AC3Filter 1.51a

AC3Filter is a high quality free DirectShow filter designed for real time audio decoding and processing. It has a priority on wide functionality and convenient settings. Filter can decode following audio formats: AC3/DTS/MPEG Audio. It also supports multi-channel and digital (SPDIF) outputs.

Playback:

• Watch movies with AC3 and DTS audio tracks
• Listen multi-channel (AC3/DTS) AudioCD
• Playback WAV files with AC3/DTS content, ripped from multi-channel AudioCD without any conversion of these files.
• Playback raw .AC3 and DTS files (with help of AC3File filter)

Process:

• Up-mix any audio track (even plain stereo) up to 6 channels
• Down-mix any audio track to any number of channels (to match your speaker configuration)
• If you have an external Dolby ProLogic decoder, you may use ProLogic down-mix to help DPL decoder to extract surround information
• Watch movies under poor hearing conditions (noisy environment, weak speakers, …)
• Decrease dynamic range to watch movies at night
• Apply time shift to the audio track to synchronize audio with video.
• Adjust gain of every input/output channel independently to compensate loudness differences
• Adjust time delays for every channel to compensate different distances to loudspeakers.

SPDIF output:

• Passthrough AC3 and DTS over SPDIF without any change to external decoder
• Encode any audio to AC3 and transmit it over SPDIF
• USB sound cards supported

Download: AC3Filter 1.51a (2.70 MB)