audio-volume-adjust: Design & UI for AI Agents | OpenAgentSkill

Overview

Adjusts audio file volume up or down using FFmpeg. Use when the user wants to change volume, boost or reduce loudness, attenuate or amplify SFX/UI/BGM, apply dB gain, raise/lower clip levels, or batch-adjust audio amplitude.

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Audio Volume Adjust

Apply a uniform gain change across the full clip â€?no fade, no loudness targeting. Negative dB reduces level; positive dB increases it.

Rules

When this skill applies, read and follow skill-dependency-manager â€?run scripts as documented, install missing tools into .dependency/.

Quick Start

Reduce by 6 dB (~half amplitude), output to <audio-dir>/audio-volume-adjust/<audio-name>:

.dependency/python/python .ai/audio-volume-adjust/adjust.py --audio path/to/audio.wav --volume -6

Example: audio/sfx/tank/tank_move.wav â†?audio/sfx/tank/audio-volume-adjust/tank_move.wav

Boost by 3 dB:

.dependency/python/python .ai/audio-volume-adjust/adjust.py --audio audio/sfx.wav --volume 3

Adjustment Guidelines

Goal	`--volume` (dB)
Slight reduction	-3
Half amplitude	-6
Noticeably quieter	-9 to -12
Background / distant	-15 to -20
Slight boost	+3
Noticeably louder	+6

Common Flags

--audio Â· --volume Â· -o / --output

.dependency/python/python .ai/audio-volume-adjust/adjust.py --audio audio/sfx.wav --volume -9

Originals are never modified. Input must be a single audio file (--audio), not a directory. Supported: .wav, .mp3, .ogg, .flac, .aac, .m4a, .wma.

Agent Notes

Use the bundled script, not hand-written volume filters.
Always pass --volume in dB (negative = reduce, positive = boost).
Missing Python/FFmpeg â†?populate .dependency/ per skill-dependency-manager, retry same command.
Do not copy, move, or replace the source with the adjusted output â€?tell the user where audio-volume-adjust/ files are; they swap assets manually when ready.
Do not use --output pointing at the source file; the script refuses output paths that would overwrite inputs.
Boosting (positive dB) can clip peaks â€?warn the user; prefer small boosts (+3 dB or less).
FFmpeg filter details and dB math: reference.md

CLI

Copy-paste commands: cli/audio-volume-adjust.md

View source ↗

File metadata

name: audio-volume-adjust
description: Adjusts audio file volume up or down using FFmpeg. Use when the user wants to change volume, boost or reduce loudness, attenuate or amplify SFX/UI/BGM, apply dB gain, raise/lower clip levels, or batch-adjust audio amplitude.

View original text

---
name: audio-volume-adjust
description: Adjusts audio file volume up or down using FFmpeg. Use when the user wants to change volume, boost or reduce loudness, attenuate or amplify SFX/UI/BGM, apply dB gain, raise/lower clip levels, or batch-adjust audio amplitude.
---

# Audio Volume Adjust

Apply a uniform **gain change** across the full clip â€?no fade, no loudness targeting. Negative dB reduces level; positive dB increases it.

## Rules

When this skill applies, read and follow [skill-dependency-manager](../skill-dependency-manager.md) â€?run scripts as documented, install missing tools into `.dependency/`.

## Quick Start

Reduce by 6 dB (~half amplitude), output to `<audio-dir>/audio-volume-adjust/<audio-name>`:

```bash
.dependency/python/python .ai/audio-volume-adjust/adjust.py --audio path/to/audio.wav --volume -6
```

Example: `audio/sfx/tank/tank_move.wav` â†?`audio/sfx/tank/audio-volume-adjust/tank_move.wav`

Boost by 3 dB:

```bash
.dependency/python/python .ai/audio-volume-adjust/adjust.py --audio audio/sfx.wav --volume 3
```

## Adjustment Guidelines

| Goal | `--volume` (dB) |
|------|-----------------|
| Slight reduction | -3 |
| Half amplitude | -6 |
| Noticeably quieter | -9 to -12 |
| Background / distant | -15 to -20 |
| Slight boost | +3 |
| Noticeably louder | +6 |

## Common Flags

`--audio` Â· `--volume` Â· `-o` / `--output`

```bash
.dependency/python/python .ai/audio-volume-adjust/adjust.py --audio audio/sfx.wav --volume -9
```

Originals are never modified. Input must be a single audio file (`--audio`), not a directory. Supported: `.wav`, `.mp3`, `.ogg`, `.flac`, `.aac`, `.m4a`, `.wma`.

## Agent Notes

1. Use the bundled script, not hand-written `volume` filters.
2. Always pass `--volume` in dB (negative = reduce, positive = boost).
3. Missing Python/FFmpeg â†?populate `.dependency/` per skill-dependency-manager, retry same command.
4. **Do not copy, move, or replace the source with the adjusted output** â€?tell the user where `audio-volume-adjust/` files are; they swap assets manually when ready.
5. Do not use `--output` pointing at the source file; the script refuses output paths that would overwrite inputs.
6. **Boosting** (positive dB) can clip peaks â€?warn the user; prefer small boosts (+3 dB or less).
7. FFmpeg filter details and dB math: [reference.md](reference.md)

## CLI

Copy-paste commands: [cli/audio-volume-adjust.md](../../../cli/audio-volume-adjust.md)

Review the source

Skill source recorded

Skill instructions are recorded. This is not a runtime test, safety guarantee or compatibility certification.

Review before install: Avoid automatic install

License: MIT

Potential broker, wallet, exchange, or real-money execution surface; sandbox and explicit approval are required
This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.
Quality score needs review
Stars/forks activity: 136 stars, 14 forks; issue activity unavailable in current metadata

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Source & usage notes

Indexed

Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.

Source repository: godot-fun/godot-agent
License: MIT
Version: 1.0.0
Last GitHub push: Sep 3, 2026
Registry updated: Sep 4, 2026
Instruction path: .cursor/skills/audio-volume-adjust/SKILL.md @ cd44b049c7f6

Version reported in registry metadata; check source releases before relying on it.

Quality

68/100

Promising

Trust

70/100

Agent access

This page exposes the same decision, trust, audit, use-case, and install signals through the Registry API, so agents can rank this skill without scraping the UI.

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More details

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Source: godot-fun/godot-agent
Indexed by: OpenAgentSkill community index

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