AAF to AU Converter

Pull the soundtrack from AAF videos into AU format

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Audio Extraction

The converter pulls the audio track from AAF and delivers a clean AU file — stripping away the video data you do not need.

In-Browser Tool

No extensions, plugins, or downloads required. Everything runs in your web browser — just visit the page and start converting.

Adjustable Settings

Fine-tune audio parameters — codec, bitrate, and quality — before converting to tailor the output precisely.

How to convert AAF to AU

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

Choose au or any other format you need as a result (more than 200 formats supported)

Let the file convert and you can download your au file right afterwards

About formats

AAF (Advanced Authoring Format) is a professional multimedia interchange format designed to facilitate the exchange of production data between content creation tools. Originally developed by a consortium including Microsoft, Avid Technology, and Adobe Systems, the format is now maintained by the Advanced Media Workflow Association (AMWA). First released in 1998, AAF provides a rich metadata framework that preserves not just audio and video essence data but also editorial decisions, effects parameters, transitions, and timeline structures. This makes it particularly valuable in post-production workflows where projects move between different editing systems and need to retain complex composition information that simpler formats would discard. AAF supports both embedded and referenced media, giving editors the flexibility to bundle everything into a single file or keep media external with linked references. The format handles multiple video and audio tracks with full timecode support, making it a reliable vehicle for broadcast and film projects. A structured approach to metadata preservation means that transitions, keyframes, and clip relationships survive the round-trip between applications, reducing rework and manual reconstruction when collaborating across different production platforms.

Developer: Advanced Media Workflow Association

Initial release: April 3, 1998

AU is an audio file format introduced by Sun Microsystems for its Unix workstations and the NeXT platform. It features a minimal 24-byte header specifying data offset, size, encoding type, sample rate, and channel count, followed by the audio payload. AU supports numerous encodings, including uncompressed linear PCM at various bit depths, mu-law and A-law companding (logarithmic compression used in telephone systems), and several ADPCM variants. This versatility made AU a workhorse across early Unix environments, web audio (Java applets defaulted to AU), and telephony applications. One advantage is simplicity: the compact header and straightforward structure make it trivial to parse, generate, and stream programmatically. The built-in mu-law option provides another benefit, delivering reasonable voice quality at just 8 KB per second — half the rate of 16-bit uncompressed audio — invaluable when storage and bandwidth were scarce. Although modern formats have largely supplanted AU in consumer applications, it retains a foothold in scientific computing and audio processing pipelines where minimal overhead and reliable cross-platform behavior are valued.

Developer: Sun Microsystems

Initial release: 1992

Frequently Asked Questions

What is the benefit of converting AAF to AU?

Pulling AU audio from an AAF project gives you a standalone sound file without the complexity of professional editing containers.

What program opens AU files?

Audacity, VLC, and Unix/Linux audio applications support Sun/Unix AU audio natively.

Will the audio quality match the original?

You can set the output bitrate to match or exceed the original audio quality. Higher settings preserve more detail from the AAF source.

How fast is the audio extraction?

Audio extraction is quicker than full video conversion since only the sound track is processed. Most files are done within seconds.

Can I choose the audio bitrate?

Yes. Adjust the bitrate, sample rate, and channel count before converting to get the AU quality that suits your listening needs.

Related Conversions

AAF to MP4

AAF to MP3

AAF to WAV

AAF to GIF

AAF to AVI

AAF to MOV

AAF to AIFF

AAF to WMV

AAF to AAC

AAF to M4A

AAF to MPEG-2

AAF to FLV

AAF to MKV

AAF to MXF

AAF to SLN

AAF to DIVX

AAF to WVE

AAF to MJPEG

AAF to XVID

AAF to HEVC

AAF to AV1

AAF to AVCHD

AAF to RMVB

AAF to F4V

AAF to M2V

AAF to 3G2

AAF to 3GP

AAF to ASF

AAF to M4V

AAF to MPG

AAF to MPEG

AAF to MTS

AAF to M2TS

AAF to RM

AAF to OGV

AAF to SWF

AAF to TS

AAF to VOB

AAF to WEBM

AAF to WTV

AAF to AC3

AAF to FLAC

AAF to OGG

AAF to AMR

AAF to M4R

AAF to WMA

AAF to DTS

AAF to OPUS

AAF to SPX

AAF to CAF

AAF to W64

AAF to WV

AAF to VOC

AAF to TTA

AAF to RA

AAF to MP2

AAF to OGA

AAF to PVF

AAF to PRC

AAF to MAUD

Specific converters

MP3 to AU

WAV to AU

MP4 to AU

M4A to AU

OGG to AU

AAC to AU

MPEG to AU

FLAC to AU

WMA to AU

3GP to AU

OPUS to AU

AMR to AU

ASF to AU

AVI to AU

WEBM to AU

MOV to AU

WVE to AU

AIFF to AU

FLV to AU

MKV to AU

SND to AU

CAF to AU

WMV to AU

MP2 to AU

MPG to AU

AC3 to AU

M4R to AU

3G2 to AU

AAF to AU

AV1 to AU