With an appropriate sound decoder and speakers, RealPlayer can reproduce "surround sound" stereo from either local sources (CD/DVD) or from streaming audio. If you do not have a surround sound decoder, the additional sound signals are skipped and the track plays back as standard stereo. If the clip you are playing is not encoded for surround sound, RealPlayer will reproduce only standard stereo or mono audio.
To play back surround sound correctly, connect your sound card's stereo output to a surround-enabled receiver and switch the receiver to surround decoding.
To obtain the best surround sound, a surround-enabled
receiver requires an unmodified signal so it can properly decode the surround
sound.
In addition, open your sound card's "Properties" dialog (from the Windows System Properties) and make sure that no "wide stereo" (such as "QSound") or similar Advanced Properties options are selected.
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