Skip to main content
Audio Conversion

Convert AAC to AU Online — Free

Fast, free AAC to AU converter. No registration required.

of importeren vanuit

2M+ bestanden geconverteerd

Vertrouwd door duizenden gebruikers

Veilige overdracht

HTTPS-versleutelde uploads

Privacy voorop

Bestanden worden automatisch verwijderd na verwerking

Geen registratie

Begin direct met converteren

Werkt overal

Elke browser, elk apparaat

Hoe te converteren

1

Upload your .aac file by dragging it into the upload area or clicking to browse.

2

Choose your output settings. The default settings work great for most files.

3

Click Convert and download your .au file when it's ready.

Wat is AAC?

AAC is an audio coding standard designed to be the successor of MP3. It provides better sound quality at similar bit rates.

Formaatdetails

Volledige naam
Advanced Audio Coding
Extensie
.aac

Belangrijkste kenmerken

  • Superior to MP3
  • Streaming optimized
  • Wide support
  • Efficient compression

Wat is AU?

AU is an audio format created by Sun Microsystems. It's one of the oldest digital audio formats, commonly used on Unix and Java platforms.

Formaatdetails

Volledige naam
Sun Microsystems Audio
Extensie
.au

Belangrijkste kenmerken

  • Unix standard
  • Java audio
  • Simple format
  • Legacy support

AAC vs AU

KenmerkAACAU
Volledige naamAdvanced Audio CodingSun Microsystems Audio
Extensie.aac.au
Beste voorSuperior to MP3Unix standard

Veelgestelde vragen

Converting between lossless formats preserves perfect quality. When converting to lossy formats, our optimized encoding minimizes any audible difference. You can adjust bitrate to control quality vs. file size.
We preserve ID3 tags, album art, and metadata when both AAC and AU support them. Some metadata may not transfer between incompatible formats.
Pro users can batch convert multiple audio files simultaneously. Free users convert one file at a time with up to 5 free conversions per day.
We support all standard sample rates from 8kHz (voice) up to 192kHz (studio quality). The default preserves your source file's sample rate.
Yes. Our audio converter handles music, podcasts, voice memos, and audiobook files. For podcasts, we recommend MP3 at 128-192kbps for the best balance of quality and file size.

Gerelateerde conversies

AAC to MP3AAC to WAVAAC to FLACAAC to M4AAAC to OGGAAC to WMAAAC to AIFFAAC to Opus