ferraus reverse
Play the audio backwards
Synopsis
ferraus reverse <input> [options] [-o <output>]
What it does
Reverses every channel. Combine with reverb for the classic reverse-reverb swell: reverse, reverb with --tail, reverse again.
This command is also an fx stage and a pipeline op: ferraus fx in.wav -o out.wav --fx "reverse:key=value".
Examples
Reverse a cymbal
ferraus reverse cymbal.wav -o swell.wav
Reverse-reverb pre-swell
ferraus fx vox.wav -o pre.wav --fx reverse --fx "reverb:mix=100%,tail=2s" --fx reverse
Blend the forward and backward signal for a ghostly texture
ferraus reverse speech.wav --mix 50% -o ghost.wav
Reverse every one-shot in a folder for a reversed sample pack
ferraus reverse samples/*.wav --outdir reversed/
Options
| Flag | Type | Default | Meaning |
|---|---|---|---|
--mix | percent | 100% | Dry/wet balance: 0% returns the input unchanged, 100% is fully processed |
Global options
Every command also accepts the global options (-o, --json, --dry-run, --overwrite, --progress, ...). See Global options.
Exit codes
| Code | Meaning |
|---|---|
| 0 | Success |
| 1 | Processing failed |
| 2 | Usage or parameter error |
| 3 | Input missing or unreadable |
| 4 | Unsupported format or codec |
| 8 | Cancelled |
| 70 | Internal error (bug) |
Common mistakes
- Forgetting that outputs are never overwritten: pass
--overwriteor a new-opath when re-running.
For models
- MCP tool:
ferraus_reverse - Schema:
ferraus schema reverse - Pipeline:
{ op: reverse, args: { ... } }(flag names with_instead of-) - fx stage: yes
{"command": "reverse", "defaults": {"mix": "100%"}}