Intune
A chromatic musical instrument tuner
Motivation for building
The motivation for creating Intune comes from my love for learning music as a hobby. Since I often need to tune my instruments, I found existing free tuning apps too cluttered with ads. I wanted to build something simple and ad-free for myself and other musicians like me. Intune aims to be a straightforward solution for hassle-free instrument tuning.
I anticipated needing to perform complex calculations quickly, which led me to choose Rust for its high-speed capabilities. With the technical aspects secured, the next challenge was accessibility. I opted for React Native to develop both Android and iOS applications powered with React Native Animations, transforming this endeavor from learning an instrument into crafting a completely new user experience.
Screens
Features
Intune provides a chromatic musical tuner which can be used to tune any musical instrument, even drums!
Tech Stack
- React Native
- React Native Animations
- Rust
- FFT
- Oboe
- Android
- Kotlin
App architecture
High Level
Rust layer
Frontend in React Native
React Native serves as the frontend framework, managing the user interface and application logic.
Rust for Audio Processing
Rust is integrated as a library for efficient audio processing on Android, utilizing Oboe for real-time audio management and FFT for converting time domain data to frequency domain.
Communication via Native Modules
Native modules act as a bridge between React Native's JavaScript and the Rust library, facilitating seamless communication and function invocation.
Event Loop and Data Flow
Kotlin's event loop on Android polls data processed by Rust, such as frequency calculations from FFT, and sends it to React Native's JavaScript engine via an event emitter stream.
Benefits of the Approach
This architecture combines the performance benefits of Rust with the cross-platform capabilities of React Native, ensuring efficient audio processing and a unified development environment for Android applications.