Propellerhead Reason - 4.0 Provozní příručka stáhnout pdf (Strana 357)

THE EFFECT DEVICES

355

Pattern Controlled Filter - An Example

This example shows how to use the ECF-42 and the Matrix to create pattern con-

trolled filter effects. Proceed as follows:

1. Start with an empty Song.

2. Create a Mixer.

3. Create a Subtractor Synthesizer.

An Init Patch will work fine for these examples.

4. Create an ECF-42.

5. Create a Matrix Pattern Sequencer.

If you flip the rack around, you can see that the audio out from the Subtractor is

passed through the ECF-42 and then on to the Mixer. The Matrix Curve CV is con-

nected to the ECF-42 Frequency CV parameter, and the Matrix Gate CV is con-

nected to the ECF-42 Env Gate input.

6. Select the Track connected to the Subtractor (given that you are handling

MIDI input via the sequencer) so that you can play it from your keyboard.

If you play a few notes and turn the ECF-42 filter freq knob, you should hear the

sound being filtered.

7. Draw a Gate pattern in the Matrix, using mixed velocity values.

Draw only a Gate pattern, not a Curve pattern.

8. Set both the Env.Amt and Vel knobs on the ECF-42 to about “40”.

9. Click the Run button on the Matrix panel.

10.While in Run mode, hold a chord down on your keyboard.

Now you should hear the envelope (controlling the filter) being triggered with every

gate step.

D By increasing the Env.Amount, you determine how much the envelope

parameters should affect the filter frequency.

D By increasing the Vel. parameter, you determine how much the gate ve-

locity should affect the filter frequency.

✪ If the filter effect isn’t very noticeable, try lowering the filter frequency,

and raising the Res value.

11.Set both the Env.Amt and Vel knobs on the ECF-42 to “0”.

12.With the Matrix still playing, draw a Curve pattern in the Matrix pattern win-

dow.

Now, you should hear the filter frequency being modulated by the curve pattern.

By combining the various parameters you can create many new filter effects.

D You can also control the ECF-42 from other devices with CV and/or Gate

outputs.

Triggering the ECF-42 via MIDI

To trigger the envelope in the ECF-42, proceed as follows:

1. Create a sequencer track for the ECF-42.

This is easiest done by bringing up the context menu for the device and selecting

“Create Sequencer Track for XX” (where “XX” is the name of this particular filter

device).

2. Record or draw some notes on the sequencer track.

Remember that the envelope takes the note length and velocity into account. The

note pitches doesn’t matter.

3. Play back the track.

The actual notes will not be heard (since the track is connected to the ECF-42,

which produces no sound in itself) but the envelope will be triggered according to

the notes.

D You can even control the envelope “live” via MIDI: just set MIDI input to

the sequencer track for the ECF-42 and play your MIDI instrument!

To route MIDI input to a track, click in the In column in the track list, so that the

MIDI connector symbol appears next to the track name.

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