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skill/Get-VideoAudio.md

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+# Get-VideoAudio.ps1
+
+Extracts audio in either WAV or MP3 format from a video file.
+
+## Parameters
+
+- **`-Video`** (required): Path to input video file (absolute or relative)
+- **`-Output`** (optional): Path to output audio file (defaults to video filename with `.wav` or `.mp3` extension)
+- **`-MP3`**: Extract audio as MP3 at 320 kbps instead of WAV
+
+## Examples
+
+**Extract audio as WAV (default):**
+
+```powershell
+.\Get-VideoAudio.ps1 -Video video.mp4
+# Creates video.wav in the same directory
+```
+
+**Extract audio as MP3:**
+
+```powershell
+.\Get-VideoAudio.ps1 -Video video.mp4 -MP3
+# Creates video.mp3 in the same directory
+```
+
+**Specify custom output path:**
+
+```powershell
+.\Get-VideoAudio.ps1 -Video video.mp4 -Output audio\soundtrack.wav
+```
+
+**Extract MP3 with custom output:**
+
+```powershell
+.\Get-VideoAudio.ps1 -Video video.mp4 -Output music.mp3 -MP3
+```
+
+**Using absolute paths:**
+
+```powershell
+.\Get-VideoAudio.ps1 -Video "C:\Videos\movie.mp4" -Output "D:\Audio\soundtrack.mp3" -MP3
+```
+
+**Using relative paths:**
+
+```powershell
+.\Get-VideoAudio.ps1 -Video ..\videos\clip.mp4 -Output .\audio\clip.wav
+```
+
+## Behavior
+
+- If the video file has no audio stream, the script displays a message and exits without creating an output file
+- WAV format uses PCM 16-bit encoding (lossless)
+- MP3 format uses 320 kbps bitrate (highest quality)
+- If output file already exists, it will be overwritten
+
+## Safe Execution
+
+This script supports `-WhatIf` and `-Confirm` for safe execution:
+
+- **`-WhatIf`**: Simulate the operation without actually creating files. Shows what would be done.
+- **`-Confirm`**: Prompt for confirmation before extracting audio.
+
+**Simulate without making changes:**
+
+```powershell
+.\Get-VideoAudio.ps1 -Video video.mp4 -MP3 -WhatIf
+```
+
+**Prompt before extracting:**
+
+```powershell
+.\Get-VideoAudio.ps1 -Video video.mp4 -Output soundtrack.wav -Confirm
+```
+
+## Notes
+
+Requires `ffmpeg` and `ffprobe` to be installed and available in the system PATH.