Expand description
Waver: waveform generation library
A waveform can be the fundamental sinusoidal wave or a complex waveform of varying frequency, phase shift or amplitude. Waver is useful where there’s a need to generate a simple sinusoidal sound wave or for constructing a frequency or amplitude modulated carrier wave in bare-metal Arduino or a Raspberry Pi.
Features
- Arbitrary quantization levels. Specify the bit depth when constructing
Waveform. - Online wave generation. No buffers, infinite iterators.
- Wave superposition with weighted amplitudes.
- Modulate signal’s frequency, amplitude or phase.
- Numerically stable, prevents clipping.
Example
use std::{vec::Vec, f32::consts::PI};
use waver::{Waveform, Wave, WaveFunc};
// 44.1Khz sampling rate and 16-bit depth.
let mut wf = waver::Waveform::<i16>::new(44100.0);
// Superpose a sine wave, a cosine wave and a triangle function.
wf.superpose(Wave { frequency: 2600.0, ..Default::default() })
.superpose(Wave { frequency: 2600.0, phase: PI / 2.0, ..Default::default() })
.superpose(Wave { frequency: 2600.0, func: WaveFunc::Triangle, ..Default::default() })
.normalize_amplitudes();
// Quantization of 100 samples
let _output: Vec<i16> = wf.iter().take(100).collect();Structs
A structure that represent a sinusoidal wave.
Iterator for Wave structure.
A structure that represent a waveform.
Iterator for Waveform structure.
Enums
An enum that represents the kind of the wave function.