Can I convert multiple AC3 files to FLAC at once?

Yes! Batch conversion is supported. Free users can convert up to 1 file at a time, while registered users can convert up to 50 files simultaneously depending on their plan (Basic: 5 files, Bronze: 10 files, Silver: 25 files, Gold: 50 files). Simply upload multiple AC3 files and they'll all be converted to FLAC.

How long does AC3 to FLAC conversion take?

Conversion time depends on file size, complexity, and current queue. Most AC3 to FLAC conversions complete within seconds to a few minutes. Larger files or complex conversions may take longer. Premium users enjoy priority processing with faster conversion times.

What's the maximum file size I can convert?

File size limits depend on your account tier: • Non-members: 250MB • Basic (Free): 500MB • Bronze ($4.99/mo): 2GB • Silver ($9.99/mo): 5GB • Gold ($19.99/mo): 10GB For larger files, please upgrade to a premium plan.

Do you store my converted files?

We temporarily store your files to enable conversion and download. Files are automatically deleted after a retention period based on your account tier: • Non-members: 6 hours • Basic: 24 hours • Bronze: 7 days • Silver: 30 days • Gold: 60 days After this period, files are permanently deleted from our servers. We never share your files with third parties.

What audio quality settings should I use?

Recommended settings: • Music (high quality): 320kbps bitrate, 44.1kHz sample rate • Music (standard): 192kbps bitrate, 44.1kHz sample rate • Podcasts/Voice: 96-128kbps bitrate, 44.1kHz sample rate • Archival/Lossless: FLAC or WAV format Higher bitrates mean better quality but larger files. For most listening, 192-256kbps provides excellent quality.

AC3 to FLAC Converter

Convert AC3 files to FLAC format instantly with our free online converter. Fast, secure, and easy to use.

✓ 100% Free✓ Online Tool✓ No Download Required✓ Fast Conversion

AC3

FLAC

Upload your AC3 file

By uploading a file, you agree to our Terms of Service and Privacy Policy

AC3 Conversion - Convert AC3 to:

Select a format to convert your AC3 file to:

MP3 WAV FLACCurrent AAC OGG M4A WMA AIFF OPUS AMR APE

About AC3 to FLAC Conversion

What is AC3?

AC3, also known as Dolby Digital, is a lossy audio compression format widely used in DVD, Blu-ray, and digital television broadcasting. It supports multi-channel surround sound.

What is FLAC?

FLAC is an open-source lossless audio compression format that reduces file size without any quality loss. It compresses audio to about 50-60% of original size while preserving perfect quality.

Why Convert AC3 to FLAC?

FLAC offers different compatibility advantages
Optimize file size for storage or streaming
Meet format requirements for specific platforms
Preserve audio quality in preferred format
No software installation needed

How to Convert AC3 to FLAC

Upload your AC3 file

Click convert to start the conversion

Download your FLAC file

Batch Conversion Supported

You can convert multiple AC3 files to FLAC at once. Simply upload multiple files or create an account for larger batch limits.

Start Converting Now

Advanced Conversion Options

Customize your conversion with these advanced options to get the perfect output for your needs.

Bitrate

select

Audio bitrate (higher = better quality, larger file)

Available Options:

64 kbps96 kbps128 kbps192 kbps (Default)256 kbps320 kbps (Maximum)

💡 Recommendation:

Use 192kbps for general listening, 320kbps for high-quality music, or 128kbps for voice/podcasts.

Quality (VBR)

slider

Variable bitrate quality for MP3/OGG (0=best, 9=smallest)

Range: 0 to 9 (step: 1)

Default: 2

Sample Rate

select

Audio sample rate in Hz

Available Options:

22.05 kHz44.1 kHz (CD Quality)48 kHz (DVD Quality)96 kHz (High-Res)

💡 Recommendation:

Stick with 44.1kHz for most music, use 48kHz for video soundtracks.

Channels

select

Audio channel configuration

Available Options:

Mono (1 channel)Stereo (2 channels)

Normalize Volume

toggle

Automatically adjust audio levels

Default: Disabled

💡 Recommendation:

Enable for consistent volume across multiple audio files.

How to Use Advanced Options

When using our converter, you can access advanced options by expanding the "Options" section before starting the conversion. These settings allow you to fine-tune the output quality, file size, and compatibility to match your specific needs.

Frequently Asked Questions

Common questions about AC3 to FLAC conversion

Yes! Our AC3 to FLAC converter is completely free for files up to 250MB. You can convert up to 10 files per day without creating an account. For larger files (up to 10GB) and unlimited conversions, consider our premium plans starting at $4.99/month.

Still have questions about our AC3 to FLAC converter?

Contact Support