Ring Mod – Frequency Shifters. (in: DSP and Plugin Devel…)

By: Dave_p
13 May 02:01

So, it’s somewhat of a black box to me.

But in essence, sin(x) * input will emit the positive and negative tones at the rate of sin(x), presuming the frequency is audible.

And if you provide a series of sin(x) * input, then there’s a series of undertones and overtones, and if we shift the rate of the carrier wave, sin(x), then we start to get something that resembles a frequency shifter [albeit very crude – and dishonest sounding].

Although most frequency shifters are created with Hilbert tra…

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