Pioneer SC-07, SC-05 manual Using Acoustic Calibration EQ Professional, The Advanced MCACC menu

07The Advanced MCACC menu

The graph below shows the difference between conventional acoustic calibration and professional calibration (the gray circle indicates the point where the microphone captures sound during frequency analysis).

Level
		Test tone
Acoustic Cal. EQ Pro.	Conventional MCACC
calibration range	EQ calibration range
80	160	Time
		(in msec)

If your room isn’t affected by the factors above, it is often not necessary to make a 30~50ms setting. Later time settings may provide a more detailed sound experience with your speaker system. It is best to try and see what works best for your particular room.

Note that changing the room (for example, moving furniture or paintings) will affect the calibration results. In such cases, you should recalibrate your system.

Using Acoustic Calibration EQ Professional

1 Select ‘EQ Professional’, then press ENTER.

As soon as audio is output from your speaker system, it is influenced by room characteristics, such as walls, furniture, and the dimensions of the room. The sooner the frequency analysis, the less it is influenced by the room. We recommend an earlier time setting of 30~50ms to compensate for two major factors that will influence the sound of most rooms:

•Reverberance of high vs. low frequencies – Depending on your room, you may find that lower frequencies seem overly reverberant compared to higher frequencies (i.e. your room sounds ‘boomy’). This may result in a skewed frequency analysis if the measurement is done too late.

Level		Low
		frequencies
		High
		frequencies
	Acoustic Cal. EQ Pro.	ConventionalMCACC
	calibration range
		EQ calibration range
			Time

80160 (in msec)

•Reverb characteristics for different channels – Reverb characteristics can be somewhat different for each channel. Since this difference increases as the sound is influenced by the various room characteristics, it is often better to capture a frequency analysis early on for smoother mixing of channel frequencies/sounds.

Level			Left
			surround
			Right
			surround
	Acoustic Cal. EQ Pro.	Conventional MCACC
	calibration range
		EQ calibration range
				Time
80		160		(in msec)

1c.Manual MCACC	1c5.EQ Professional
A/V RECEIVER	A/V RECEIVER
1. Fine Channel Level
	a. Reverb Measurement
2. Fine SP Distance	b. Reverb View
3. Standing Wave	c. Advanced EQ Setup
4. EQ Adjust
5. EQ Professional

Exit Return Exit Return

2Select an option and press ENTER.

•Reverb Measurement – Use this to measure the reverb characteristics of your room (for graphical output using a PC, see Connecting a PC for Advanced MCACC output on page 72 to connect an RS-232C cable before selecting this option).

•Reverb View – You can check the reverb measurements made for specified frequency ranges in each channel.1

•Advanced EQ Setup – Use this to select the time period that will be used for frequency adjustment and calibration, based on the reverb measurement of your listening area. Note that customizing system calibration using this setup will alter the settings you made in Automatically setting up for surround sound (MCACC & Full Band Phase Control) on page 10 or Automatic MCACC (Expert) on page 44 and is not necessary if you’re satisfied with these settings.

3If you selected ‘Reverb Measurement’, select EQ ON or OFF, and then START.

	1c5a.Reverb Measurement
	A/V RECEIVER
MCACC	: M1.MEMORY 1
Reverb Measure with : EQ OFF
	START
Exit	Cancel

Note

1 If the Reverb View procedure is performed after the Automatically setting up for surround sound (MCACC & Full Band Phase Control) on page 10 or Reverb Measurement operation, depending on the standing wave control setting, differences may appear on the reverb graph. With the Auto MCACC function, the reverberations are measured with the standing waves controlled, so the reverb characteristics graph shows the characteristics with the effect of the standing waves eliminated. By contrast, the Reverb Measurement function measures the reverberations without controlling the standing waves, so the graph indicates the reverb characteristics including the effect of the standing waves. If you wish to check the reverb characteristics of the room itself (with the standing waves as such), we recommend using the Reverb Measurement function.

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