Propellerhead Reason - 4.0 Provozní příručka stáhnout pdf (Strana 326)

BV512 VOCODER

324

BV512 parameters

On the front panel of the BV512 Vocoder, you will find the following parameters and

displays:

Parameter

Description

Bypass/On/Off

switch

In Bypass mode, the carrier signal passes through the device un-

affected and the modulator signal is disregarded. In On mode,

the device outputs the vocoded or equalized signal. Off mode

cuts the output, silencing the device.

Level meters Show the signal level of the carrier and modulator signals, re-

spectively.

Band switch Selects the number of filter bands (4, 8, 16 or 32) or FFT (512)

mode.

Equalizer/Vocoder

switch

Determines whether the BV512 should work as a vocoder or an

equalizer. In Equalizer mode, the Modulator input is disregarded

(see page 323).

Modulation level

display

The upper display shows the spectrum of the modulator signal.

Frequency band

level adjust

The lower display allows you to adjust the level of each filter fre-

quency band, by clicking and dragging the corresponding bar. In

vocoder mode this affects the vocoded sound. In equalizer mode,

this is where you cut or boost frequencies. To reset a band to ±0

dB, press [Command] (Mac) or [Ctrl] (Win) and click on its bar in

the display. To reset all bands, select “Reset Band Levels” from

the device context menu.

Note: when FFT (512) mode is selected, each of the 32 bars in

the display corresponds to several frequency bands, with bars to

the right in the display controlling progressively more bands (due

to the FFT bands being linearly distributed over the frequency

range).

Hold button Clicking this button “freezes” the current filter settings. While the

button is lit, the modulator signal doesn’t affect the sound - the

carrier signal is filtered with the settings as they were the moment

you activated Hold. Click the button again to turn off Hold. Hold

is also automatically reset (turned off) when you stop sequencer

playback - just like the pitch bend and modulation wheels on

synth devices.

This function can be controlled via CV or MIDI, for sample and

hold-like effects.

The Hold button is not available in Equalizer mode.

Attack This is a global attack time control, affecting all envelope follow-

ers (see page 320). Normally you probably want this set to zero,

to make the vocoder react as quick as possible. Raising the At-

tack time can be useful for “smearing” sounds, creating pads,

etc.

Not available in Equalizer mode.

Decay Similarly, this controls the decay time for all envelope followers,

i.e. how quick the filter band levels drop. Adjust this according to

taste and context.

Not available in Equalizer mode.

Shift Shifts the carrier filters up or down in frequency, drastically

changing the character of the vocoded (or equalized) sound. This

parameter can be controlled via CV, for phaser-like sweeps and

special effects.

HF Emph

(High Frequency

Emphasis)

Boosts the high frequencies in the carrier signal. This is some-

times desired to get a clearer vocoded sound. The reason is that

a carrier signal should theoretically contain roughly equal ener-

gies in all frequency ranges for best results - in a typical synth

sound the high frequencies are often weaker than the low fre-

quencies. Raising the HF Emph control will rectify this.

Not available in Equalizer mode.

Dry/Wet Determines the balance between modulator sound (dry) and vo-

coded sound (wet). To get the pure vocoder sound, set this to

wet (turned fully right).

Not available in Equalizer mode.

Parameter

Description

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