Arudio

Arudio is a browser-first audio mixer and editor built with Svelte and Vite. It aims to feel like a compact DAW-style tool: import audio, arrange clips on a timeline, shape the sound with effects, add automation/keyframes, mark beats, loop sections, and export the result from the browser.

This project is still moving fast. The UI and workflow are the priority, while deeper audio-engine behavior is being improved step by step.

Why Arudio

• Browser-based editing without a native audio backend.
• Dense editor UI made for repeated audio work, not a marketing landing page.
• Real imported audio playback and export path using Web Audio and OfflineAudioContext.
• Compact controls for effects, timeline, keyframes, project settings, and export settings.
• Designed for creators who want a lightweight editor that can grow toward serious production workflows.

Get Started

Requirements:

• Node.js 20 or newer
• npm
• A modern Chromium-based browser is recommended for development testing

Install and run:

npm install
npm run dev

Open:

http://localhost:3000/

Install on Windows:

.\InstallArudio.ps1

or double-click:

InstallArudio.bat

Install and launch after setup:

.\InstallArudio.ps1 -StartAfterInstall

Build for production:

npm run build

Run local validation:

npm run lint
npm run test:audio-readiness

Windows quick launch:

.\StartArudio.ps1

or double-click:

StartArudio.bat

Main Benefits

• Fast local workflow for audio experiments.
• No server upload required for normal local project work.
• Project metadata is stored locally in the browser.
• Audio source blobs are stored locally through IndexedDB.
• Export settings are visible before rendering.
• Clear known-problem tracking so rough edges are not hidden.

Use Cases

• Quick edits for short-form audio.
• DJ-style beat marking and loop preview.
• Trying effect chains before committing to a larger DAW session.
• Browser audio-engine experiments.
• UI/UX research for compact creative tools.
• Learning how Web Audio, timeline state, export rendering, and Svelte UI can work together.

Feature Overview

Available feature families include:

• Multi-file audio import
• Clip timeline editing
• Split-to-new-layer workflow
• Clip gain, pan, pitch, speed, fades, reverse
• Timeline zoom, pan, ruler seek, and viewport slider
• Beat markers and timeline markers
• Loop playback for project or selected clip
• Playback cache status labels
• Effect rack and effects inspector
• Graphic EQ, Filter, Compressor, Gate, Limiter, Saturation, Overdrive, Bitcrusher, Chorus, Flanger, Phaser, Tremolo/Auto-Pan, Vibrato, Ring Modulator, Cave Reverb, Delay/Echo
• Compound diamond keyframes for supported clip and effect parameters
• Export settings popup
• WAV export
• MP3 export through a browser encoder
• App settings, release notes, fatal error popup, and right-click quick action menu

Read the detailed feature list in Docs/FeatureList.md.

Known Problems

Arudio is not at a stable 1.0 release yet. Known problem areas include:

• Some keyframe and effect automation workflows can still feel confusing.
• Pitch/speed independence is not yet a full professional phase-vocoder implementation.
• Large projects need more performance profiling.
• Plugin support is planned but not implemented.
• Advanced restoration tools such as spectral repair, de-clip, and noise profile reduction are not implemented.

Read the current public problem list in Docs/KnownProblems.md.

Pros

• Runs in the browser.
• Real audio import/export path exists.
• UI is compact and editor-focused.
• Many effect devices are already wired into preview/export.
• MP3 and WAV export settings are visible before rendering.
• Good foundation for automation, plugins, and API support.

Cons

• Not a replacement for mature DAWs yet.
• Some advanced DSP features are planned rather than finished.
• Browser audio behavior can vary by device and browser.
• Local browser storage can be cleared by the user or browser settings.
• Complex automation workflows still need more UX polish.

Project Structure

src/        Svelte app, audio engine, export encoders, stores, and UI components
Tests/      Playwright browser validation
Docs/       Public feature and known-problem documentation
assets/     Static project assets

Contributing

Issues and improvement ideas are welcome. Please open an issue with:

• What you expected
• What happened
• Steps to reproduce
• Browser and OS
• Audio format used, if relevant
• Screenshot or screen recording when possible

See CONTRIBUTING.md.

License

Arudio is licensed under Arinara Network License 1. You may use, copy, modify, distribute, and use it commercially, provided that every distribution and commercial use gives visible credit to Arinara Network and retains the license notice.

See LICENSE.

Credits

• Created by Arinara Network.
• Collaboration With Gpt 5.5.
• Built with Svelte, Vite, Web Audio API, Playwright, Lucide icons, and a browser MP3 encoder.

Made with love.