Cherry Audio Releases Mercury-4 Compuphonic Synthesizer! – Page 14 – Instruments Forum

Maybe I’m insane or hearing things, but it sounds like there’s something interesting happening on the initial attack of the analog synths single notes. Like a timbre change or something that is more pronounced on the analog.

Looking at the audio in my DAW the analog is doing some very weird stuff. In the beginning when you’re doing saw waves with no chorus or saturation, the analog waveforms have a strong DC offset (not sure if this is technically the correct engineering term, but the basically the positive peaks are way lower in magnitude then the negative waveform peaks, making the entire waveform look as if it had been shifted downward). Weirdly, the the positive peaks, which have a small magnitude, it almost looks like there’s some clipping. The peaks are mostly shaved off at certain value, it looks pretty flat. The negative peaks, even though they are lower in value and thus should be closer to clipping, have random values — they don’t look like they’ve been lopped off at the same value.

It looks as if earlier in the circuitry there was a DC offset in the OPPOSITE direction, where positive values were much higher in magnitude, then the signal got clipped, then later in the circuitry something caused a DC offset in the opposite direction. The amount of positive half “clipping” visible seems to change with note pitch too. There also seems to be microfluctuations in timbre that I don’t think is just purely noise.

Someone a few weeks ago said that emulating an analog oscillator is as simple as using a simple wavetable. I don’t think this is true at all, unless maybe it’s some insane multi-dimensional array of wavetables with some sort of RNG implementation. I don’t think anyone who thinks the oscillator portion of emulation is simple is ever going to make a convincing analog emulation, but then again, maybe no one will.

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