FreeSurround Decoder DSP

Component for foobar2000 v1.5 and newer.

Version:	0.1.1
Released:	2025-09-25 10:22
Size:	278.7 KB
License:	GNU General Public License

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foo_dsp_fsurround

Sources

Description

FreeSurround Decoder decodes surround information from stereo music, and produces multichannel output from it.
The decoder should be compatible with the following coding schemes:
- Dolby Surround
- Dolby ProLogic
- Dolby ProLogic II
- SRS CircleSurround
- SRS CircleSurround II
- DTS Neo:6
- Lexicon Logic7
- Stereo Quadrophonic (SQ)
- Quadrophonic Stereo (QS)
SQ is decoded with mono surrounds (i.e. like ProLogic I), due to a defective coding specification.
QS requires the front stereo separation to be set to 1.5, or else the sound field will be too narrow.

Additional info

• Forum thread for the original implementation

Changes

0.1.1 (2025-09-25):	Slightly tweaked configuration dialog and about box. Added licenses to the component archive as required. Updated KISS FFT to latest version.
0.1 (2025-09-24):	Initial remake.