How to Convert DTS to AAC

Before you start

You need a source file that contains a DTS audio track. DTS is often found in video files recorded by cameras, camcorders, or media devices. The conversion produces an AAC track that is more compatible with phones, web players, and video calling tools.

The process is usually local. A desktop media converter reads the source file on your computer and writes a new file. This avoids uploading recordings to a service. Some converters can replace the audio track while keeping the original video, so keep a copy of the source file before you start.

Step-by-step instructions

Use a converter that supports both DTS input and AAC output. The exact labels vary by version, but the workflow is similar in tools such as FFmpeg, HandBrake, or a camera maker's bundled encoder.

• Open the converter and add the source video or audio file.
• Select AAC as the output audio codec.
• If you only need audio, choose an M4A or AAC container.
• If you need the video unchanged, choose stream copy for video when the tool offers it.
• Set a stereo or original channel layout that your playback device supports.
• Choose a bitrate between 128 and 256 kbps for most speech and general recordings.
• Pick an output folder that is separate from the source file.
• Run the conversion and wait for it to finish.

In FFmpeg, a basic conversion keeps the video stream and changes only the audio stream. The command follows this pattern:

ffmpeg -i input.mkv -map 0 -c:v copy -c:a aac -b:a 192k output.mp4

Replace the input and output names with your actual files. If your source extension already matches the container, the video stream copy usually preserves picture quality. The audio settings can be adjusted later without changing the video.

Check the output

Open the new file in a media player or video editor and confirm that sound plays from the beginning, middle, and end. If the recording contains dialogue or a test tone, compare those sections with the source.

A file property or codec information view should show AAC as the audio codec. If your source had multiple audio tracks, check that the intended track was converted. Keep the original DTS file until the new file has been used successfully on the target device or in the target application.

Common problems and next steps

A common issue is silence after conversion. Check whether the converter selected the correct audio track and whether the output retains a supported channel layout. Some devices cannot play 5.1 or 7.1 AAC, so use a stereo downmix for a webcam test or video call.

Another issue is a finished file with no visible audio stream. Repeat the conversion with the audio codec set explicitly instead of relying on automatic format detection. If the tool reports an unsupported DTS profile, try a different source container or a converter with a newer DTS decoder.

If the file is intended for a browser-based tool, save it as MP4 with AAC audio. Test playback in that specific tool rather than assuming that a file that plays on the desktop will work everywhere. Adjust only the audio settings when the video already looks correct.