Install or Update codecs: Download and install a codec pack that includes the required codec. Popular codec packs include K-Lite Codec Pack and Combined Community Codec Pack (CCCP).

It's also known as Dolby Digital. On versions of Windows prior to Windows 11, version 24H2, the AC-3 codec is included. Beginning with Windows 11, version 24H2, the AC-3 codec is no longer included with Windows. However, many device manufacturers will pre-install an AC-3 codec.

Lists the Media Feature Pack releases for Windows N editions.

There are known compatibility issues with some of the components in these codec packs, and these can trigger serious playback problems in Windows Media Player and other players, cause system corruption, and make it difficult for Microsoft Support to diagnose and troubleshoot playback issues.

To install this update, you must have Windows 10 N or Windows 11 N installed. To apply this update, you don't have to make any changes to the registry. You must restart your computer after you apply this update. This update doesn’t replace a previously released update.

To install this update, you must have Windows 10 N or Windows 11 N installed. To apply this update, you don't have to make any changes to the registry. You must restart your computer after you apply this update. This update doesn’t replace a previously released update.

This standard defines the codes for a musical event that include the start of a note, its pitch, length, volume, and musical attributes, such as vibrato. It also defines codes for various button, dial, and pedal adjustments that are used on synthesizers.

To properly play video (and even music files), Windows Media Player required an appropriate codec. Codecs are small programs that encode digital signals in a file or data and decode. Only in this way, the player can interpret the streams as a music or film and play correctly.

If your media file is in a supported format, but won't play in PowerPoint, then you can either add a missing codec to your PC (described in the procedure below) or convert the media file to the recommended format.

Fortunately, most sound problems can be fixed by following a series of troubleshooting steps. This article provides a comprehensive guide to resolving audio issues in Windows. The tips are listed in order, so start with the first one, see if that helps, and then continue to the next one if it doesn’t.