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https://github.com/gyng/synthrs
Toy audio synthesizer library in Rust with basic MIDI support.
https://github.com/gyng/synthrs
midi rust synthesizer wav
Last synced: about 2 months ago
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Toy audio synthesizer library in Rust with basic MIDI support.
- Host: GitHub
- URL: https://github.com/gyng/synthrs
- Owner: gyng
- License: mit
- Created: 2014-12-11T18:19:51.000Z (almost 10 years ago)
- Default Branch: master
- Last Pushed: 2021-06-26T08:14:51.000Z (about 3 years ago)
- Last Synced: 2024-07-18T05:40:46.602Z (2 months ago)
- Topics: midi, rust, synthesizer, wav
- Language: Rust
- Homepage: https://gyng.github.io/synthrs/
- Size: 7.57 MB
- Stars: 84
- Watchers: 3
- Forks: 9
- Open Issues: 5
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# synthrs
[Documentation](https://gyng.github.io/synthrs)
Toy synthesiser library in Rust.
For programmatic playback, please check out the [cpal integration](https://github.com/gyng/midcat).
## Features
* Not too difficult syntax for writing your own tones (see examples)
* Basic filters (low-pass, high-pass, band-pass, band-reject, all-pass, comb, delay line, attack/decay envelope)
* Basic waveforms (sine, square, triangle, sawtooth, tangent, bastardised Karplus-Strong, and more)
* MIDI synthesis
* Basic sample synthesis (WAV)
* PCM or WAV output
#### Integrations
* [usage with cpal](https://github.com/gyng/midcat)
* [midi-to-wav](https://github.com/gyng/midi-to-wav)
* [wasm, web synthesis](https://gyng.github.io/synthrs-wasm-ts/#/)
#### Examples (loud)
*You have to right-click > download the bigger ones to your computer because GitHub does not like to stream audio*
* [busy signal](examples/assets/busysignal.ogg)
* [bell](examples/assets/bell.ogg)
* [mtnking-pure](examples/assets/mountainking-puresquare.ogg) *pure square wave*
* [mtnking-envelope](examples/assets/mountainking.ogg) *butchered Karplus-Strong square wave with attack and decay*
* [gymnopedie](examples/assets/gymnopedie_sampler.ogg) *piano sample*
* [rustle](examples/assets/rustle.ogg)
* [clarinet sample](examples/assets/octave_clarinet_sampler.ogg)
## Try
To run examples (list below)
cargo run --example EXAMPLE_NAME
To use as a library, add this to `Cargo.toml`
[dependencies.synthrs]
git = "https://github.com/gyng/synthrs"
rev = "the commit you want"
To write a custom tone to a WAV file
```rust
extern crate synthrs;
use synthrs::synthesizer::{ make_samples, quantize_samples };
use synthrs::wave::sine_wave;
use synthrs::writer::write_wav_file;
fn main() {
// Using a predefined generator
write_wav_file("out/sine.wav", 44_100,
&quantize_samples::(
&make_samples(1.0, 44_100, sine_wave(440.0))
)
).expect("failed to write to file");
// `make_samples` takes in the duration, sample rate, and a generator closure.
// It returns an iterator which `quantize_samples` wraps around (setting the bit depth).
write_wav_file("out/sine_closure.wav", 44_100,
&quantize_samples::(
&make_samples(1.0, 44_100, |t| (t * 440.0 * 2.0 * 3.14159).sin())
)
).expect("failed to write to file");
}
```
More examples are in [`examples/`](examples/).
### Examples
Check out [`Cargo.toml`](Cargo.toml) for the full example list.
* [`simple`](examples/simple.rs) generates simple tones in `out/`
* [`telecoms`](examples/telecoms.rs) generates phone tones in `out/`
* [`filters`](examples/filters.rs) generates examples of audio filtering in `out/`
* [`midi`](examples/midi.rs) synthesises a few MIDI files in `out/`
This generates WAV or PCM files which can be opened in Audacity. Example MIDI files are public domain as far as I can tell.
#### cpal
[Example usage with cpal](https://github.com/gyng/midcat)
#### midi-to-wav
[midi-to-wav, a simple cli to convert MIDI files to WAV](https://github.com/gyng/midi-to-wav)
#### wasm
* [synthrs-wasm-ts](https://github.com/gyng/synthrs-wasm-ts)
* [demo](https://gyng.github.io/synthrs-wasm-ts)
### Audacity PCM import settings
`File > Import > Raw Data...`
* Signed 16-bit PCM
* Little-endian
* 1 Channel (Mono)
* Sample rate: 44_100Hz (or whatever your samples generated have)
## License
synthrs is licensed under the MIT License. See [`LICENSE`](LICENSE) for details.