Yamaha DVX-S150 Owner's Manual - Page 26

BASIC OPERATION Auto Speaker Setup (YPAO) Auto Speaker Setup (YPAO) With the YAMAHA Parametric Room Acoustic Optimizer (YPAO) feature, you can avoid troublesome speaker setup and achieve highly accurate sound adjustments. The supplied optimizer microphone collects and analyzes the sound that the speakers produce in your actual listening environment. We recommend that you perform YPAO each time when you change the speaker layout or listening position. To configure the speaker settings manually, refer to "Adjusting the Speaker Balance During Playback" (page 64). YPAO performs the following adjustments: YPAO performs the following checks and makes appropriate adjustments to give you the best possible sound from your system. • Wiring/Polarity Checks which speakers are connected and the polarity of each speaker. Also checks and adjusts the sound level (volume) of each speaker so that the sound level of each speaker is the same when heard from the listening position. • Distance/Phase Checks the distance of each speaker from the listening position and adjusts the delay of each channel so that the sound from each speaker reaches the listening position at the same time. Also checks the phase of each speaker. • Size Checks the speakers frequency response and sets the crossover/high cut frequency for the subwoofer to improve the sound relationship between the speakers and the subwoofer. y The CinemaStation stores speaker settings configured by YPAO and manual setup individually. You can switch between them by turning on/off the YPAO mode (page 23). Notes 2 Connect the supplied optimizer microphone to the YPAO MIC jack on the CinemaStation. Optimizer microphone 3 Place the optimizer microphone on a flat level surface with the omni-directional microphone head upward, at your normal listening position. If possible, use a stand such as a tripod to affix the optimizer microphone at the same height as your ears would be when you are seated in your listening position. • Since loud test tones will be output during the setup procedure, be sure to keep small children out of the room. • For the best results, make sure the room is as quiet as possible during the setup procedure. If there is too much noise, the results may not be satisfactory. • Disconnect the headphones from the SILENT CINEMA jack on the CinemaStation before starting the setup procedure. • Be sure to disconnect the optimizer microphone when you have completed the setup procedure. • The optimizer microphone is sensitive to heat. Do not place it on top of the CinemaStation or in direct sunlight. 1 Make sure the CinemaStation and subwoofer are turned off (in standby mode). Optimizer microphone position y If your subwoofer has adjustable volume and crossover/high cut frequency controls, set the volume low but not minimum (as shown below) and set the crossover/high cut frequency to the maximum. VOLUME CROSSOVER/ HIGH CUT MIN MAX MIN MAX Subwoofer 21