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Sub Harmony: the Sub Harmonic Synthesizer is a particular process,
already introduced in the first part of the manual, that isn't actually
related to the RMS compression one.
The Sub Harmonic Synthesizer is intended to be an "extra" process
available to the user there where the RMS Compressor is chosen for
processing a source addressed to a "background" use as in clubs or
similar.
There, the possibility to have synthesized basses in order to extend the
band also when the musical program is poor of harmonics on the low
frequencies, can help in improving the quality of the background music
and to gain a "heavier" or more vibrant sound.
The Sub Harmonic Synthesizer is a process synthesizing the first lower
harmonic of the frequencies ranging from 40Hz to 500Hz, detected in the
original signal.
This means that there where in the original signal are detected
frequencies from 40Hz to 500Hz, sub harmonics from 20Hz to 250Hz are
generated.
Fig. F
As can be seen in the Fig F, however, the synthesized sub harmonics are
not generated in the low harmonics' band with the same amplitude, but
with a Peak on 65Hz or on 90Hz and then with decreasing amplitude
going up from 65Hz/90Hz to 250Hz and down to 20Hz.
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