Trifield LR→LRC Decoder DSP
Component for foobar2000 v1.4 alpha and newer.
foobar2000 v2.0 version available here.
foobar2000 v1.1 version available here.
| Version: | 1.1.2 | 
| Released: | 2018-08-27 15:26 | 
| Size: | 21.3 KB | 
| License: | GNU Affero General Public License | 
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SourcesDescription
An implementation of Michael Gerzon's Trifield decoder.
The Trifield process is a form of audio rendering in which a conventional two-channel stereo signal is decoded (using Ambisonic principles) to an additional number of loudspeakers, typically three in the form of a Left-Center-Right front stage. The technique provides significant improvement to image stability, especially when the listener is moving or off-axis. It also addresses the problem in conventional stereo, where center images are recessed and less distinct due to the comb filtering arising from two sound sources emitting correlated signals.
Changes
| 1.1.2 (2018-08-27): | Fixed left and right channels being reversed | 
| 1.1.1 (2018-01-06): | No changes in functionality. Dynamic C runtime version for foobar2000 v1.4 | 
| 1.1 (2017-06-07): | Added more information to the about dialog. Lowered minimum crossover frequency to 350 Hz. Removed 192 kHz upper limit for sampling frequency | 
| 1.0 (2017-06-02): | Initial version |