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What's new in Audio Compressor 8.0.5: • Batch mode: compress up to 10 files at once, with mixed formats • Keep original format for WAV, FLAC and AIFF • New options: sample rate, Mono/Stereo, normalize volume, fade in/out • Preview WMA and every supported format • Save all results at once to any folder • Swipe to delete results, with Undo • Clear before/after size for every file • New gold design with light and dark themes • Faster, more stable compression and fixes
Reduce audio file size: compress MP3, WAV, FLAC, M4A & more, offline & private
Audio Compressor reduces audio file size right on your phone. Compress MP3, WAV, FLAC, M4A, AAC, OGG, Opus, WMA and more to free up storage and share audio faster, with sound quality you control. Everything runs on your device. Your files are never uploaded to a server, the app works offline, and it needs no storage permission. You pick each file yourself. 🎵 SUPPORTED FORMATS Compressed in their own format: MP3, M4A, AAC, OGG, OGA, Opus, WMA, AC3, MP2, AMR Lossless formats: WAV, FLAC, AIFF, AIF These become space-saving M4A by default for the biggest saving. Turn on "Keep original format" to keep WAV as WAV, FLAC as FLAC and AIFF as AIFF at 16-bit CD quality. ⚡ KEY FEATURES • Single file or batch: compress one file, or up to 10 files at once • Mix formats freely: MP3, WAV, FLAC, WMA and more in the same batch • Two compression modes: – Quality scale from 1 to 10 – Bit rate up to 512 kbps, by slider or by typing the exact value • Never a bigger file: if a file cannot get smaller, it is skipped and you are told why • Live progress for every file, and you can stop at any time 🎚️ MORE OPTIONS • Sample rate: Original or 8,000 to 48,000 Hz • Channels: Original, Mono (1 channel) or Stereo (2 channels). Mono is about half the size and great for speech • Normalize volume: evens out loudness so quiet and loud files play alike • Fade in and fade out: up to 30 seconds each, by slider or typed value • Remove any file from a batch before compressing 📊 CLEAR RESULTS • Before and after size for the whole batch, plus the space saved • Before, after and percent smaller for every file • Play a preview of any file before and after compressing • Swipe left to delete a result, with Undo • Download a single file, or save all files at once into a folder you choose 📱 HOW TO USE 1. Choose Single file or Multiple files 2. Tap the upload button and pick your audio 3. Set Quality or Bit rate, and any extra options 4. Tap Start Compressing 5. Preview the results and save them to your phone 🎧 GREAT FOR • Freeing up phone storage taken by music and recordings • Sending voice notes, podcasts and songs over WhatsApp, Telegram or email • Shrinking large WAV and FLAC recordings • Making lectures, interviews and audiobooks smaller with Mono 💡 A NOTE ON QUALITY Smaller files come from a lower bit rate. At higher settings the difference is hard to hear; at lower settings you save more space. You always choose the balance. Files that are already highly compressed may shrink only a little, and the app shows the real result before you save. 🆓 FREE TO USE Audio Compressor is free and supported by ads. Single-file compression is always free. Batch compression and exports at 320 kbps or higher are unlocked by watching a short ad. 🌗 Light and dark themes, a clean gold design, and a simple layout make it easy for everyone. 👨💻 DEVELOPER'S NOTE Hi, I'm Prasish Sharma, an independent developer from Pokhara, Nepal. I built Audio Compressor to be a fast, private and reliable way to manage audio files. Your feedback helps me improve it. 📩 FEEDBACK If the app helps you, please leave a rating or review. For any issue or suggestion, email prasishsharma4@gmail.com. I read every message. Download Audio Compressor and reduce your audio file size in seconds.