# 
[](https://www.npmjs.com/package/@thi.ng/dsp-io-wav)
[](https://mastodon.thi.ng/@toxi)
> [!NOTE]
> This is one of 215 standalone projects. LLM-free, human-made and
> cared for software, maintained as part of the
> [@thi.ng/umbrella](https://codeberg.org/thi.ng/umbrella/) ecosystem and
> anti-framework.
>
> 🚀 Please help me to work full-time on these projects by [sponsoring
> me](https://codeberg.org/thi.ng/umbrella/src/branch/develop/CONTRIBUTING.md#donations).
> Thank you! ❤️
- [About](#about)
- [Status](#status)
- [Installation](#installation)
- [Dependencies](#dependencies)
- [Usage examples](#usage-examples)
- [API](#api)
- [Authors](#authors)
- [License](#license)
## About
WAV file format generation. This is a support package for [@thi.ng/dsp](https://codeberg.org/thi.ng/umbrella/src/branch/develop/packages/dsp).
## Status
**STABLE** - used in production
[Search or submit any issues for this package](https://codeberg.org/thi.ng/umbrella/issues?q=%5Bdsp-io-wav%5D)
## Installation
```bash
yarn add @thi.ng/dsp-io-wav
```
ESM import:
```ts
import * as wav from "@thi.ng/dsp-io-wav";
```
Browser ESM import:
```html
```
[JSDelivr documentation](https://www.jsdelivr.com/)
For Node.js REPL:
```js
const wav = await import("@thi.ng/dsp-io-wav");
```
Package sizes (brotli'd, pre-treeshake): ESM: 488 bytes
## Dependencies
- [@thi.ng/api](https://codeberg.org/thi.ng/umbrella/src/branch/develop/packages/api)
- [@thi.ng/binary](https://codeberg.org/thi.ng/umbrella/src/branch/develop/packages/binary)
- [@thi.ng/errors](https://codeberg.org/thi.ng/umbrella/src/branch/develop/packages/errors)
- [@thi.ng/transducers](https://codeberg.org/thi.ng/umbrella/src/branch/develop/packages/transducers)
- [@thi.ng/transducers-binary](https://codeberg.org/thi.ng/umbrella/src/branch/develop/packages/transducers-binary)
Note: @thi.ng/api is in _most_ cases a type-only import (not used at runtime)
## Usage examples
One project in this repo's
[/examples](https://codeberg.org/thi.ng/umbrella/src/branch/develop/examples)
directory is using this package:
| Screenshot | Description | Live demo | Source |
|:--------------------------------------------------------------------------------------------------------------------|:------------------------------------------------------------|:---------------------------------------------------|:----------------------------------------------------------------------------------------|
| 
| Generative audio synth offline renderer and WAV file export | [Demo](https://demo.thi.ng/umbrella/render-audio/) | [Source](https://codeberg.org/thi.ng/umbrella/src/branch/develop/examples/render-audio) |
## API
[Generated API docs](https://docs.thi.ng/umbrella/dsp-io-wav/)
TODO
```ts
import { osc, sin } from "@thi.ng/dsp";
import { wavByteArray } from "@thi.ng/dsp-io-wav";
const FS = 48000;
// write 1 second 24bit mono WAV file of 440Hz sine
fs.writeFileSync(
"sine-440.wav",
wavByteArray(
{ sampleRate: FS, channels: 1, length: FS, bits: 24 },
osc(sin, 440 / FS)
)
);
```
## Authors
- [Karsten Schmidt](https://thi.ng)
If this project contributes to an academic publication, please cite it as:
```bibtex
@misc{thing-dsp-io-wav,
title = "@thi.ng/dsp-io-wav",
author = "Karsten Schmidt",
note = "https://thi.ng/dsp-io-wav",
year = 2020
}
```
## License
© 2020 - 2026 Karsten Schmidt // Apache License 2.0