The USB sound cards are supported and any audio can be encoded to AC3 and transmitted over SPDIF.
The plugin ensures passthrough AC3 and DRS over SPDIF without changes to the external decoder.
Regarding playback, this plugin allows you to watch movies with AC3 and DTS audio tracks, to listen to multi channel AudioCD containing AC3 and DTS, to render WAV files with AC3 and DTS streams (ripped from multi channel AudioCD without performing conversion), and to playback raw AC3 and DTS files using the AC3 filter.
The processing options provided by WinampAC3 are quite diverse:
watching movies under poor hearing conditions, decreasing dynamic range to watch movies at night without bothering your neighbors, applying time shift to audio tracks to synchronize audio with video, up-mixing any audio track up to 6 channels, down-mixing audio tracks to a limited number of channels (depending on your speaker configuration) and adjusting gain of every input or output channel independently to normalize sound.
The time delays for each channel can be adjusted in order to compensate for the different distances to the loudspeakers.
The last version of WinampAC3 was improved with sample rate conversion, with an equalizer, a tray icon and a new DTS passthrough method.
AC3 and DTS files and streams will not represent a problem anymore for those using Winamp if they download and install this free plugin.
This piece of software focuses on both playback and processing and it offers support for SPDIF output.