WinampAC3 is a MP3 & Audio software developed by free-codecs. After our trial and test, the software is proved to be official, secure and free. Here is the official description for WinampAC3:
BS Editor: This program is a Winamp 2.x (it was also tested in Winamp 5 and it's working!) input plugin to play .ac3 files. WinampAC3 is based on the same decoder Library used in AC3Filter and it's distributed absolutely for free.
- Full AC3 standard compliance. - S/P DIF passthrough support. - Decode MPEG2 PES streams. - Multichannel output support. - LFE support. - Dynamic Range Compression (DRC) support. - Overflow control and automatic gain control. - Gain levels control. - Bitstream information (channel format, BitRate, sample rate, coupling freq and maximun freq). - Input/output levels. - Matrix mixer with direct control of mixing matrix. - Stereo to multichannel mixing. - DolbySurround/ProLogic/ProLogicII downmixing. - Delays for each channel. - Equalizer. you can free download WinampAC3 1.01a now.