Display Mode - PPM Instrument

| General Description
| Instrument Description
| Control Bar - left (upper) section: PPM instrument functions
| Control Bar - right (lower) section

General Description

In display mode, the TouchMonitor shows the instruments and their layout defined in the currently loaded preset.

Touching the screen area of an instrument will put this instrument into focus. This is recognized by a colored frame instead of a grey one. The frame color conforms to the identifier set for the group the focused instrument belongs to.

The Control Bar positioned at the lower screen edge contains several keys. It is displayed permanently if the "Control Bar" option in the "General" section of the "System" menu is set to "permanent". Otherwise, it will be displayed temporarily after touching the screen.

The Control Bar has two sections. The left (upper) section shows the specific keys defined for the focused instrument. This makes it very fast to access a specific function of one of the instruments on screen – just touch the instrument and select the desired function.

Please note:
The specific keys that are displayed in the left (upper) Control Bar section can be defined individually for each instrument. To do this, touch the "Edit Instrument" key and select the "Configure Keys" option in the menu. The default value for each key can be set in the menu as well.

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Instrument Description

The Program Meter provides vertical or horizontal bargraph displays for the individual channels of the active signal source. The signal level, the loudness or a combination of both are displayed for each channel. Using the Program Meter, please ensure that the levels and loudness values of the individual channels correspond to the requirements defined for the audio program measured.
The signal levels for each channel, displayed in yellow in the factory presets, can be presented in two distinct modes, depending on the preset configuration used. The traditional mode is the Peakmeter (PPM), using one of the common scales such as DIN, British or Nordic. Alternatively, the single channel signal levels can be displayed using the newly developed True Peak scale conforming to the most recent standards. True Peak measurements have been introduced to make sure that high-level audio signals cannot produce unwanted artifacts even when processing them in a codec for data reduction, in a sample rate converter or a D/A converter. For codec processing, the EBU R128 recommends a maximum level of –3 dBTP. For all other applications, it recommends a maximum level of –1 dBTP.
The loudness bargraphs, displayed in cyan in the factory presets, show the momentary loudness values for each channel using an integration time of 400 ms.

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Control Bar - left (upper) section: PPM instrument functions

With the PPM instrument in focus, the left (upper) section of the Control Bar may contain any or all of the keys described below.

Please note:
Using the "Configure Keys" option in the PPM Menu, any key available for the PPM instrument may be removed from the Control Bar. Only keys set to "On" (default) in the Control Bar section of the "PPM Key Settings" menu are available in normal display mode with the PPM instrument in focus.

• Gain
This key is used to temporarily increase the PPM instrument’s input gain by 20 or 40 dB (depending on the selected scale).

• Memory
This key is used to temporarily display the maximum values of the PPM and loudness bars as well as the numeric displays since the last reset. This way, the maximum levels occurring during individual time periods can be shown.

• Reset Memory
This key is used to reset the maximum levels stored by the Memory function (see above).

• Reset Peakhold
This key is present only if the Peakhold function was activated in the PPM menu. It is used to reset the Peakhold dots for the PPM bargraphs.

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Control Bar - right (lower) section

The right (lower) section of the Control Bar always contains the following four keys:

• Edit Instrument
This key is used to directly access the menu parameters of the focused instrument. Any edits in the menu are saved to the current preset using the "Save" key.

• Load Preset
This key is used to load one of the presets stored in the unit’s internal memory or on an USB storage medium connected to one of the USB ports.

• Menu
This key is used to enter the Main Menu. This is the starting point for global system configuration, licence handling and preset management.

• Help
This key is used to enter the onscreen help for normal display mode (this text). Depending on the focused instrument, the help page will also describe the individual keys of this instrument.

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