The higher number of filters will yield the best possible results from the vocoder. The number of filters corresponds with the quality of the result. Let us take an example, if a modulator gets a kick drum as an input, the lower frequencies of the carrier will be mapped onto it. The frequencies that are similar in the range are mapped together so that the original sound retains the base structure. The Filter Bankįilter banks are said to be the backbone of the vocoders where the sounds are split into different bands of frequencies. This produces the envelope for the carrier to follow. Each frequency band measures the dynamics of the modulator.
Think about it like a gate for the carrier.Ī modulators signal is split up into the frequency bands of the vocoder. The ModulatorĪ vocoder will analyze the dynamics of the modulator and use that signal as an envelope for the effect. This means that there is a pretty good amount of volume across the whole frequency spectrum. The CarrierĪ carrier signal is usually something that is harmonically rich. The modulator is used as an envelope source. The carrier is used to provide harmonic richness to the sound.
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