Convert hundreds of audio files at once with broadcast-standard loudness normalization
Stop converting audio files one by one. Batches Brew is a professional audio batch converter that processes hundreds of files simultaneously, applying loudness normalization and automatic file renaming. Perfect for podcasters, music producers, broadcast engineers, and post-production studios.
Manual audio conversion is time-consuming and error-prone. When you need to deliver files to different platforms with specific loudness requirements, an audio batch converter saves hours of repetitive work. Batches Brew handles the entire workflow: format conversion, loudness normalization, sample rate changes, and automatic file renaming.
Upload WAV, MP3, AIFF, FLAC, or M4A files. Our audio batch converter processes them all and outputs to your chosen format.
Automatically normalize to EBU R128, ATSC A/85, -14 LUFS, -16 LUFS, or Full Scale. Every file meets your target standard.
Files are automatically renamed with the applied loudness standard. No more manual renaming or naming mistakes.
Batch convert stereo, 5.1 surround, and 7.1 surround audio. Professional multi-channel support included.
| Standard | Target | Use Case |
|---|---|---|
| EBU R128 | -23 LUFS | European broadcast, TV |
| ATSC A/85 | -24 LKFS | US broadcast, cable TV |
| Streaming | -14 LUFS | Spotify, Apple Music, YouTube |
| Podcasts | -16 LUFS | Apple Podcasts, Spotify Podcasts |
| Full Scale | -0.1 dBFS | Maximum loudness, mastering |
| Custom | -9 dBFS | Loud masters, club music |
Try Batches Brew free for 7 days. Convert unlimited audio files with professional loudness normalization.
Try Audio Batch Converter Free1. Upload your audio files - Drag and drop any number of audio files. We accept WAV, MP3, AIFF, FLAC, and M4A formats.
2. Select your output format - Choose WAV, MP3, or M4A with your preferred quality settings (bit depth, bitrate, sample rate).
3. Choose loudness standard - Pick from EBU R128, ATSC A/85, -14 LUFS, -16 LUFS, or Full Scale normalization.
4. Download converted files - Get all your files converted, normalized, and automatically renamed. Ready for delivery.
An audio batch converter is a tool that converts multiple audio files at once, rather than processing them one at a time. Batches Brew can convert hundreds of audio files simultaneously to WAV, MP3, or M4A formats while applying loudness normalization.
With Batches Brew, there's no practical limit to how many audio files you can batch convert. Upload as many files as you need and convert them all in one operation.
Batches Brew accepts WAV, MP3, AIFF, FLAC, and M4A as input formats. Output formats include WAV (16-bit, 24-bit, 32-bit), MP3 (128-320 kbps), and M4A/AAC (128-256 kbps).
Yes! Batches Brew automatically normalizes audio to professional broadcast standards including EBU R128 (-23 LUFS), ATSC A/85 (-24 LKFS), -14 LUFS for streaming, -16 LUFS for podcasts, and Full Scale for maximum loudness.
Batches Brew offers flexible pricing: pay-as-you-go at €0.99 per file, BB Pro subscription at €9.99/month for 50 source files, or BB Studio at €49/month for unlimited conversions. All subscription plans include a 7-day free trial.
No installation required. Batches Brew is a web-based audio batch converter that works directly in your browser. Simply upload your files and start converting.