Crate rawdio

rawdio is an audio engine that is inspired by the Web Audio API

You can use it to:

• Create a context
• Create DSP nodes
• Connect the nodes together
• Accurately schedule ‘events’
• Process the graph with an input and an output

Example

use rawdio::{connect_nodes, create_engine, AudioProcess, Context, Oscillator, OwnedAudioBuffer};

let (mut context, mut process) = create_engine();

let frequency = 1_000.0;
let channel_count = 2;
let oscillator = Oscillator::sine(context.as_ref(), frequency, channel_count);

connect_nodes!(oscillator => "output");

context.start();

// Call `process.process(...)`, passing in the input samples, and using the output
// If you wish to use with your sound card, you could use something like cpal (see the examples)

Modules

prelude

Module to re-export commonly used types

Macros

connect_nodes

Connect a graph

Structs

Adsr

An ADSR node that will create an envelope to modulate the amplitude of its input

AudioParameter

An parameter that generates a value for every audio sample

Biquad

A biquad filter

BorrowedAudioBuffer

An AudioBuffer that borrows audio from a different audio buffer

Compressor

A basic dynamics compressor

Convolution

A convolution node to convolve the input signal with an impulse response

EngineOptions

Options to control the engine

Envelope

A node that tracks the input signal and outputs the envelope

Gain

A node that applies gain to the input

GraphNode

A node the connects into the audio graph

Level

A level that can be used to convert from linear to decibel representation

Mixer

A node that mixes between its input and output channels

MutableBorrowedAudioBuffer

A mutable buffer that refers to a portion of another buffer

Oscillator

An oscillator node

OwnedAudioBuffer

An audio buffer that owns its audio data

Pan

A node that will pan the input signal between two output channels

ProcessContext

The context that is passed to every [DspProcessor]

Recorder

A node that records its input

SampleLocation

Specify the location in an audio buffer using the frame and channel index

Sampler

A node that can play or loop a sample

Timestamp

A fixed-point representation of a timestamp

Waveshaper

A node that will distort the input signal using a specified function

Enums

BiquadFilterType

The type of the biquad filter

Traits

AudioBuffer

An AudioBuffer represents floating point audio data for a number of channels

AudioProcess

An audio process that can be processed with input and output audio samples

Context

The root audio context

Functions

create_engine

Create an engine with the default options

create_engine_with_options

Create an audio engine with custom options