Bedienungsanleitung Pioneer SC-LX58-S (Seite 66 von 140) (Englisch)

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Listening to your system

Better sound using Phase Control and Full Band Phase Control

This receiver is equipped with the two types of functions that correct phase distortion and group delay: Phase

Control and Full Band Phase Control. Activating Full Band Phase Control is strongly recommended because it

also involves the effects of Phase Control.

The Full Band Phase Control feature calibrates the frequency-phase characteristics of the speakers connected.

Standard speakers designed exclusively for audio use generally reproduce sound with the divided frequency

bands output from a speaker system consisting of multiple speakers (in case of typical 3-way speakers, for

instance, the tweeter, the squawker (midrange), and the woofer output sound in the high-, middle-, and low-

frequency ranges, respectively). Though these speakers are designed to flatten the frequency-amplitude charac-

teristics across wide ranges, there are cases where the group delay characteristics are not effectively flattened.

This phase distortion of the speakers subsequently causes group delay (the delay of low-frequency sound against

high-frequency sound) during audio signal playback.

This receiver analyzes the frequency-phase characteristics of the speakers by measuring test signals output from

the speakers with the supplied microphone, therefore flattening the analyzed frequency-phase characteristics

during audio signal playback - the same correction is made for a pair of left and right speakers. This correction

minimizes group delay between the ranges of a speaker and improves the frequency-phase characteristics across

all ranges.

Furthermore, the enhanced frequency-phase characteristics between channels ensure better surround sound

integration for multichannel setting.

! Upon shipment from the factory, the Phase Control function is in on status. If you perform Full Auto MCACC

(page 48 ) or Full Band Phase Ctrl of Auto MCACC (page 94 ), the Full Band Phase Control function is

automatically turned on after measurement. By turning Full Band Phase Control on, the Phase Control func-

tion is turned on as well. Therefore, we recommend that usually the function be used with Full Band Phase

Control on.

1 Press MAIN RECEIVER to switch the remote control to the receiver operation mode, and

then press AUDIO P..

2 Use i/j to select ‘PHASE’.

3 Use k/l to select ‘FULLBND’.

Both the Phase Control and Full Band Phase Control functions are switched on. The FULL BAND and indica-

tor, on the front panel lights.

Notes

! The original characteristics of group delay of the speakers calibrated and the targeted characteristics after

correction can be displayed graphically in the GUI screen (see Checking MCACC Data on page 98 ). Also, by

transferring the measurement data to the computer using the CD-ROM, the original characteristics of group

delay of the speakers calibrated and the corrected characteristics of group delay can be displayed in 3-dimen-

sion on your PC. For details, refer to the operating instructions for the MCACC PRO PC Display Application

Software included on the CD-ROM.

! Depending on the input signal and listening mode, it may not be possible to set the Full Band Phase Ctrl

mode to ON.

! The Full Band Phase Ctrl mode cannot be set to ON in the following cases:

— When headphones are plugged in.

— When the PURE DIRECT mode is switched on.

—

When the HDMI audio output parameter is set to THROUGH in Setting the Setting the Audio options on page 78 .

! The Full Band Phase Control function does not work for Dolby Enabled Speakers since they are full-range

speakers.

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