Best Audio Formats for Podcasts in 2026

Overview

Podcasts need to sound good and download fast. The right audio format can cut storage costs and improve listener experience without sacrificing quality.

The Short Recommendation

• Most podcasts: MP3 at 128–192 kbps
• Apple-first audiences: M4A (AAC) at 128–192 kbps
• Editing masters: WAV (keep for production, not distribution)

MP3 vs M4A vs WAV

MP3

Pros

• Works everywhere
• Small files

Cons

• Less efficient than AAC at the same bitrate

M4A (AAC)

Pros

• Better quality at the same bitrate
• Smaller files than MP3

Cons

• Slightly less universal than MP3

WAV

Pros

• Uncompressed and best for editing

Cons

• Very large files, not ideal for delivery

Recommended Bitrates

• Mono voice: 96–128 kbps
• Stereo voice + music: 128–192 kbps
• High fidelity: 256 kbps (rarely needed for podcasts)

Sample Rate Guidance

• 44.1 kHz is standard for podcasts
• Keep original sample rate if your audio already sounds good

Distribution Tips

• Export a master WAV for archives
• Publish a compressed MP3 or M4A for listeners
• Avoid re-encoding multiple times

Try It Online

Convert your podcast to the right format in minutes:

• Use the universal audio converter