signal may actually be a combination of left and right virtual images re mixing stages 418 only one shown recombine the up mixed component signals to generate the fl and fr output signals for delivery to the front fixed speakers and a binaural mixing stage 420 combines the binaural virtual image signals to generate the two headrest output channels hol and hor the same process is used to generate output signals for the passenger headrest and any additional headrest or other near field binaural speaker arrays and additional re mixing stages are used to generate output signals for any additional fixed speakers various topologies of when component signals are combined and when they are converted into binaural signals are possible and may be selected based on the processing capabilities of the system used to implement the filters or on the processes used to define the tuning of the vehicle for example the patent application ser no 13 888927 mentioned above describes the signal flows within the near field mixing stage 420 and peripheral speaker re mixing stage 418 another particular feature that can be provided with the system described above is a replacement for the traditional u201c fader u201d control in typical car audio systems with a set of stereo speakers in the front and another set of stereo speakers in the rear playing a scaled version of the same signal a fader control adjusts the balance of.