# Remove silence from audio

Shorten long pauses automatically, so speech flows.

Tool: Remove silence (`remove_silence`). Price: 1 credit a minute of input for whole files, charged only when a job succeeds.

## Free API

```bash
curl -F file=@episode.wav https://audo.ai/api/try/remove-silence -o episode-tight.wav
```

Free for the first 3 minutes of each file, 3 times a day per person, with no key or account. Uploads up to 100 MB, 2 at once from one address. The response is the result itself; a job that runs longer than about 30 seconds returns 202 with a link to check on it. With an API key (`-H "Authorization: Bearer $AUDO_API_KEY"`), the same request processes the whole file with credits. Details: https://audo.ai/docs/api.md

## Options

Form fields with the same names as the MCP tool's inputs:

- `min_pause_seconds`: Shortens pauses at least this long, in seconds (0.3 to 5), such as 0.7. Default 0.7.
- `keep_seconds`: How much of each pause to keep, in seconds (0 to 1), such as 0.25. Default 0.25.

## Languages

Any language: it works on the sound, not the words.

## From an assistant (MCP)

Add https://audo.ai/mcp and sign in (setup for each assistant: https://audo.ai/setup.md). The tool is `remove_silence`:

> Shortens long pauses in a recording. Use it to tighten speech or a podcast. It doesn't detect filler words. Set free to true to do the first 3 minutes at no cost, up to 3 times a day; otherwise it costs 1 credit a minute. Returns job_id; the result lists what was removed and maps old times to new ones.

Example: "Use Audo to shorten every pause longer than a second in episode-12.mp3."

## More

- Every tool: https://audo.ai/llms.txt
- OpenAPI: https://audo.ai/api/openapi.json
- This page for people: https://audo.ai/silence-remover