10 releases (4 breaking)

0.5.0 May 22, 2023
0.4.0 Mar 22, 2023
0.3.0 Oct 22, 2022
0.1.0-alpha.6 May 25, 2022
0.1.0-alpha.3 Mar 25, 2022

#1033 in Audio


Used in audio-processor-metronome

MIT license

125KB
583 lines

augmented-adsr-envelope

crates.io docs.rs


Implementation of an ADSR envelope.

Basic usage

use std::time::Duration;

use augmented_adsr_envelope::Envelope;

// Create an exponential envelope.
// The envelope configuration uses atomics, so it doesn't need
// to be an immutable reference.
let envelope = Envelope::exp();

// Set settings
envelope.set_sample_rate(1000.0);
envelope.set_attack(Duration::from_millis(200));

// Trigger the envelope
envelope.note_on();
for i in 0..10000 {
  // Tick the envelope by 1 sample
  envelope.tick();
  // Get the current volume
  let _volume = envelope.volume();
}
// Trigger the release stage
envelope.note_off();

Plots

Envelope::default();

| Attack | 0.3 | | Decay | 0.3 | | Sustain | 0.8 | | Release | 0.3 |

Envelope::exp();

| Attack | 0.3 | | Decay | 0.3 | | Sustain | 0.8 | | Release | 0.3 |

License: MIT

Dependencies

~0.5–1.2MB
~26K SLoC