filter
-Instruo Tanh saturator