Opus vs AAC vs MP3: Which One Fits Your Show?

October 6, 2025

Pick by goal: reach, size, or voice quality.

Fast take

MP3: maximum compatibility — works everywhere.
AAC (M4A): better quality for the same size — great for mobile.
Opus: amazing for speech at low bitrates — check player support first.

Practical picks

Publishing to all platforms: MP3 128–192 kbps.
Mobile‑first and smaller files: M4A (AAC) 128–192 kbps.
Web/app playback with focus on speech: Opus 96–128 kbps.

Tip: keep the sample rate at 48 kHz if your source video is 48 kHz — fewer surprises.

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MP3, M4A (AAC), Opus and more — private and fast.

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