OGA to AU Converter

Fast OGA to AU conversion right in your browser

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Reliable OGA to AU

The converter accurately transforms OGA audio into AU format, preserving the original content throughout the process.

Cloud-Powered

All encoding happens on our servers, so even low-powered devices can convert audio without slowdowns.

Secure Conversion

Your audio never lingers on our servers — uploads are deleted instantly and results are cleared within 24 hours.

How to convert OGA to AU

1

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

2

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

3

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

About formats

OGA is the audio-only file extension within the Ogg container framework maintained by the Xiph.Org Foundation. While .ogg traditionally served as a catch-all extension for any Ogg-encapsulated stream, the introduction of .oga in 2007 brought clarity by explicitly signaling that a file contains only audio data. Under the hood, OGA files can carry audio encoded with Vorbis, FLAC, Speex, or Opus — the container is codec-agnostic, serving as a transport wrapper with support for chained logical bitstreams and granule-based seeking. One benefit of OGA is interoperability: applications that encounter the .oga extension can optimize for audio-only playback without probing for video tracks, resulting in faster load times and lower memory usage. Because the Ogg container and its associated codecs are entirely open-source and royalty-free, OGA avoids the patent licensing complexities that affect proprietary formats. The format supports Vorbis comment metadata for tagging artist, album, and track information in a standardized way. OGA plays natively in Firefox, Chromium-based browsers, VLC, and most Linux desktop environments, making it a practical choice for web audio distribution and archival workflows.
Initial release: 2007
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

Why convert OGA to AU?

Sun AU is the Unix audio standard. Convert OGA when your Solaris or Linux system requires AU-format audio.

What programs can open AU files?

Audacity, SoX, VLC, and most Unix/Linux audio utilities can open AU audio files without issues.

Are my files safe when converting OGA to AU?

Completely. Source audio is erased right after processing, and converted AU files are purged within 24 hours.

Can I convert OGA to AU on my phone?

Yes — the converter runs in any mobile browser. Works on both iOS and Android without installing an app.

Are there customization options for the AU output?

The converter lets you tweak audio settings such as bitrate, sample rate, and channels before processing.

Does converting OGA to AU cost anything?

Basic conversions are available at no charge. Premium plans unlock faster processing and higher file size limits.