How to Compress a Podcast File (Free, Browser-Based, 2026)
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Quick Answer
To compress a podcast file: upload to FileCurve Audio Compressor, set MP3 at 96kbps mono (industry standard for spoken-word podcasts). A 30-minute episode at 96kbps mono is ~21MB — ideal for podcast hosts and RSS feeds.
Step-by-step
- 1
Upload your podcast WAV or MP3 master to FileCurve.
- 2
Set output: MP3, 96kbps, mono.
- 3
For music-heavy podcasts, use 128kbps stereo instead.
- 4
Download.
- 5
Upload to Anchor, Buzzsprout, Spotify for Podcasters, etc.
Expected output
Format
MP3, mono (standard podcast format)
Quality setting
96kbps mono for talk, 128kbps stereo for music
Estimated size
10% of a WAV master
Why you might need this
- →Podcast hosts (Anchor, Buzzsprout, Transistor, RSS.com)
- →Self-hosted podcast RSS feeds
- →Archive of podcast back-catalog
- →Faster mobile listening (smaller files)
Troubleshooting
Podcast host requires 192kbps
Anchor, Buzzsprout, Spotify support up to 320kbps. 96kbps is the lowest recommended — use their spec.
Audio levels sound low
Normalize to -16 LUFS (podcast standard) with FileCurve Normalize Audio before compressing.
Frequently asked questions
What is the standard podcast bitrate?
96kbps mono for spoken-word, 128kbps stereo for music-heavy shows. Matches Spotify/Apple Podcasts recommendations.
Should a podcast be mono or stereo?
Mono — halves file size, intelligibility is identical for voice. Only stereo if music or spatial effects matter.
Does FileCurve work with a 3-hour interview file?
Yes — browser FFmpeg handles files up to your browser memory limit (typically 2GB).