The filter is able to decode AC-3 streams mixdown from 5.1 to 2 channels (Dolby Surround and Stereo), and it supports a sampling rate of 32, 44.1 and 48 kHz.
Another format supported by Moonlight Odio Dekoda is MPEG-1 and MPEG-2, to Lower Sampling Frequencies. Support for Layer II and Layer III is completely reliable and implemented.
Moonlight Odio Dekoda can automatically detect the type of audio stream and change the format from AC-3 to MPEG Audio and the other way around, even during playback. The filter can switch between various MPEG encoding modes automatically.
It is also good to know that the Moonlight Odio Dekoda filter provides support for Quadro & 5.1 output, along with S/PDIF. A few editing options are available, and users can change the resolution of the output audio stream. Nevertheless, this tool is recommended to advanced users, who are more than just familiar with audio codecs settings.
Moonlight Odio Dekoda has not been updated anymore since 2004, and its last version was 1.5. Some of the improvements made to the final releases are adding support for S/PDIF output, for Layer I and LPCM, fixing some bugs and introducing dithering for a better sound quality.
Moonlight Odio Dekoda offers full support for the most common MPEG formats and for LPCM streams, but since it has been discontinued it may be obsolete for most users.
Moreover, the application supports MPEG-2 extensions to lower sampling frequencies, including the unofficial MPEG-2.5 format and it decodes MPEG audio streams to 8/16/24 bits.