Audio Files: A Practical Guide

MP3, AAC, Opus, WAV, FLAC — what to pick and why.

Published 2025-09-05 • Reading time ~8–12 min

Choosing an Audio Format

Use this:
  • Share anywhere: MP3 (128–192 kbps)
  • Video/streaming: AAC (M4A)
  • Speech + small size: Opus
  • Edit/archive: WAV / FLAC
Notes:
  • Lossy (MP3/AAC/Opus) is not for repeated re-editing.
  • WAV/AIFF are big but perfect for DAW workflows.

Using the Audio Converter

  1. Load audio. Choose output (MP3/WAV/M4A).
  2. Set bitrate (e.g., MP3 192 kbps), sample rate, channels.
  3. Optional: trim start/duration, change volume.
  4. Convert and download. A progress bar shows long jobs.