User manual PIONEER SC-LX87-S

[. . . ] 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 · Operating system must be Microsoft® Windows® XP (Service Pack 2) or Windows® 2000. · CPU must be at least Pentium 3 / 300 MHz or AMD K6 / 300 MHz (or equivalent) with at least 128 MB of memory, and your monitor must be able to display a minimum resolution of 800x600. · 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 XP and Windows 2000 are registered trademarks or trademarks of the Microsoft Corporation of the United States and other countries. Main features of the application 1. [. . . ] Each Ch: All the channels are displayed individually. The graph for the listening environment's reverb characteristics (before calibration) is displayed with the "Each Ch" mode, allowing you to check the reverb characteristics for the individual channels. Pair Ch: Composite reverb characteristics for the left and right pairs of the "Front", "Surround" and "Surr Back" channels are displayed. Use the "Pair Ch" mode to display the graphs for the reverb characteristics after calibration. Displays 3D graphs with rotating. a Demo a. To finish, reselect and uncheck the box. Continue 13 Application Operations (Continued) Window Cascade Tile (Reverb display only) Minimize Arrange Cascades files. a Tiles files. a Minimizes the window. Available when two or more files are open. Help Version Info Displays the version of the application. 2 Display item selection tab A graph for the selected item or the MCACC parameter list is displayed. 3 Level [dB] The level axis. 4 Time [msec] The time axis. 5 Channel memo (only available when the channels are displayed on the reverb characteristics graph) Allows you to record a short memo about each channel. 6 Date and time Display the date and time when the measurement data was transferred to the PC. 7 Channel and frequency switch buttons Ch: Selects channel display mode (frequencies are displayed along graph depth axes). Data received at one time is saved in one file. 1 To save measure data, choose "Save" from the "File" menu. If you have data that has already been saved and want to save it under a new name, choose "Save As". 2 Check the save location, assign a file name, then click "Save". The data is saved in a CSV format file (the file extension is ". csv"). When you are finished saving data, you should (using the receiver controls) press "RETURN" to exit the Reverb Output PC screen. This takes the receiver out of transmission standby mode. (See page 70 in the receiver's Operating Instructions. ) Note The CSV format file is often used to transfer data to applications such as databases and spreadsheets. However, the sense of placement and movement of the acoustic image and the unity of the sound from the different speakers is influenced not by the reverberations but by the direct sound from the speakers (including the early reflected sound). In cases like this, you should use Advanced EQ Setup and set the time period to 30 to 50 msec (the blue area in Figure 3). This allows the characteristics of direct sounds to be balanced for each channel, giving an ideal sound field with good acoustic positioning and movement. Figure 3 Level (dB) Time period point to be selected Time (in ms) Front left channel Front right channel Pattern 3: Similar reverb characteristics for high and low frequencies and all channels As shown in Figure 4, when the reverb characteristics for all channels are similar across all frequencies, your sound experience will probably not be adversely affected by reverberation. We recommend calibrating with a time of about 60 to 80 [ms] (green part of Figure 4) specified at Advanced EQ Setup. This produces a total calibration for both direct sounds and reverberations, resulting in an ideal sound field. Figure 4 Level (dB) Time period point to be selected Front left low frequencies Front right low frequencies Front left high frequencies Front right high frequencies Time (in ms) Note · If you are not sure which time period to specify in Advanced EQ Setup, start by trying 30 to 50 msec. If the graphs show an unusual reverb curve for a specific frequency, the cause may be some accidental variation. Instead of selecting 30 to 50 msec, try another time period. · Another good method is to try various time periods in Advanced EQ Setup and select the one which sounds the best. · Time period settings cannot be made on the PC. They can only be made on the on-screen display of the receiver, using the receiver's Advanced EQ Setup function. Continue 20 How to Interpret the Graphs (Continued) Checking steps to improve your room's reverb characteristics The reverb characteristics of your listening room graphs are evident from the graphs. For your reference, the following four examples explain how different types of rooms appear in the graphs. Case 1: Graph rises to right across all frequencies This is probably a room with a good deal of reverberation. [. . . ] Select "Repair", then select "Next". Continue 31 Updating, Deleting and Repairing the Application (Continued) 4 Select "Install". 5 Click "Finish". This completes the repairing of the application. Modifying the application With the application for the SC-LX87-S or SC-LX71, "Modify" cannot be used. 32 Troubleshooting As you use the Advanced MCACC application, errors can occur for a variety of reasons, such as incompatibilities with other applications and the current configuration of your PC. If an error occurs, refer to the troubleshooting points below. If the trouble cannot be rectified even after checking the points listed below, ask the Pioneer Service Center specified on your warranty card. The application is unstable, or does not work normally Cause 1: If your PC does not meet the requirements for using this application, the application can be unstable, very slow, or freeze up. Check to be sure that your PC meets the requirements for using this application. (See page 2. ) You cannot use this application unless your PC meets all of the requirements. Cause 2: Even if the required conditions for the computer environment are met, if many files are opened in the application and all are displayed with the MCACC Para option, an error message may appear due to lack of computer memory. If the error below should occur, either close some of the opened files, or quit the application itself then restart it. [. . . ]