[sdiy] Vibrato range

Tom Wiltshire tom at electricdruid.net
Tue May 10 01:10:33 CEST 2016


On 9 May 2016, at 23:50, "Richie Burnett" <rburnett at richieburnett.co.uk> wrote:

>> Would it be possible to hear the side effects of the steps in the sweep? Like having a tiny FM with 1 kHz.
> 
> Many synths update their oscillators at a "control rate" of around 1kHz. e.g. Roland Juno 106.  You can see sidebands from 1kHz pitch update rate if you deeply modulate the oscillator's pitch with a fast enough LFO and look at the spectrum.  I think you'd be hard pushed to hear the sidebands for low-pitched notes using typically rich oscillator waveforms where the dense harmonics of the waveform would perceptually mask any low-level inharmonic sidebands.

Very interesting.

Thanks,
Tom




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