Файл: Eventide_H8000FW_UM.pdf

Graphics and Curves

Several programs use an interface reminiscent of an analog graphic equalizer. Two parameters are used: an x value and a y value. The x value is the horizontal position of the currently selected

graphical point, and the y value is the vertical position of the currently selected graphical point. In our example to the right, the x value is 12500 Hz, and the y value is 12.6 dB. With the cursor in the y field (as shown above), the LEFT and RIGHT CURSOR keys change the x value, while the KNOB and NUMERIC KEYPAD change the y value. With the cursor in the x field, the LEFT and RIGHT CURSOR keys, the KNOB, and the NUMERIC KEYPAD all change the x value. Use the UP and DOWN CURSOR keys to move between the graphic interface and other parameters on the screen.

For example, pressing the LEFT CURSOR key several times on the above screen would change the x value and result in the screen to the right.

Spinning the KNOB on the above screen would change the y value and result in the screen to the right.

Pressing the DOWN CURSOR key on the screen above would move the cursor from the graphic interface to the Mast parameter.

"Curve" modules behave just like "graphics," but their function is a little different.

Here we have loaded the program "Band Distort" from the "Inst - Distortion" bank. On the curves menu page in the PARAMETER area, we find two "curves." Think of the audio

signal being processed by this program as ranging in amplitude from -1 to 1. The "curve" sets up an arbitrary relationship between the input amplitude and the output amplitude. The x value is the input amplitude, and the y value is the corresponding output amplitude. In the example above, an input amplitude of -1.0 results in an output amplitude of - 0.480. By making the input amplitude slightly different from the output amplitude, you can obtain a subtle distortion.

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We could get a little wackier. How about making an input amplitude of 0.667 result in an output amplitude of -0.5? No sweat. By making the input amplitude radically different

from the output amplitude, you can obtain a "garbage compactor" distortion.

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There is one difference between saving a Setup and saving a Program. It is possible to choose whether, when the setup is reloaded, it will automatically load the programs that were

loaded when it was saved. This brings the machine state as close as possible to that when it was saved. To do this, set with programs to yes.

A few things to be aware of:

The programs are not saved as part of the setup, so they must still exist on the machine.

The current routing is always saved as part of the setup.

After loading a setup, a small number of non-critical settings, such as screen brightness, will not be restored until the system is restarted.

Miscellaneous Setup Options

This menu contains a number of assorted setup options that are unrelated to the other pages.

Key hold is the time for which a key must be held down to trigger Key Hold functions, such as:

Routing Storage on page 14

Setup storage on page 15

Remote Controlling Parameters on page 111

Expert mode allows more or less information to be displayed on certain programs, as well has hiding some warning messages, depending on its setting. For more information, see page 42.

wheel speed this controls how "quickly" the wheel changes parameters. High values result in quick changes; low values in slow changes - 100% is the normal setting.

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A p p e n d i x A - U t i l i t i e s

Transmitting and receiving Data

Setting Up the Serial Port

The serial port can be used to transmit data between the H8000FW and a computer. It is an IBM PC type RS232 connector, which looks like a modem or printer to a connected computer.

You can set up the serial port’s parameters on the "third" midi menu page in the SETUP area. Repeatedly press the midi SOFT KEY until you see the menu page shown to the right.

The first parameter, serial, determines whether the serial port is enabled or disabled. If set to disabled, messages will neither be sent out the serial port nor accepted at the serial port. The second parameter, baud rate, determines the speed at which messages will be sent out the serial port and the speed at which the H8000FW expects to receive messages at the serial port. Similarly, data bits, stop bits, and parity all describe aspects of the messages sent out the serial port and aspects of the messages that the H8000FW expects to receive at the serial port.

For things to work properly, these last four parameters must be set to the same values on both the H8000FW and the machine connected to the serial port. Higher baud rates result in faster transmission times, but most machines have a ceiling above which errors occur. So, set the baud rate to the highest value you can on both the H8000FW and the machine connected to its serial port that results in error-free transmissions.

The data bits are normally set at 8, the stop bits are normally set at 2, and the parity is normally set at none. You should only need to stray from these values if the device the H8000FW is communicating with is constrained to some other values. If that is the case, change the values on the H8000FW to match the other device.

To aid in troubleshooting, the BUSY LED will illuminate when data is transferred at the serial port, provided no Memory Card is in place. If the serial port is "enabled," messages sent out the MIDI Out port are also sent out the serial port. Note: If both the serial port is "enabled" and MIDI is "enabled," a command received over either the serial port or the MIDI In port causes the port not receiving the command to be ignored until the command is complete.

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The pin-out for the serial port is:

For most applications, only pins 2, 3, and 5 need to be connected.

Dumping Data and Receiving Data Dumps

You can "dump" data from the H8000FW for external storage or for use in another H8000FW. To dump, go to the dump menu page in the SETUP area. The dumped data will

be system exclusive and will be sent out the MIDI Out port and the serial port. None of the MIDI parameters on the midi menu page in the SETUP area has any bearing on dumps except for the device ID. The device ID is used as part of the system exclusive messages in the dump. While the dump is occurring, a running display of the number of bytes sent is presented for those keeping score at home. You can reload the dumped information into the H8000FW by presenting it at the MIDI In port or the serial port

(provided system exclusive is set to on and MIDI is set to enabled on the [midi] menu page in the SETUP area). Let’s look at the five "types" of dumps.