Pioneer SC-LX82 User Manual

Name: Pioneer SC-LX82
Brand: Pioneer
SKU: 1673278
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Operating Instructions

– Advanced MCACC PC Display Application Software –

audio/video multi-channel receiver

SC-LX82

SC-LX72

About this manual

These are the Operating Instructions for an application which displays on your computer screen the

listening room reverberation frequency characteristics, the speakers’ group delay characteristics and the

MCACC parameters measured by the Advanced MCACC function of your SC-LX82 or SC-LX72.

It explains everything you need to know to use the application, from installation to troubleshooting. You will

need to operate the receiver to use this application, so please refer also to the Operating Instructions

supplied with the receiver.

About the Advanced MCACC Application

The functions of the Advanced MCACC application are used with the same purpose as the “Reverb View”

and “Group Delay” functions of the receiver itself (see pages 113 and 117 of the receiver’s Operating

Instructions), namely to display the reverberation characteristics of the listening environment and the group

delay characteristics of the speakers. Using a computer provides cleaner, more easily readable graphs. The

application can also be used to display the measurement values stored in the receiver’s MCACC memory.

Requirements for using the application on your PC

• The computer must be a PC functioning with one of the following operating systems: Microsoft

Windows

Vista Home Basic/Home Premium/Ultimate SP1, Windows

XP Professional/Home Edition

SP3 or Windows

2000 Professional SP4.

• The monitor must have a display resolution of 800 x 600 dots (SVGA) or greater.

• An RS-232C port connector is necessary for graphical output. Refer to the PC’s operating instructions

and/or the PC manufacturer for more information on making the proper port settings.

Microsoft

, Windows

Vista, Windows

XP and Windows

2000 are either registered trademarks or trademarks of

Microsoft Corporation in the United States and/or other countries.

Main features of the application

1. Displays 3D graphs of the reverberation frequency characteristics of your room. You can choose to

see these measurements both with and without the equalization performed by this receiver (before

and after calibration).

2. Allows you to display 3D graphics of the group delay characteristics of the different speakers. (The

values before and after calibration can be displayed.)

3. Allows you to display a list of the Advanced MCACC parameters (the results of measurements).

4. Allows you to view graphs in a number of different formats.

5. Allows you to save the various measured data on the computer.

6. Allows you to make memos about the conditions in your room when you made the measurements,

etc.

7. Allows you to print the various graphs and the MCACC measurement values.

Continue

About the Advanced MCACC Application (Continued)

Things you can accomplish with this application

1. Advanced EQ Setup, which you can do with the receiver (see page 113 of the receiver’s Operating

Instructions), allows you to choose the optimum time period for auto EQ setup. You can use this

application’s reverberation characteristics (Reverb) as a guide in choosing the best time period for

your room.

For details, see Deciding the time period for Advanced EQ Setup calibration

(page 19).

2. Skewed reverb frequency characteristics in your listening room can prevent you from enjoying an

accurate sound field. The graphs displayed by this application are a powerful tool because they

allow you to check these reverb frequency characteristics at a glance. You can also check the

effectiveness of steps that you take to improve the acoustics of your listening room, for example,

installing sound absorbent material.

For details, see Checking steps to improve your room’s reverb characteristics

(page 21).

3. The reverb characteristics after calibration can be displayed. This lets you to check the EQ effects of

the Advanced MCACC measurements you have made.

For details, see About the display of the reverb characteristics graphs before and after calibration

(page 23).

4. The Group Delay graphs allow you to check the group delay characteristics before and after

calibration.

For details, see Reading the group delay characteristics graph (Group Delay)

(page 25).

5. The MCACC parameter display (Parameters) allows you to display on the computer all the

parameters (measurement values) stored in the receiver’s MCACC memories.

For details, see Display of the MCACC parameters (page 26).

Installing the Application

Install this application on your PC by using the downloaded installer.

You will find the installer in the folder that you specified when you downloaded the application.

If a previous version of the Advanced MCACC application (“Ver. 1.1”, “Ver. 1.4”, “Ver. 2.0” or “Ver. 2.1”) is

installed on your computer, please update the application. For details, see Updating the application

(page 27).

1 Double click the “PioneerAdvancedMCACC_e_ver_*_*.exe” file .

The number after “ver” in the filename is the version number of the installer.

Depending on the current configuration of your PC, the InstallShield Wizard can take some time to appear.

2 Click “Next”.

3 (If you agree to the contents of the License Agreement), select “I accept the

terms in the license agreement”, then select “Next”.

The destination selection screen of the installer appears.

Troubleshooting

If an error occurs when you double click and you are unable to proceed with the installation.

Continue

Installing the Application (Continued)

4 Input the Customer Information, then select “Next”.

5 Click “Next”.

The application is installed in the folder indicated at “Destination Folder”. The destination folder can be

changed by clicking “Change...”.

Continue

Installing the Application (Continued)

6 Choose “Install”.

A shortcut icon is created on the desktop.

7 Click “Finish”.

The installation is complete.

Operations on the Receiver and Cable Connections

Connect the receiver and the computer in order to display on the computer the various data measured on

the receiver itself.

