AC3Filter is a populer audio filter. AC3Filter - it is DirectShow filter for AC3 decoding to play .AVI with AC3 audio tracks and MPEG2 (DVD). Distributed absolutely for free (FREEWARE, OpenSource).
- 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.