Audio tool

Convert PCM Files to AC-3 on Your Device

Convert PCM to AC-3 in your browser for multichannel delivery. The source remains on your device throughout local processing.

Route PCM → AC3

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.

Ready

Use upload name

Encoding speed depends on the processor available to this tab during this PCM-to-AC-3 job.
Duration, resolution, and source bitrate affect how quickly PCM is processed.
Inspect the AC-3 file in the exact player or editor that will receive it.

AC-3 serves DVD, cinema, and home-theater audio, whereas PCM commonly serves audio engineering, interchange, and analysis.
For PCM-to-AC-3 delivery, plan for channel-layout and licensing requirements.
After leaving PCM, the receiving app must support the streams encoded inside AC-3, not only its extension.

PCM to AC-3 taking too long? Free local memory and keep the conversion tab in the foreground.
AC-3 converted from PCM not opening? Test a compatible player and inspect the output streams.
Check whether the receiver supports this AC-3 variant: channel-layout and licensing requirements.

When does PCM to AC-3 conversion make sense?

It is useful when PCM media created for uncompressed sample data must enter a AC-3 system designed for multichannel delivery.

Where is the PCM source processed?

The browser prepares AC-3 from PCM on this device instead of sending the source to a remote conversion server.

How can I approve AC-3 converted from PCM?

Test the AC-3 file in the receiving app and compare duration, channels and loudness with the PCM source.

Quick use cases