1 Connect the receiver to your PC with an RS-232C cable.

Before making or changing connections, switch off the power and disconnect the power cord from

the power outlet. Plugging in components should be the last connection you make with your

system.

• When using a notebook computer or other computer without an RS-232C terminal, this application can

be used by connecting the receiver via USB using a commercially available USB-RS-232C conversion

cable (USB-Serial cable). When using USB connections, be sure to select the proper COM port

number for data transmission (see page 9).

• The type of cable to use is a female-female cross cable. Different manufacturers use different names to

refer to this type of cable. Sometimes it is called an “interlink” cable, and sometimes it is called a

“reverse” cable.

Pin-out diagram of RS-232C cable to connect receiver and PC

Caution

Note



STANDBY/ON

INPUT

SELECTOR

PHASE

CONTROL

ADVANCED

MCACC

PQLS HDMI

MASTER

VOLUME

RS-232C

SC-LX82/SC-LX72

Female-female

cross cable

Dsub 9-pin female

Continue

Operations on the Receiver and Cable Connections (Continued)

2 Perform the “Full Auto MCACC” operation on the receiver. (See page 45 of the

receiver’s Operating Instructions.)

The measurements here are not required if the “Full Auto MCACC” operation has already been

performed before connecting the RS-232C cable. Proceed to step 3.

3 Select “Output PC” from “MCACC Data Check”. (See page 117 of the receiver’s

Operating Instructions.)

The message “Start the MCACC application on your PC” appears on the monitor screen and the receiver

enters the transmission standby mode. It is ready to send data to your PC.

This completes the preparations for sending the measurement data to your PC.

(To send the data, proceed to the next section Application Operations.)

• The graphs for both before calibration (“Before”) and after calibration (“After”) can be displayed on the

screen displaying the reverberation characteristics graphs after Full Auto MCACC measurements

(“Reverb”), but note that the graph displayed for the characteristics after calibration is a prediction of

the reverberation characteristics after Full Auto MCACC with the EQ Type : SYMMETRY.

For details, see About the display of the reverb characteristics graphs before and after calibration

(page 23).

If you want to check the graph of the actually measured reverberation characteristics after MCACC

calibration (not the prediction), measure the reverb characteristics again after calibration.

For details, see Displaying the reverb characteristics after EQ calibration (actually measured values)

(page 24).

Note

a. Speaker Setting

b. Channel Level

c. Speaker Distance

2.MCACC Data Check

d. Standing Wave

e. Acoustic Cal EQ

f. Group Delay

g. Output PC

A/V RECEIVER

Exit Return

Start the MCACC application on your PC.

2g.Output PC

Exit Cancel

A/V RECEIVER

Applications Operations

This section explains operations that you do in the application, from receiving measurement data to

displaying graphs and saving the data.

Receiving measurement data

1 Double click the application shortcut icon on the PC desktop.

You can also start the application by selecting “Program”  “Pioneer Corporation”  “Advanced

MCACC” from the “Start” menu.

The application starts.

2 Select “Receive” under “File” on the menu bar.

3 Select the number of the COM port to which the RS-232C cable is connected.

A COM port between “COM1” and “COM8” can be selected. If you do not know which COM port

number to select, try selecting each port in turn, beginning with “COM1”.

For more information about COM port settings, either refer to the operating instructions of your PC or

contact your PC’s manufacturer.

Note

COM port selection box

Troubleshooting

If an error occurs when you select “Receive” and no data is sent.

Continue

Application Operations (Continued)

4 Select the type of data to be received, then select “OK”.

Select “Reverb” to receive the data for the room’s reverb characteristics, “Group Delay” to receive the

data for the speakers’ group delay characteristics and “MCACC Parameters” to receive the data for the

various MCACC parameters (measurements results).

Data transmission starts.

When reception finishes the received data appear.

• The data used to display the reverberation characteristics graph (Reverb), the group delay characteristics

graph (Group Delay) and the MCACC parameters are not deleted even when the receiver’s power is

turned off. However, for the data used to display the reverberation characteristics graph (Reverb) and the

group delay characteristics graph the data stored in the receiver is overwritten when the reverberations

are measured again. If you wish to display graphs of multiple sets of data, use the data transfer function to

store the data on a computer each time you measure the reverberations.

• In order to avoid malfunction, after the completion of the data transmission, unplug the RS-232C cable

connecting your PC and the receiver.

Note

Type of data

Continue

Application Operations (Continued)

Graph and parameter displays (names and functions of parts)

When measurement data is received, the graphs and parameters display window appears. The display

window is divided into two items, “Reverb”, “Group Delay” and “Parameters”. Select the desired tab to

switch to that window and display the respective details.

Reverb (graph of the room’s reverberation frequency characteristics)

The display can be switched between the reverb characteristics graphs before and after calibration. You

can switch the display between individual displays for the different channels/frequencies or a list display of

all the channels/frequencies (ALL). Below we explain the different parts of the individual displays and the

ALL display, using the channel display as an example.

Individual display (Example: Front channel)

ALL display

Continue

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