Pioneer SC-82 User's Guide download pdf (Page 13)

Introduction MCACC MCACC ProThe Essence of MCACC Advanced MCACC Feature Comparison Technical Details

MCACC Reference Guide

3D Time-Axis Compensation

As shown on the 3D graphs on right, the frequency characteristics

change with the passing of time. So if compensation is made on the

same point of the time-axis, there will be some difference due to

reverberation. To solve this problem, Advanced MCACC adopts the 3D

Time-Axis Compensation which takes into account this change along

the time-axis. You can measure the listening environment before

correcting the sound field, and make compensations matched to the

condition. The adjustment can be done in 0 to 160 msec range

including the direct sound area, allowing compensation with

emphasis on direct sound. The adjustment point can be controlled

manually for minute adjustments suited to the listening environment.

The measured results can be displayed in a rotatable 3D graph on your

personal computer or iPad via the AVNavigator or iControlAV5 app.

Anyone can easily use the professional features such as display

before/after calibration comparison, or check if each frequency

characteristic is aligned at the setup point on the time-axis.

Auto Phase Control Plus

Multi-channel sounds on Blu-ray Discs, DVDs, or 5.1ch WAV/FLAC are

sometimes recorded with LFE channel delay (about max. 16 msec)

caused by the LPF (low-pass filter) when the discrete sounds are

packaged. This delay in the low frequencies affects not only the bass,

but also the main channel playback, dulling the rhythm and sound.

During playback, Phase Control Plus technology automatically adjusts

and compensates the phase lag (group delay) included in the sound

source, from 0 to 16 msec in 1 msec increments. In addition to solving

the phase lag (group delay) in audio devices such as AV receivers and

speakers, the phase shift sometimes included in discs or broadcasts

can also be adjusted, allowing precise control of every phase, from

audio source to output. With the synergy effect of the original Phase

Control compensation, all sounds are aligned, providing better

balance for the overall reproduced sound, exceptionally powerful and

dynamic bass, and clear high frequencies.

Advanced MCACC Reverberation Measurement Result

Before Calibration

After Calibration

Effect of Auto Phase Control Plus (data comparison)

Original disc playback

Delay setting: 0 msec

Superior sound provided by compensating the lag in the subwoofer channel on the disc.

Playback with Auto Phase Control Plus

Delay setting: 9 msec TimeTime

Level

Front L

LFE

1 2 ... 8 9 10 11 12 13 14 15 16 17

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Pioneer SC-82 User's Guide Page 13

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