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− | :''further information:'' [[DirectShow_Playback_Guide|'''DirectShow Playback Guide''']]
| + | #REDIRECT [[AC3]] |
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− | [[Image:Ffdshow dolby decoder.jpg|thumb|right|400px|Enabling the Dolby Decoder function of FFDSHOW.]]
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− | Video files include their audio tracks as a separate "stream" contained inside the file. This audio stream can be in a wide variety of formats, but it is very commonly one of three options: uncompressed PCM (WAV audio essentially), MP3, or AC3 (Dolby Digital). In order to properly play back the audio track you will need to have a decoder that can handle the proper audio type installed and configured on your system.
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− | Quite often, when the audio fails to play back it's because the audio track is in AC3 format. If you are using [[DirectShow_Playback_Guide:Alternative_Filters#FFDSHOW|FFDSHOW]] (or [[DirectShow_Playback_Guide#CCCP_-_Combined_Community_Codec_Pack|CCCP]]) to handle the decoding of your video files, [[DirectShow_Playback_Guide:Alternative_Filters#FFDSHOW|FFDSHOW]] can also handle decoding of AC3 content all on it's own, but you need to enable the option. Simply open the FFDSHOW Audio Decoder Configuration dialog (''Start --> Programs --> [[DirectShow_Playback_Guide:Alternative_Filters#FFDSHOW|FFDSHOW]] or Combined Community Codec Pack --> FFDSHOW Audio Decoder Configuration'') and choose Dolby Decoder from the tree on the left and enable it.
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− | Another option is to use the standalone [http://ac3filter.net/ AC3filter], which also works quite well and reliably.
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− | [[Category:Frequently Asked Questions]]
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