What is the best audio format for podcasts?

MP3 is the most compatible format, while AAC offers slightly better compression. WAV is best for editing but not for distribution.

What bitrate should I use for a podcast?

For speech-focused podcasts, 96 kbps mono offers excellent clarity with manageable file sizes. If you include music, 128 kbps stereo is recommended.

Should podcasts be in mono or stereo?

Mono is ideal for speech as it reduces file size without affecting clarity. Stereo is useful only if you have music or effects that benefit from stereo separation.

Convert Audio for Podcasts: Best Settings for Quality and Size

The best podcast settings depend on your show format. A solo voice show does not need the same bitrate as a music-heavy production. This guide gives practical presets you can apply in minutes.

Quick preset table

Podcast type	Format	Bitrate	Channels
Voice only (interviews, talk)	MP3 or AAC	96 kbps	Mono
Voice + intro/outro music	MP3	128 kbps	Stereo
Music-focused or sound design	AAC or MP3	160-192 kbps	Stereo

1) Format choice: MP3 vs AAC vs WAV

MP3: safest distribution format for maximum compatibility.
AAC: often smaller files at similar perceived quality on modern apps.
WAV: keep only as edit master, not for final distribution.

2) Bitrate and file size (practical numbers)

Approximate size per hour:

96 kbps -> ~43 MB/hour
128 kbps -> ~57 MB/hour
192 kbps -> ~86 MB/hour

If your audience listens on mobile data, 96-128 kbps is usually the best trade-off.

3) Sample rate and mono/stereo

Sample rate: 44.1 kHz is enough for almost all podcasts.
Mono: ideal for spoken-word episodes and smaller files.
Stereo: useful when music/sound design matters.

4) Recommended workflow

Record and edit in WAV for quality headroom.
Export your final edit.
Convert to MP3/AAC for publishing with one of the presets above.

You can do the final conversion with the Music Converter directly in the browser, without uploading audio. For tighter file-size control, use the Audio Bitrate Converter. If your edit master starts as WAV, publish a compatible final copy through WAV to MP3 Converter.

5) Troubleshooting checklist

Episode sounds dull: increase bitrate one step (e.g., 96 -> 128).
File too large: switch stereo to mono for voice-first episodes.
Volume inconsistent: enable normalization before export.

If your edit master is uncompressed, you can also publish directly from WAV to MP3 for maximum compatibility.

Publish-ready settings? -> Open the Audio Bitrate Converter

Written by Free Audio Converter Online Team | Reviewed periodically | Last updated: March 2026