How do I convert RAW audio to AU using LetsConvert?

Upload your RAW file, set the source PCM parameters (sample rate, bit depth, channels), select AU as the output format, and click Convert. LetsConvert wraps the raw PCM data in an AU header, so no re-encoding occurs—your audio remains bit-perfect. Download the .au file and play it on any Unix/Linux media player.

Why should I convert RAW to AU?

RAW audio has no header, so playback depends on manual settings. AU (Sun Audio) embeds sample rate, bit depth, and channel count in its header, making it instantly recognized by legacy Unix applications, embedded systems, and audio editors. This reduces setup errors and ensures your audio plays correctly without external configuration.

How does converting RAW to AU affect audio quality?

When you keep the same PCM codec (e.g., linear PCM), the conversion is lossless: the raw samples are copied unchanged and the AU header is added. Sample rate, bit depth, and channel data are preserved exactly. If your RAW file contains non-linear data while AU expects a specific encoding, re-encoding may be required—LetsConvert lets you control this, defaulting to lossless linear PCM to avoid quality loss.

Is RAW-TO-AU free to use?

Yes, RAW-TO-AU on LetsConvert is 100% free with no registration or hidden fees required.

Are my uploaded files safe and secure?

Yes! File privacy and security are guaranteed. Basic conversions run locally in your browser. Files sent for server processing are automatically deleted within 1 hour.

Does this converter work on mobile phones and tablets?

Yes! RAW-TO-AU works seamlessly across iPhone, Android, iPad, Mac, Windows, and Linux browsers without installing any app.

Is there any software installation required?

No software or browser extension installation is needed. All conversions are performed directly online.

RAW➔AU· 100% Free & 320kbps

RAW-TO-AU

Convert RAW PCM audio to AU (Sun Audio) losslessly with custom sample rate, bit depth, and channels. Perfect for legacy Unix players and compatibility.

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4.9 / 5.0(33 user ratings)

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Supports up to 50MB · Studio quality sound

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RAW

RAW File Format

Source Format

RAW is a standardized digital file format supported by LetsConvert. Convert RAW files securely, privately, and instantly online with zero software installation, bank-grade encryption, and automatic 60-minute file purging.

Category: Data & Media File

MIME Type: application/raw

Developer: Standard Organization

Best For: Converting and managing RAW files across devices and applications.

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AU

AU File Format

Target Output

AU is a standardized digital file format supported by LetsConvert. Convert AU files securely, privately, and instantly online with zero software installation, bank-grade encryption, and automatic 60-minute file purging.

Category: Data & Media File

MIME Type: application/au

Developer: Standard Organization

Best For: Converting and managing AU files across devices and applications.

💡 Technical Guide & Conversion Insights

Why Convert RAW to AU?

Converting from RAW (RAW File Format) to AU (AU File Format) is essential when you need enhanced compatibility, reduced file size, or specific feature support. While RAW is ideal for Converting and managing RAW files across devices and applications., AU offers superior advantages for Converting and managing AU files across devices and applications.. Our secure online conversion engine ensures that all your RAW file attributes, geometry, quality, and metadata are seamlessly preserved during the transformation into AU.

● RAW Key Advantages:

✓Standard format compatibility
✓Fast online conversion processing
✓Zero software install required

● AU Key Advantages:

★Standard format compatibility
★Fast online conversion processing
★Zero software install required

RAW vs AU Comparison Table

Detailed technical differences and capabilities between RAW File Format and AU File Format.

Feature / Attribute	RAW	AU
Primary Format Name	RAW File Format	AU File Format
Primary File Category	Data & Media File	Data & Media File
Standard MIME Type	application/raw	application/au
Core Developer / Standard	Standard Organization	Standard Organization
Optimal Use Case	Converting and managing RAW files across devices and applications.	Converting and managing AU files across devices and applications.

❓ Common Questions

Frequently Asked Questions (RAW to AU)

Everything you need to know about converting RAW to AU with LetsConvert.

To convert your RAW file to AU, upload your file by dragging and dropping it into the upload box or selecting it from your device. Adjust any optional quality or dimension settings, then click 'Convert'. Your converted AU file will be ready for instant high-speed download within seconds.

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100% Secure & Automatic File Purging

Your RAW files are encrypted with 256-bit SSL and permanently deleted from our servers within 60 minutes.

● Zero File Storage

How to Convert RAW-TO-AU

Select or drop your Raw file.

Initiate the AU conversion process.

Download your converted AU file.

⚡ Related Audio Tools

RAW-TO-AU

RAW

AU

Why Convert RAW to AU?

● RAW Key Advantages:

● AU Key Advantages:

RAW vs AU Comparison Table

Frequently Asked Questions (RAW to AU)

100% Secure & Automatic File Purging

How to Convert RAW-TO-AU

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