Advanced audio settings menu, first press Þ to display the Options menu. Then select 
Advanced audio settings.  
 
Advanced audio settings menu for models with DTS TruSurround 
Advanced audio settings menu options – DTS TruSurround 
•  Audio effect – Select from among various preset audio modes to improve 
speech, make music sound its best, boost bass or treble, or simulate a theater. 
Use Reset audio settings, described below, to return the input’s current settings 
to their original values. 
•  DTS TruSurround –Simulates surround sound that otherwise would require 
installation of a surround sound audio system. Sometimes, the effect interferes 
with dialog clarity. Use the Dialog Clarity option to compensate. 
•  Dialog Clarity – Available only when DTS TruSurround is On. Choose among Low, 
Medium, and High settings to improve the clarity of dialog when you are using 
the TruSurround feature. 
•  TruVolume – Minimizes annoying volume fluctuations in programs. 
•  Reset audio settings – Returns DTS TruSurround, Dialog Clarity, and TruVolume 
settings, to their default settings for the selected Audio effect.