A cross-platform, multi-format audio conversion and tagging suite for .NET and PowerShell. Formats currently supported are MP3, MP4 AAC, FLAC, Apple Lossless (ALAC), Opus, Ogg Vorbis and Wave.

Main Branch	Dev branch

How to Use

Encode some files

PowerShell:

$flacFiles = Get-AudioFile '<path to an album>\*.flac'

# Export the files to Opus format, organized into directories and named according to metadata
$files | Export-AudioFile "Opus" -Path "C:\Output\{Album} by {Artist}" -Name "{TrackNumber} - {Title}" -SignalType Speech -BitRate 32 -Force

C#:

var flacFiles = new DirectoryInfo("<path to an album>")
    .GetFiles("*.flac")
    .Select(file => new TaggedAudioFile(file.FullName));

// Export the files to Opus format, organized into directories and named according to metadata
var opusEncoder = new AudioFileEncoder("Opus")
{
    EncodedDirectoryName = @"C:\Output\{Album} by {Artist}",
    EncodedFileName = "{TrackNumber} - {Title}",
    Overwrite = true,
    Settings = new()
    {
        ["SignalType"] = "Speech",
        ["BitRate"] = 32
    }
};
await opusEncoder.EncodeAsync(flacFiles);

Set metadata (tags)

PowerShell:

$flacFiles = Get-AudioFile '<path to an album>\*.flac'

# Add ReplayGain tags, analyzing the files as a single album
$flacFiles | Measure-AudioFile -Analyzer ReplayGain

# Set the artist as well, then persist the new tags to disk
$flacFiles | Set-AudioMetadata -Artist "Iron Butterfly"
$flacFiles | Save-AudioMetadata

C#:

var flacFiles = new DirectoryInfo("<path to an album>")
    .GetFiles("*.flac")
    .Select(file => new TaggedAudioFile(file.FullName));

// Add ReplayGain tags, analyzing the files as a single album
var replayGainAnalyzer = new AudioFileAnalyzer("ReplayGain");
await replayGainAnalyzer.AnalyzeAsync(flacFiles);

// Set the artist as well, then persist the new tags to disk
foreach (var flacFile in flacFiles)
{
    flacFile.Metadata.Artist = "Iron Butterfly";
    flacFile.SaveMetadata();
}

System Requirements

AudioWorks runs on Windows, MacOS, and Linux. You will need PowerShell 7.4+. "Windows PowerShell" (aka PowerShell 5.1) which is included with Windows, is no longer supported.

On Windows:

• For AAC and Apple Lossless (ALAC) support, you need Apple's Core Audio library

On Ubuntu 24.04 (other distros should also work, but are untested):

• Install all dependencies with apt install libflac12t64 libmp3lame0 libvorbisenc2 libopusenc0 libebur128-1

A standard installation should only be missing libopusenc and libebur128.

Installation

The AudioWorks PowerShell module can found on the PowerShell Gallery.

Keep the module up to date with Update-Module -Name AudioWorks.Commands.

The .NET API is available via NuGet.

Special Thanks

This project wouldn't be possible without the work of these other fine projects and organizations:

• Hydrogen Audio Forums, a scientifically-minded community of digital audio enthusiasts.
• The LAME Project, maintainers of the high-quality MP3 encoder.
• The Xiph.Org Foundation, maintainers of Opus, Ogg Vorbis and FLAC (the Free Lossless Audio Codec).
• libebur128, a library implementing the EBU R.128 loudness standard.
• QAAC, a command-line front-end for Apple's AAC and Apple Lossless encoders.