# PureWavs

> PureWavs is a free, browser-based online audio mastering application. Perfect for mastering AI-generated music from Suno, Udio, Stable Audio, and other AI music platforms. No installation, no account required. Upload your audio file and get professional-quality mastering in seconds.

## What is PureWavs?

PureWavs is an AI-enhanced audio mastering tool that runs entirely in your web browser. It uses WebAssembly (WASM) for high-performance DSP (Digital Signal Processing) to deliver professional-grade mastering results instantly. Created by MASUNO, an independent developer and music producer based in Japan.

- URL: https://purewavs.vercel.app
- Category: Audio Production, Music Technology, Online Mastering
- Price: Free (no account required)
- Languages: Japanese, English

## Key Features

- **Instant AI Mastering**: Upload any audio file and receive professional mastering within seconds
- **5 Mastering Presets**: Standard, Dance, Rock, Lo-Fi, and Custom — each optimized for different genres
- **Real-time A/B Comparison**: Switch between original and mastered audio instantly
- **Professional Metrics**: LUFS (EBU R128), True Peak (dBTP), PLR (Peak-to-Loudness Ratio) analysis
- **Hi-Res Export**: 24-bit WAV (48kHz) and MP3 (320kbps) download
- **Manual EQ Control**: 3-band EQ with real-time visual feedback
- **Stereo Width Control**: Adjust stereo image from mono to wide
- **No Upload to Server**: All processing happens locally in the browser — your audio never leaves your device

## Technology

- **DSP Engine**: WebAssembly (AssemblyScript) with 9-stage processing chain
- **Standards Compliance**: ITU-R BS.1770-4 loudness measurement
- **Audio Quality**: Internal 32-bit float processing, 24-bit HD WAV output
- **True Peak Protection**: 4x oversampled inter-sample peak detection
- **Target Loudness**: -10 LUFS (commercial streaming standard)

## Who is it for?

- Musicians and producers who need quick, professional mastering
- **AI music creators using Suno, Udio, Stable Audio, or similar AI music generation tools**
- Independent artists releasing music on streaming platforms (Spotify, Apple Music, etc.)
- Podcasters and content creators who need audio optimization
- Anyone who wants to compare different mastering styles for their tracks

## FAQ

### Is PureWavs really free?
Yes, PureWavs is completely free with no account registration required. All features are available to everyone.

### Does my audio get uploaded to a server?
No. All audio processing happens locally in your browser using WebAssembly. Your audio files never leave your device, ensuring complete privacy.

### What audio formats are supported?
PureWavs accepts all common audio formats including WAV, MP3, FLAC, AAC, and OGG. Export is available in 24-bit WAV and 320kbps MP3.

### How does PureWavs compare to paid mastering services?
PureWavs uses professionally-calibrated DSP algorithms based on industry standards. While it may not replace a human mastering engineer for complex projects, it delivers excellent results for the majority of music production needs — especially for streaming distribution.

### What is the target loudness?
PureWavs targets -10 LUFS for the final master, which is optimized for modern streaming platforms. The True Peak limiter ensures compliance with broadcast standards.

### Can I use PureWavs to master AI-generated music from Suno or Udio?
Absolutely. PureWavs is ideal for mastering tracks created with AI music generation services like Suno, Udio, and Stable Audio. The AI-enhanced presets are designed to optimize the tonal balance and loudness of any audio source, including AI-generated compositions.

## Links

- Website: https://purewavs.vercel.app
- Full documentation: https://purewavs.vercel.app/llms-full.txt