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Microsoft Drops Built-In Dolby Digital (AC-3) Codec

Microsoft has announced that the latest Windows 11 update, version 24H2, will no longer include the AC-3 audio codec, commonly known as Dolby Digital.
 

Microsoft drops AC3 Audio Codec


The AC-3 Codec is popular for supporting multi-channel, surround-sound audio playback.

Up until now, this codec was available as a standard feature on Windows versions prior to Windows 11, 24H2.

For users upgrading from older Windows versions, there’s some good news: the AC-3 Codec will still be retained during the upgrade, meaning Dolby Digital playback will remain available.

Also, many device manufacturers are expected to continue pre-installing the AC-3 Codec on their systems, ensuring that playback of AC-3-encoded files should still work on new devices.

Download DTS/AC3 Source Filter

Download AC3 Filter


Windows users may need to check with their device manufacturers or explore third-party solutions if they encounter any issues with AC-3 encoded audio after updating.

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RC
ROUTIN Claude
on 27 September 2025
Pationné de films, pendant 50 ans j'ai filmé, converti, archivé, et stocké mes souvenirs pour pouvoir les revoir et les transmettre.

Et d'un seul coup, pour un petit codex (AC3) il faudrait que je passe le restant de ma vie pour convertir et remanier tout cela.

Mes photos en N/B récupérées des siècles passés auront été d'une plus grande pérénnité.

Vive le progrès !
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