AC3Filter

AC3Filter is a free DirectShow filter for real time audio decoding and processing. It can decode the audio formats AC3, DTS, and MPEG Multichannel.^[1][2][3][4]

AC3Filter

Screenshot of AC3Filter 1.63b
Original author(s)	Alexander Vigovsky
Initial release	1 April 2002; 23 years ago (2002-04-01)
Stable release	2.6.0b / 5 April 2013; 12 years ago (2013-04-05)
Written in	C++
Operating system	Microsoft Windows
Available in	28 languages
List of languages Basque, Brazilian Portuguese, Bulgarian, Chinese (simplified), Chinese (traditional), Czech, Danish, Dansk, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Slovak, Slovenian, Spanish, Swedish, Turkish, Ukrainian
Type	Audio codec
License	GNU General Public License
Website	www.ac3filter.net

Features

Features include:^[5]

• Playback of video with DTS and AC3 audio tracks,
• Up-mix of any audio track (up to 6 channels),
• Encoding any audio to AC3 and transmitting it over SPDIF.