Quality - Waldorf MicroWave XT Bedienungsanleitung

Quality

The quality parameters control the input stage of the Mixer. They determine the amount of
Aliasing and Time Quantization applied to the sound as well as the type of distortion
generated when the signal raises the clipping level.
Quality
Aliasing
Aliasing is a digital artefact that is audible as soon as a wave has harmonics higher than
half the sampling frequency. Usually, aliasing is reduced to a minimum by some magical
mathematics, but here you can override this and listen to aliasing distortion just like in the
dawn of the first digital musical instruments like the PPG Wave or the first MicroWave. Use
a setting other than off for sounds that expressionally should have a "digital" character.
TimeQuant
With a wave, 64 harmonics including the fundamental frequency can be represented, and a
clever interpolation algorithm makes sure only these 64 harmonics are generated, even at
low pitches. However, sometimes one might wish to add additional harshness at the lower
end, just like the first MicroWave did, and this is what Time Quantization is for: The wave
interpolation is overridden in five steps to get this extra fizziness. Note that pitch accuracy
is a bit diminished when using a value other than "off". The audible result of Time
Quantization is a very sharp sound character when playing at low pitches. Use this e.g. for
sawtooth based sounds.
Accuracy
If disabled, voices are detuned very slightly to give more vivid sound, especially when
playing chords or sounds with long release. If enabled, the tuning is done as accurate as
possible.
Clipping
Selects the type of distortion that is applied when the signal raises the clipping level.
Clipping is always generated when the sum of all mixer input volumes (i.e. Wave 1, Wave 2
Noise and Ringmodulation) exceeds 128.
• If saturate is selected for this parameter, the signal will be limited to the maximum
level. This is the kind of distortion classic analog circuits will generate.
• If overflow is selected, distortion is proceeded in the same way as a numerical
overflow in a digital system: The polarity of the signal's part above the maximum
level will be negated.
Level
max
min
User's Manual MicroWave II • MicroWave XT • XTk
Aliasing |TimeQuant|Accuracy |Clipping
3
off / 1...5
off / 1...5
off / on
saturate / overflow
Time
saturate
| off | off
Level
max
min
overflow
|saturate
Time
47