Antares auto-tune-for tdm and vst Manual Do Utilizador

 

function of time) that is periodic. This means that the waveform repeats
itself, such as the periodic waveform shown in the diagram, below.

Other sounds are more complex. The non-periodic waveform, above, is
from a violin section playing a single tone. Our ears still sense a pitch, but
the waveform does not repeat itself

This non-periodic violin section is a summation of a number of individually
periodic violins. The summation is non-periodic because the individual vio-
lins are slightly out of tune with respect to one another.

 

Some Terminology

 

The pitch of periodic waveforms is deÞned as the number of cycles per sec-
ond of the waveform. This unit is named Hertz (abbreviated Hz.). The stan-
dard instrumental tuning is A3 = 440 Hz. 

Pitches are often described relative to one another as intervals, or ratios of
frequency. For example, two pitches are said to be one octave apart if their
frequencies differ by a factor of two. Pitches which are integer multiples of
one-another sound more ÒharmoniousÓ when played together, whereas
pitches that are not are said to be ÒdissonantÓ.

Pitch ratios are measured in units called ÒcentsÓ. There are 1200 cents per
octave. For example, two tones that are 2400 cents apart are two octaves
apart and have a pitch ratio of 4 (or 1/4). 

Periodic Waveform:
Digiwave

Non-periodic Waveform:
Violin Section