AC3Filter -

AC3Filter 1.50a

valex — Mon, 30 Jun 2008 19:40:00 +0400

Release notes:

Equalizer
Spectrum analyzer
Sample rate conversion
spdif_test utility
New and updated translations
Old bugs killed, new made :)

AC3Filter tools 0.2a

valex — Mon, 30 Jun 2008 19:38:15 +0400

Release notes:

Equalizer tool - graphic equalizer
Filter tool - parametric filter
Gain tool - amplify/fade
Resample tool - sample rate conversion
WAVDiff - measure the difference between audio files
New options & some bugs fixes
Built on AC3Filter 1.50a code base

Spdifer 0.2a

valex — Sun, 14 Oct 2007 05:36:15 +0400

New! Spdifer is a DirectShow filter that allows media players to passthrough multi-channel sound to the digital (SPDIF) output without any change, so an external receiver can decode it.

Release notes:

Supports passthrough for AC3, DTS and MPEG Audio (including mp3) formats. All passthrough features of the 'big brother' AC3Filter are supported.

AC3Filter 1.46 installer fixed

valex — Sat, 18 Aug 2007 12:48:43 +0400

It was a problem with installer in AC3Filter 1.46. If you have problems with installing it, please download it again. Sorry for inconvenience.

AC3Filter tools 0.1a

valex — Sat, 18 Aug 2007 02:53:29 +0400

New! AC3Filter tools is a set of command-line utilities for manipulating audio files.

Release notes:

Initial release
Built on AC3Filter 1.46 code base

Adobe Audition plugin 0.1a

valex — Thu, 16 Aug 2007 21:29:02 +0400

New! This plugin allows CoolEdit / Adobe Audition to read AC3 and DTS files and write AC3 files.

Release notes:

Syltran lake (Elbrus region)

Initial release
Built on AC3Filter 1.46 code base
Reads AC3 and DTS files
Writes mono/stereo AC3 files (bitrate ajustable)

AC3Filter 1.46 stable

valex — Thu, 16 Aug 2007 21:15:04 +0400

Release notes:

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)

Ways to Contribute to Open Source Projects Without Coding

valex — Wed, 13 Jun 2007 11:04:03 +0400

Maybe you’ve seen many good Open Source projects that are no longer maintained. One of the many reasons for that may be lack of contribution. In fact, there are many one-man projects out there. Most of any program’s users are just that, users, not developers. Nevertheless, average users still can contribute to Open Source programs to make them better.

Mixing matrix 2: Phase inversion

valex — Sun, 10 Jun 2007 12:50:17 +0400

Mixing matrix article described how matrix mixing works and some channel swapping magic. This article focuses on phase inverting. It describes what is phase inversion, how to test and fix incorrect phase and how to make pseudo-stereo effect from mono track.

Dynamic range compression

valex — Fri, 08 Jun 2007 03:25:06 +0400

This article describes how to watch movies at night and under poor hearing conditions (noisy environment, weak speakers). At the first sight settings for poor hearing conditions and at night must be different. In the first case we need to make sound louder, and at night we should be quiet. Nevertheless, in both cases we need to do the same. Paradox? Not really...

AC3Filter 1.45b

valex — Fri, 08 Jun 2007 00:14:39 +0400

Release notes:

ACM codec is now included into the package
Tab labels are now translatable
All languages available so far integrated
Avoid poEdit '\r' warning when creating a translation file
Warning messages about dangerous options
Loud noise was possible after output format switch or SPDIF state change
Audio skips problem fixed once more

How to cut a part of a file for testing

valex — Tue, 05 Jun 2007 18:09:26 +0400

Remote debugging is very hard task. To track the problem a part of a file with problem is often needed. This guide tells how to cut such part.

AC3Filter 1.40b Language pack

valex — Mon, 04 Jun 2007 23:55:40 +0400

Slovak by Artam
Portuguese (Brazilian) by ReX
Hungarian by Sziládi Zsolt
Chinese (Simplified) by FSYX
Italian by Gioxy
German by Filico
Polish by Łukasz Pasternak
Spanish by Ferny
Indonesian by Nicholas N.E

To use it, Download and upzip it to AC3Filter installation folder.

How to translate AC3Filter

valex — Thu, 31 May 2007 11:21:42 +0400

Translation is easy! This manual describes how to make a new translation of AC3Filter or fix bugs in an existing one with help of poEdit program.

Mixing matrix

valex — Thu, 31 May 2007 02:30:00 +0400

One of the most interesting features of AC3Filter is mixing matrix. With help of mixing matrix filter does downmixing and upmixing. But you can use it in much more ways: reassign channels, invert the phase of incorrectly wired speakers, mix LFE to specific channels, etc.