Best free AI audio cleanup for podcasts
"Cleanup" covers three different jobs: reducing noise and room echo, leveling loudness, and cutting filler words or mouth sounds. The free plans here split along those lines, and their limits are counted in very different units.
Short answer
For ongoing free speech enhancement, Adobe Podcast allows 1 hour a day, in files of up to 30 minutes. For leveling and loudness, Auphonic gives 2 hours of processed audio a month, with a jingle added. For filler words and mouth sounds, Cleanvoice offers a one-time 30-minute trial. To keep audio on your own computer, Audacity's free OpenVINO plugins add noise suppression, with a compatibility caveat.
Note: we compare published limits, not sound quality. Run one of your own episodes through each free tier before you decide.
Side by side
| # | Tool | Cleanup job | Free allowance | Source · verified |
|---|---|---|---|---|
| 01 | Adobe Podcast | Speech enhancement | Enhance Speech: 30 min / 500 MB per file, 1 h per day | Official |
| 02 | Auphonic | Leveling, loudness, AI cleanup | 2 h processed audio per month. Jingle added. No rollover. | Official |
| 03 | Cleanvoice | Filler words, mouth sounds | Trial: 30 minutes free, no credit card | Official |
| 04 | Descript | Studio Sound, filler-word removal | Both marked "Limited" on Free. 60 media min/month. 100 AI credits one-time. | Official |
| 05 | Audacity + OpenVINO | Local noise suppression | Free, open source, runs locally. Plugin compatibility caveat. | Official |
Adobe Podcast vs Auphonic on free plans
They solve different problems, and the free allowances are counted differently:
- Unit of the limit. Adobe Podcast counts per file (30 min) and per day (1 h). Auphonic counts per month (2 h). A daily cap suits frequent short files. A monthly cap suits one or two long episodes.
- Long episodes. A 60-minute track exceeds Adobe's 30-minute per-file cap, so you would split it. With Auphonic, two 60-minute episodes use the whole month's 2 hours.
- What you get back. Auphonic says productions of free users come with a jingle. Check each output before publishing.
A common $0 pattern, from our reading of the limits: enhance the speech in Adobe Podcast, then level and finish in Auphonic while the monthly hours last.
How to choose
- Noisy rooms, short segments: Adobe Podcast's daily allowance.
- Consistent loudness across episodes: Auphonic, within 2 h a month.
- Lots of "um"s: try Cleanvoice's 30-minute trial or Descript's "Limited" filler-word removal on one episode.
- Privacy or offline work: Audacity with the OpenVINO plugins processes audio on your computer.
Related: free remote recording · transcript editing · clips & audiograms