mkvdts2ac3 ☆

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Description:
Convert DTS audio to AC3 within a matroska file

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Multimedia

Tags: audio video mkv converter multimedia

Install: brew install mkvdts2ac3

About:
Mkvdts2ac3 is a command-line utility designed to automate the conversion of DTS audio tracks to AC3 format within Matroska (MKV) video files. It streamlines the process by extracting the DTS track, converting it using eac3to, and then muxing the new AC3 track back into the container while optionally removing the original DTS track. This tool is ideal for users with home theater receivers that do not support DTS audio, ensuring broader compatibility.

Key Features:

Automates extraction, conversion, and remuxing in a single step
Optionally removes original DTS tracks to save space
Preserves all video, subtitle, and other audio tracks
Command-line interface suitable for scripting and batch processing

Use Cases:

Converting Blu-ray rips with DTS-HD audio for playback on soundbars that only support AC3
Batch processing a library of MKV files to ensure universal compatibility across devices
Reducing file size by replacing high-bitrate DTS tracks with smaller AC3 equivalents

Alternatives:

ffmpeg – A powerful, general-purpose media converter that can handle DTS to AC3 conversion manually but lacks mkvdts2ac3's specific automation for MKV containers.
mkvtoolnix – A suite of tools for muxing and editing MKV files, but it does not include built-in audio transcoding capabilities.

Version History

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