138Before adjusting sound qualityHow to operate the unit with an optional 5.1 ch decoder/AV matrix unit connectedThe parametric equalizer, time alignment and crossover settings can be adjusted using thisunit, or through the E-iSERV website.About the automatic parametric equalizerThis function can be used to automatically correct distortion in frequency characteristics(peaks and dips) based on the results of measuring the frequency characteristics inside thevehicle.Automatic parametric equalizer correction is carried out in the following steps.About E-iSERV sound effect customizationsSpeaker adjustment(Refer to "Setting/Adjusting the speakers" on page 153.)Frequency characteristics measurementSaving sound dataAfter measuring frequency characteristics, sound data will bewritten to a “Memory Stick Duo” automatically.(Refer to "Measuring/Displaying frequency characteristics" onpage 144.)Accessing the E-iSERV websiteAccess the following URL: http://www.e-iserv.jpAutomatic parametric equalizer adjustmentFollow the instructions given on the website.Correction data downloadingFollow the instructions given on the website.Correction data reading(Refer to "Importing sound data" on page 164.)
