Propellerhead Reason - 4.0 Provozní příručka stáhnout pdf (Strana 330)

BV512 VOCODER

328

Controlling the Hold function

As described see page 324, pressing the Hold button on the front panel “freezes” the

current filter spectrum until you deactivate it again. This can be used for creating sam-

ple & hold-like effects, stuttering or garbled vocoder sounds:

• Connect e.g. the Gate output on a Matrix device to the Hold input on the back of

the BV512. By playing back a gate pattern on the Matrix, the Hold function will re-

peatedly be turned on and off according to the programmed rhythm in the pattern.

Hold will be active for the length of each gate signal.

• Automate the Hold function with the main sequencer, either by recording it or by

drawing in its controller lane.

• If you route MIDI to the BV512 you can control the Hold function in two ways by

default: By pressing a damper pedal connected to your MIDI controller or by play-

ing the note C4. In both cases, the Hold function will be momentary - Hold is on

until you release the pedal or key.

Using the individual band level connections

As described on page 325, the individual band level connectors on the back are CV

output and input jacks. The upper row sends out the CV signals from the envelope fol-

lowers for the different frequency bands, while the lower jacks are CV inputs for con-

trolling the individual bandpass filters (breaking the internal connection from the

envelope followers). There are several interesting things you can do with these con-

nections:

Crosspatching frequency bands

By connecting outputs to inputs in alternative configurations, you can drastically

change the result of the vocoding. For example, you could have low frequencies in the

modulator signal give high frequencies in the vocoded sound and vice versa. Note:

• In 4 band and 8 band mode, only the 4/8 first output/input pairs are used.

• In 32 band mode and FFT (512) mode, each connection corresponds to two or

several frequency bands.

This means that connecting an output to the input with the same number is not the

same as using the internal signal path (no CV cable connected). You can hear this

quite clearly in FFT (512) mode: connect all outputs to the corresponding inputs

and gradually remove the CV cables while listening to the vocoder sound - the

sound will progressively get more detailed.

Extracting CV from the vocoder

You can connect an individual band level output to any CV input on any device. This

means you can use the vocoder as an envelope follower, having elements in the mod-

ulator sound control a parameter in another device, e.g. an effect. Note:

• The Attack and Decay settings on the BV512 panel affect the envelope followers,

and thus the rise and fall times of the CV signals from the individual band level out-

puts.

• If you are using the vocoder in a mode with many bands, but want a broader fre-

quency range to generate the CV signal, you can merge several band outputs into

one CV signal - use a Spider CV Merger & Splitter device.

Controlling vocoder bands from an external source

Connecting a CV source to an individual band input breaks the internal connection

from the corresponding envelope follower. This way you can “manually” control the

vocoder filters. Some applications:

D Connect the CV outputs for one or more envelopes in the carrier device

to individual band inputs.

When you play the carrier instrument, one or more of the bandpass filters in the vo-

coder will automatically open, adding an extra attack to the sound. Useful if you re-

ally want to “play” the carrier, rather than just hold a chord.

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