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Audio tool

Convert SND Files to AU on Your Device

Make a AU copy of SND in your browser for legacy workstation exchange. The source is processed on this device rather than transferred for remote conversion.

  • Runs in your browser
  • Private processing
  • No install
  • Files stay on device

Route SND → AU

or drop here · up to 500 MB

Max 50 MB per file

Preview (optional)

When your browser supports it, your audio plays here. You can still convert your file if preview does not load.

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Quick use cases

  • Adapt legacy sound exchange to a workflow built for legacy workstation exchange
  • Supply AU when an editor, player, or delivery form will not accept SND
  • Create a AU copy from SND for Unix workstations and older audio software

Workflow

  1. Choose a SND file from your device
  2. Confirm the planned AU filename
  3. Process the media into AU
  4. Open the downloaded AU in its intended workflow

Processing notes

  • Processing demand varies with the codecs found in the source during this SND-to-AU job.
  • High-resolution SND footage increases conversion time and memory use.
  • Keep the source until the AU result passes a full playback check.

Compatibility notes

  • AU serves Unix workstations and older audio software, whereas SND commonly serves older Unix and workstation applications.
  • For SND-to-AU delivery, plan for limited modern consumer support.
  • After leaving SND, the receiving app must support the streams encoded inside AU, not only its extension.

Troubleshooting

  • SND to AU taking too long? Reduce other processor activity and leave the page open until completion.
  • AU converted from SND not opening? Test a compatible player and inspect the output streams.
  • If AU is rejected, compare its codec and stream settings with the destination specification.

SND to AU converter FAQ

When does SND to AU conversion make sense?

It is useful when SND media created for legacy sound exchange must enter a AU system designed for legacy workstation exchange.

Where is the SND source processed?

The browser prepares AU from SND on this device instead of sending the source to a remote conversion server.

How can I approve AU converted from SND?

Test the AU file in the receiving app and compare duration, channels and loudness with the SND source.

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