AC3Filter - AC3 音訊編碼 DirectShow 過濾器，可以播放 .AVI 的 AC3 音軌及 MPEG2 (DVD).
- 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.