envelopes¶

class Envelope(amplitudes=(0, 1, 0), durations=(1, 1), curves=('linear', 'linear'), release_node=None, loop_node=None, offset=None)¶

Bases: supriya.system.SupriyaValueObject

An envelope.

>>> envelope = supriya.synthdefs.Envelope()
>>> envelope
Envelope()

>>> envelope.serialize()
[0.0, 2.0, -99.0, -99.0, 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0]

classmethod adsr(attack_time=0.01, decay_time=0.3, sustain=0.5, release_time=1.0, peak=1.0, curve=- 4.0, bias=0.0)¶

property amplitudes¶

classmethod asr(attack_time=0.01, sustain=1.0, release_time=1.0, curve=- 4.0)¶

property curves¶

property duration¶

property durations¶

property envelope_segments¶

classmethod from_segments(initial_amplitude=0, segments=None, release_node=None, loop_node=None, offset=None)¶

property initial_amplitude¶

classmethod linen(attack_time=0.01, sustain_time=1.0, release_time=1.0, level=1.0, curve=1)¶

property loop_node¶

property offset¶

classmethod percussive(attack_time=0.01, release_time=1.0, amplitude=1.0, curve=- 4.0)¶

Make a percussion envelope.

>>> import supriya.synthdefs
>>> envelope = supriya.synthdefs.Envelope.percussive()
>>> envelope
Envelope(
    curves=(-4.0, -4.0),
    durations=(0.01, 1.0),
)

>>> envelope.serialize()
[0.0, 2.0, -99.0, -99.0, 1.0, 0.01, 5.0, -4.0, 0.0, 1.0, 5.0, -4.0]

property release_node¶

serialize(for_interpolation=False)¶

classmethod triangle(duration=1.0, amplitude=1.0)¶

Make a triangle envelope.

>>> import supriya.synthdefs
>>> envelope = supriya.synthdefs.Envelope.triangle()
>>> envelope
Envelope(
    durations=(0.5, 0.5),
)

>>> envelope.serialize()
[0.0, 2.0, -99.0, -99.0, 1.0, 0.5, 1.0, 0.0, 0.0, 0.5, 1.0, 0.0]