Edison ED!SON WaMi Box, Руководство пользователя

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Ed!son –Instrument Editor 11
Modulators
The synthesizer of our WAMI BOX can generate audio signals, shape them with
the aid of a filter and control their volume. So far, we have only been dealing with
static parameters - once set, they change the basic signal, but otherwise sound
fairly stiff and boring. Modulators help rectify this situation. Modulators are
control signals which can be set over a broad range to dynamically control
important audio parameters such as the pitch, filter frequency or volume. Two
important modulator types are available in the WAMI BOX: LFOs (low
frequency oscillators) and envelope generators (abbreviated as EG in Ed!son).
LFOs are present in practically all synthesizers and generate cyclical control
signals with a low frequency and adjustable waveform. If an LFO is used to
control an oscillator, for example, pitch fluctuations are the result, from slight
(organ vibrato) to intense (siren effect).
The WAMI BOX has two LFOs per voice.
Unlike LFOs, envelope generators do not involve cyclical control signals, but
specific progressions which are triggered by the key. A well-known example are
volume envelopes. These can be used to determine whether the volume increases
gradually, as with string sounds, or abruptly to the maximum value as in a piano.
Signal shaping Volume Output signal Audio signal generation
Volume
modulation
Filter modulation Frequence
modulation
Filter