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Written by Administrator
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Sunday, 04 December 2005 |
Aud-X is the kind of a break-through in surround sound that was once made for video by Divx/Xvid. We bring missing part in the PC codecs puzzle, and we do it for free. Please donate us and we promise to develop this technology and keep it free. We need cash for the technology development, studio tests and to keep this www service online
Aud-X 5.1 surround codec:  [2.38 MB] FREE
Aud-X 1.24 is available. All changes since 1.0 release:
[1.24] - MP3 48 kHz problems fixed
[1.24] - PseudoSurround artifacts for noisy signals eliminated
[1.23] - Memory leakage problems of the Virtual Surround (VS) module fixed
[1.23] - AC3 5.1 decoding and conversion to the VS stereo problems fixed
[1.23] - Code optimizations of the VS module
[1.23] - DolbyProLogicII decoder module separation filter quality adjustments
[1.23] - Code optimizations of the PseudoSurround module
[1.22] - Sound quality improvements of the DolbyProLogicII decoder
[1.22] - New Virtual Surround (VS) DSP algorithm which allows for recreating surround panorama on stereo headphones. The algorithm is based on modified HRTF (Head Related Transform Function) filters with linear error correction adjustements. In addition, it consists of DSP routines emulating acoustic wave propagation in a midium size room (20 square meters) equipped with 5.1 speakers set. The VS algorithm can be configured to emulate surround panorama based on Aud-X sounds, but also on AC3 5.1, or can be applied to any other 5.1 source when the DirectShow filter is configured as a postprocessing unit.
[1.21] - Compatibility bugs related to Windows Media Player Classic fixed.
[1.21] - Compatibility bugs related to Nero Recode fixed.
[1.21] - Compatibility bugs related too Ogg Vorbis DirectShow filter fixed.
[1.21] - Other minor DirectShow related problems fixed.
[1.2] - DolbyProLogicII DSP decoder. This is the only free and truly working DolbyProLogicII decoding algorithm (with proper front vs. rear channels separation).
[1.2] - New set of DirectShow configuration options, which allow for easy disabling/enabling of the Aud-X DShow filter, without the need of reinstallation.
[1.2] – Direct AC3 to Aud-X transcoding via the executable front-end.
[1.2] – Memory leakage problems fixed.
[1.11] - Fixed problems with FFDshow compatibility for 48 kHz mp3s.
[1.11] - Ampliutude autonormalization (causing problems) removed.
[1.1] - Now Aud-X HGHQ option is mp3 stereo Dolby Pro Logic II backwards compatible. Thus this option is meant for external DVD players and home theatre systems. When reproduced on a PC with Aud-X codec, similar to AC3 quality is achieved.
[1.1] - Stereo output of Aud-X DirectShow decoder is DPLII compatible.
[1.01] - Aud-X DShow decoder does not block access to FFDShow Audio any more. Standard mp3 tracks are now decoded with orginally installed mp3 decoder (eg. FFDShow Audio) and next the sound is passed to Aud-X for pseudosurround or just playback. This way users do not loose access to their favorite configuration pannels provided by their previous mp3 decoders.
[1.01] - Aud-X DShow decoder does not block access to AC3 Decoder. Now both work together smoothly and you can access features in AC3 Decorer and Aud-X at the same time.
[1.01] - Aud-X Decoder is used alone only for Aud-X encoded surround tracks. | 
Donation e-mail
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Go multichannel!
Aud-X is Softpedia certified product. It is free of spyware and viruses. See the certificate.
VirtualDubMod Surround 1.6.0.0 : [2.3 MB] FREE
VirtualDubMod is a project that was born when suddenly a lot of modifications to the original VirtualDub by Avery Lee sprung up, mainly on the Doom9 forums. Some people got tired of needing several diffrent modified VirtualDub executables, so the idea arose to put them all together into a single app, VirtualDubMod. The latest release of VDM allows for using ACM surround encoders, including the newest, efficient MP3 5.1 format [Aud-X].
[VitrualDubMod Surround 1.6.0.0 Change Log]
- Fixed: Enabled 6chnls when for 6chnls input files and no channels change in conversion dialog is selected
- Fixed: Presentation of default bits per sample when no change in conversion dialog is selected
- Fixed: Setting bits per sample in case of non-WAVE_FORMAT_PCM input and change of channels in conversion dialog selected.
Aud-X DVD backup guide [for beginers] - PDF
Simplified Aud-X DVD backup guide [experienced users] - PDF
Aud-X Help - PDF
Aud-X White paper [technology overview and testing] - PDF
AVI Surround Guide - How to convert any existing 5.1 sound into Aud-X - PDF
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Last Updated ( Tuesday, 21 August 2007 )
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