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

Extract audio as WAV (default):

.\Get-VideoAudio.ps1 -Video video.mp4
# Creates video.wav in the same directory

Extract audio as MP3:

.\Get-VideoAudio.ps1 -Video video.mp4 -MP3
# Creates video.mp3 in the same directory

Specify custom output path:

.\Get-VideoAudio.ps1 -Video video.mp4 -Output audio\soundtrack.wav

Extract MP3 with custom output:

.\Get-VideoAudio.ps1 -Video video.mp4 -Output music.mp3 -MP3

Using absolute paths:

.\Get-VideoAudio.ps1 -Video "C:\Videos\movie.mp4" -Output "D:\Audio\soundtrack.mp3" -MP3

Using relative paths:

.\Get-VideoAudio.ps1 -Video ..\videos\clip.mp4 -Output .\audio\clip.wav

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)

An existing output file, the default <video>.wav or <video>.mp3, or the -Output path, is replaced without a prompt. ffmpeg runs with -y, so the old file is lost. Use -WhatIf first, or write to a new name.
If the output folder does not exist, ffmpeg fails and the script stops with an error.
If the video has no audio stream, the script prints a message and exits successfully. It creates no file and leaves any existing output untouched.

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:

.\Get-VideoAudio.ps1 -Video video.mp4 -MP3 -WhatIf

Prompt before extracting:

.\Get-VideoAudio.ps1 -Video video.mp4 -Output soundtrack.wav -Confirm

Requires ffmpeg and ffprobe to be installed and available in the system PATH.