Propellerhead Reason - 4.0 Manual de operaciones descargar pdf (Pagina 250)

NN-19 SAMPLER

248

NN-19 Synth Parameters

The NN-19 synth parameters are used to shape and modulate samples. These are

mostly similar to the parameters used to shape the oscillators in Subtractor - you have

envelope generators, a filter, velocity control etc. Again, it is important to remember

that these parameters do not alter the audio files in any way, only the way they will play

back.

! These parameters are global, in the sense that they will affect all sam-

ples in a sample patch.

The Oscillator Section

For a sample patch, the actual samples are what oscillators are for a synthesizer, the

main sound source. The following settings can be made in the Osc section of the NN-

19:

Sample Start

This changes the start position of samples in a sample patch. Turning the knob clock-

wise gradually offsets the samples’ start position, so that they will play back from a po-

sition further “into” the samples’ waveform. This is useful mainly for two things:

D Removing “air” or other unwanted artefacts from the start of less than

perfect samples.

Occasionally (although not in any samples supplied with Reason) you may come

across samples where the start point of the sample is slightly ahead of the start of

the actual sound. There may be noise or silence in the beginning which was not in-

tended to be part of the sample. By adjusting the sample start position, this can be

removed.

D Changing the start point as an effect.

For example, if you had a sample of someone saying “one, two, three”, you could

change the start position so that when you played the sample it would start on

“three”.

✪ You can also assign velocity sample start allowing to use your playing to

determine the exact sample start. See later in this chapter.

Setting Sample Pitch - Octave/Semitone/Fine

By adjusting the corresponding knobs you can change the pitch of all samples be-

longing to a patch, in three ways:

D Octave steps

The range is 0 - 8. The default setting is 4.

D Semitone steps

Allows you to raise the frequency in 12 semitone steps (1 octave).

D Fine steps (100th of a semitone)

The range is -50 to 50 (down or up half a semitone).

! Note that the controls in this section cannot be used to tune samples

against each other, as all samples will be affected equally. To tune indi-

vidual samples, you use the Tune parameter below the keyboard display

(see page 246).

Keyboard Tracking

The Osc section has a button named “Kbd. Track”. If this is switched off, the sample’s

pitch will remain constant, regardless of any incoming note pitch messages, although

the oscillator still reacts to note on/off messages. This could be useful if you are using

non-pitched samples, like drums for example. You could then play a sample in a zone

using several keys, allowing for faster note triggering if you wanted to play a drum roll,

for example.

Osc Envelope Amount

This parameter determines to what degree the overall pitch of the samples will be af-

fected by the Filter Envelope (see page 250). You can set negative or positive values

here, which determines whether an envelope parameter should raise or lower the

pitch.

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