2. Implement the `Source` trait to define how audio samples are generated or modified
3. Consider implementing sources like oscillators, noise generators, or effects like amplification, filtering, or distortion
4. If your contribution creates sound you should give it a public (factory) function that constructs it. If its an effect then add a method with default implementation for it in the `Source` trait.
5. Begin with a test for your new feature (see the [Testing](#testing)). This approach ensures your PR is ready and simplifies development. Don't worry about optimizing initially; focus on functionality.
6. Once your feature works, celebrate your progress! 🎉 Open a draft PR at this stage - we're here to assist with refactoring and optimization.
7. Refactor your code, add benchmarks, and work on improving performance, especially for real-time processing in effects. Refer to the [Rust Performance Book](https://nnethercote.github.io/perf-book/introduction.html) for optimization techniques.
8. Finally add some documentation and an example. For details see [Documentation]($documentation)
9. If you're unsure about creating tests, implement your feature first, then open a PR with what you have asking for guidance. We're happy to help!
- The `tests/wav_test.rs` test simply checks if the decoder produces nonzero samples.
- The test `seek_does_not_break_channel_order` in `tests/seek.rs` uses a beeping sound that alternates between two channels. It seeks to a point where we know only the second channel should make sound. Then we check if the first channel is silent while the second is not.
- We love integration tests but they can be hard to write. If you have trouble adding one its fine to leave it out. If you do add one create a new file for it in `tests/`.
- Run tests: `cargo test`
- Run examples: `cargo run --example <example_name>`
- Look at the [documenting components](https://doc.rust-lang.org/rustdoc/how-to-write-documentation.html#documenting-components) section of the rustdoc book.
