How to Convert Audio to DTS Using FFmpeg

This article provides a straightforward guide on how to transcode audio files to the DTS (Digital Theater Systems) format using the powerful command-line tool FFmpeg. You will learn the exact command syntax, key parameters for adjusting bitrate and audio channels, and practical examples for seamless audio conversion.

To transcode any audio file to the DTS format, use the native FFmpeg DTS encoder. Below is the standard command to convert an input file to DTS:

ffmpeg -i input.wav -c:a dts output.dts

Encoding 5.1 Surround Sound to DTS

DTS is most commonly used for multi-channel surround sound. If you are converting a 6-channel audio source (such as a 5.1 WAV or FLAC file) to DTS, you should specify the target bitrate and channel count to ensure optimal quality:

ffmpeg -i input.wav -c:a dts -b:a 1500k -ac 6 output.dts

Command Parameters Explained

• -i input.wav: Specifies the input file. This can be an audio file or a video file containing an audio track.
• -c:a dts: Sets the audio codec to the native FFmpeg DTS encoder.
• -b:a 1500k: Sets the audio bitrate. For high-quality 5.1 DTS audio, 1500k (representing 1536 kbps) or 768k (representing 768 kbps) are the standard choices.
• -ac 6: Sets the channel count. Use 6 for 5.1 surround sound, or 2 if you are transcoding to stereo DTS.

Extracting and Converting Audio from a Video File

If you want to extract the audio track from a video file (such as an MKV or MP4) and transcode it directly into a standalone DTS audio file, use the following command:

ffmpeg -i input.mkv -vn -c:a dts -b:a 1500k output.dts

The -vn option blocks the video stream, instructing FFmpeg to process and export only the audio track.