DTS to FLAC Converter
Convert DTS (Digital Theater Systems) surround sound files to FLAC format. Preserve multi-channel 5.1/7.1 audio or downmix to stereo with lossless compression. Professional-quality audio conversion powered by FFmpeg, all processing happens securely in your browser.
Recommended Settings
For Surround Archiving
- •Original channels for 5.1/7.1 preservation
- •Level 8 for maximum compression
- •Ideal for home theater collections
For Stereo Playback
- •Stereo downmix for standard devices
- •Level 5 for balanced performance
- •Works on all playback systems
Pro Tips
- •Stereo downmix intelligently combines all surround channels
- •Original preserves full 5.1/7.1 surround experience
- •All compression levels are lossless
Most Popular
Most users choose Stereo with level 5 for broad compatibility
When to Use This Tool
Preserve DTS surround sound audio from Blu-rays and DVDs in lossless FLAC format with multi-channel support.
Recommended: Original, Level 8
Downmix DTS 5.1/7.1 to stereo FLAC for standard playback on headphones, stereo systems, or portable devices.
Recommended: Stereo, Level 5
Convert DTS cinema audio to FLAC for editing in DAWs while maintaining multi-channel integrity.
Recommended: Original, Level 5
How It Works
Upload your DTS surround audio file
Select channel layout (stereo or original)
Choose FLAC compression level (0-8)
FFmpeg processes lossless FLAC encoding
Download your converted FLAC file
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by FFmpeg.wasm (WebAssembly) for optimal performance on modern browsers.
Open Source
Built with verified, open-source libraries. Fully transparent.
Frequently Asked Questions
What is DTS format?
DTS (Digital Theater Systems) is a multi-channel surround sound codec used in cinema, DVDs, and Blu-rays. Introduced in 1993 with Jurassic Park, it competes with Dolby Digital (AC3) and typically uses higher bitrates for better quality. DTS files are usually 5.1 or 7.1 surround sound.
Should I choose Stereo or Original channels?
Choose Stereo for standard playback on headphones, phones, or stereo systems - the 5.1/7.1 surround will be intelligently downmixed. Choose Original to preserve the full multi-channel surround sound for home theater systems or archiving.
What compression level should I use?
Level 5 (default) offers a good balance of compression and speed. Level 8 provides maximum compression but takes longer. All levels are lossless - they only affect file size and encoding time, not quality. For archiving surround sound, level 8 is recommended.
Will stereo downmixing lose quality?
Downmixing 5.1/7.1 to stereo is lossy in the sense that you lose the surround separation. However, the audio quality itself is preserved, and the downmix intelligently combines all channels for the best stereo representation. Most listeners won't notice a quality loss on stereo systems.
DTS vs AC3 (Dolby Digital) - which is better?
DTS typically uses higher bitrates (768-1536 kbps vs AC3's 384-640 kbps), often resulting in better sound quality. DTS is common on Blu-rays and high-end media, while AC3 is more universal. Both are lossy formats, so converting to FLAC preserves the decoded quality without further degradation.