Is it free to convert between AU and DTS?

Yes, Convert999 is 100% free. All conversions happen locally in your browser with no file size limits, no registration, and no watermarks.

.au

.dts

AU vs DTS

Compare Sun Audio and DTS Audio formats — understand the key differences and when to use each

Format Overview

AU

Sun Audio

Sun Audio (.au) is a audio file format.

.auaudio

DTS

DTS Audio

DTS Audio (.dts) is a audio file format.

.dtsaudio

AU vs DTS: Feature Comparison

Feature	AU	DTS
Full Name	Sun Audio	DTS Audio
File Extension	.au	.dts
Category	audio	audio
Free to Convert	✓ Yes	✓ Yes
Browser Support	✓ All Browsers	✓ All Browsers
Convert to Each Other	✓ Yes	✓ Yes

When to Use AU vs DTS

Use AU when you need:

•Files in Sun Audio format for maximum compatibility
•Industry-standard audio format support
•Wide software and platform compatibility

Use DTS when you need:

•Files in DTS Audio format for specific workflows
•Optimized audio format features
•Modern format advantages and smaller file sizes

Convert Between Them

AU DTS DTS AU

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Learn More About These Formats

AU Converter DTS Converter

Frequently Asked Questions

What is the difference between AU and DTS?

AU (Sun Audio) and DTS (DTS Audio) are both audio file formats. AU files use the .au extension while DTS uses .dts. They differ in compression, quality, compatibility, and intended use cases.

Can I convert AU to DTS for free?

Yes! Convert999 lets you convert AU to DTS completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.

Which is better, AU or DTS?

It depends on your use case. AU (Sun Audio) may be better for certain workflows, while DTS (DTS Audio) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.

Is it safe to convert files on Convert999?

Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

AU Converter

Convert from AU

DTS Converter

Convert from DTS

File Tools

Compress, resize, merge

Convert to AU

All sources → AU

Convert to DTS

All sources → DTS

Format Statistics

Trends & data 2025

More Format Comparisons

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Feature

DTS

Full Name