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AC3Filter

AC3Filter

AC3Filter is a high quality free audio decoder and processor filter. It allows media players to playback movies with AC3 and DTS audio tracks. Also it can process any audio track, much of processing options allows to adjust the sound in almost any way. It is possible to upmix any audio source to 6 channels. Filter can do multi-channel and digital (SPDIF) output. It can encode any audio source to AC3 on-the-fly and send it over SPDIF to the receiver.

With AC3Filter you can:

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

AC3Filter 1.46 stable

Submitted by valex on Thu, 08/16/2007 - 17:15.
AC3Filter

Release notes:

Elbrus mountain (July 2007)Elbrus mountain (July 2007)

  • AC3 encoder bitrate is now ajustable
  • Korean translation added (thanks to starcodec)
  • Upmixing of Dolby Surround files works now (thanks to Stefan Schott)
  • MPEG Audio Joint stereo playback fixed (thanks to Daniel Bechter)
  • Problem with decimal point in mixing matrix on some non-english Windows (thanks to Marcin Hencz)

Language pack includes:
Czech by Alesh
Dutch by Ernst Klamer
French by GEKA2
German by Filico
Hebrew by PhistucK UnRuleD
Hungarian by Sziladi Zsolt
Indonesian by Nicholas N.E
Italian by Gioxy
Korean by starcodec
Polish by Lukasz Pasternak
Portuguese (Brazilian) by ReX
Russian
Slovak by Artam
Spanish by Ferny
Chinese (Simplified) by FSYX

To install language pack just unzip it into AC3Filter installation folder (by default it is c:\Program Files\AC3Filter).

Downloads
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AC3Filter 1.46 Installer
AC3Filter 1.46 Language pack
AC3Filter 1.46 Source code

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