Envelopes
Create Melody from Envelope
- Input : an envelope
- Factors : a range – lowest and highest pitch – and a duration
Y and x -points of each point of the envelope are converted into midicents and offsets.
Create Envelope from Melody
- Input : a sequence
Midicents and offsets of each note are converted into y and x -points. If the sequence includes chords , the operator only considers the highest pitch.
Resample Envelope
- Input : an envelope
- Factors : a range , a duration and an n number of samples
The operator samples the envelope periodically and returns a melodic profile. The coordinates of the points in the curve are ignored. N number of y -points are converted into midicents at a regular time interval. All notes have the same duration.
Some of the y -points of the curve might not be converted into notes if they do not coincide with the sampling frequency.
Resample Melody
- Input and output : a sequence
- Factor : an n number of samples
The operator samples the melodic contour periodically, that is, at a regular time interval and returns a melodic profile. N number of notes of equal duration are returned.
Some of the notes of the sequence might be excluded from the output object if they do not coincide with the sampling frequency.
Smooth Envelope
- Input : a sequence , an envelope
- Factors – with an envelope : range , duration , number of samples, spline degree between 2 and 5
- Factors – with a sequence : number of samples, spline degree
The operator "smoothes" the envelope or the melodic contour and samples it periodically, that is, at a regular time interval and returns a melodic profile. N number of notes of equal duration are returned.
The melodic contour can thus resemble a glissando.
