Download the AC-3 ACM Codec or AC-3 ACM Decompressor is a software component that allows the playback of audio files encoded with the AC-3 (Dolby Digital) audio codec. It is typically installed as part of a media player or codec pack. See the list of media players on this website.
AC-3 ACM Codec
To install an AC-3 ACM Decompressor, you can download and install a codec pack that includes the AC-3 codec. You can 
download the file below or install a media player that includes the codec. These players include but not limited to the VLC Media Player as well as the PotPlayer. Once the codec pack or media player is installed, it should automatically handle playback of AC-3 encoded audio files.
If you are still having trouble playing the files, you may need to configure your media player or system settings to use the codec. You will note that the software uses two open source libraries: liba52 as well as the FFmpeg ac3enc. This is also an excellent decompressor for VirtualDub. See also the codec tools on here.
AC-3 ACM with AviSynth
The AviSynth software is a powerful and well-known open-source video processing tool. This can be used with the decompressor to decode as well as process audio and video files. The AviSynth can be used to open and decode audio and video files. It can also apply various video and audio filters, and then export the processed files. To make use of the AviSynth with this decompressor, both AviSynth and the AC-3 codec must be installed on your system.
AC-3 ACM with TMPGEnc
The TMPGEnc is a video encoding and editing software. This can be used with the AC-3 ACM Decompressor to decode and process audio and video files. The TMPGEnc is used to import audio and video files, edit them, and then export them in a different format. Install both on your system. Once installed, use TMPGEnc to import an AC-3 encoded audio file, apply any desired audio and video filters, and then export the processed file in a different format.
Note that both TMPGEnc and AviSynth takes time to master.
Installing the AC-3 ACM Codec
If you wish to install the software. Then you will see that it install with the “AC3ACM.inf” file. You need to download the file and extract the content. Inside the zip file is an INF file. You will need to right-click on the INF file and then click on install. Simply ignore any errors which the software might give. Note that if you wish to uninstall the software. Then go to Control Panel, “Add/Remove programs” and uninstall AC-3 ACM Codec.
You will note that this will also fix the GSpot: ac3 (0x2000) error. See also the codec tools as well as MPC-HC player and AAC ACM codec as well.
Download AC-3 ACM Codec
