The WDD-LITE is a landscape AMOLED touchscreen. Everything is done by touch: there is no rotary encoder and no buttons. This article covers how to move around the screen and what each view shows.
Input Methods
| Gesture | What It Does |
|---|---|
| Tap | Selects an item: a mode tab, a settings row, a button, or a confirm/cancel choice |
| Swipe left / right | On the main screen, switches between display modes (Volts, Volume, Temp, and so on). On a settings screen, swiping right goes back |
| Swipe up / down | On a menu or settings screen, moves the highlight between list items. Lists also scroll with momentum |
| Long press | Opens the main menu from the main screen |
On the main screen you can also tap the gear icon in the top-right corner to open the menu, as an alternative to long-pressing.
Main Screen Layout
The main screen has three parts:
- Top bar (across the top): the LF Audio logo, compact readouts for voltage, temperature, and volume, system status icons, and the settings gear.
- Content area (the middle): shows whichever mode you are currently viewing.
- Mode tab bar (across the bottom): a row of tabs, one per available mode. The active tab is highlighted.
Switching Between Modes
There are two ways to change what the content area shows:
- Tap a mode tab along the bottom of the screen.
- Swipe left or right anywhere in the content area. Swiping cycles through the available modes and wraps around at the ends.
Which mode tabs appear depends on what your connected base station supports. Volts and Volume are always available; Temp, FFT, Scope, and Waterfall appear only when the base station provides that data. See Overview for the full capability table.
The Modes
Volts
The default view. It shows your system voltage as a large reading over a full-width scrolling trend graph, so you can see both the current value and how it has been moving.
Below the large reading is a smaller min / max readout (for example, min 12.3V max 14.5V). Whether these values track the all-time lowest and highest since power-on, or just the values currently visible in the graph, is controlled by the Min/Max setting. See Menus and Settings.
Volume
A console of vertical volume faders, one per channel group, showing your system's volume at a glance.
- Each fader's fill height shows the volume level that is actually playing for that group.
- The number above each fader shows that group's own set point. For a group that follows another group, this number is the value you set for it, even though what plays is adjusted by its parent.
- A group that is slaved to another (its volume follows a parent group) shows a dim band up to its set point and a small
> parent namelink beneath it, so you can see the relationship. - At zero volume, a fader reads MUTE.
Volume can be shown as a percentage or in decibels (dB), set by the Volume Units setting. If your system has only one volume group, a single MASTER fader is shown instead.
The WDD-LITE currently displays volume rather than adjusting it. Use your volume knob, RTC, or the LF Audio AuralSync app to change volume. Direct touch volume control is planned for a future firmware update.
Temp (PRO / PRO 6 only)
Amplifier temperature for each connected probe, shown as up to three readouts over a shared scrolling trend graph. Probes are labeled PROBE 1, PROBE 2, and PROBE 3.
Only probes that actually have a sensor plugged in are shown. If a probe jack is empty, its readout is hidden rather than showing a placeholder, and the trend line for that probe is skipped. If nothing is connected, a single -- is shown. The displayed unit follows your Temp Units setting (°F or °C).
This view appears only when connected to a base station with temperature probes. A WVC-PRO supports one probe; a WVC-PRO 6 supports three.
FFT (PRO / PRO 6 only)
A real-time frequency spectrum analyzer. The left and right channels are shown side by side as a bar graph, with the live RCA input voltage for each channel labeled in the corners. This view is useful for seeing the frequency content of the signal reaching your amplifier.
Scope (PRO / PRO 6 only)
A real-time oscilloscope. The left and right channel waveforms are drawn together over a grid, so you can see the actual shape of the audio signal. Quiet signals are scaled down so they do not fill the screen, giving you a sense of relative level.
Waterfall (PRO / PRO 6)
A view of the audio spectrum over time, showing both channels side by side. Newer data sits in front and older data recedes, so you can watch how the spectrum has changed over the last few seconds. On a 6-channel WVC-PRO 6 you can pick which channel pair to view (see the channel pair selector below); on a 2-channel WVC-PRO it shows that system's single left/right pair.
The Waterfall view has a 3D | SPEC selector in the top-left corner that switches between two ways of drawing the same data:
- 3D: a mountain-range view where each channel's spectrum rises and falls over time, with newer frames in front.
- SPEC: a spectrogram (also called a spectrograph), a flat color-coded heatmap where each horizontal line is one moment's frequency content and brightness represents level. The newest line appears at the top and the image scrolls downward as new data arrives, so you can read sustained tones, sweeps, and rhythmic content at a glance.
Tap 3D or SPEC to switch. Your choice is saved and restored across restarts.
When you first switch to the Waterfall view, the display takes a second or two to fill in as new data streams in. This is expected, not a freeze: the WDD-LITE only requests waterfall data for the channels you are actively viewing, which keeps the wireless link efficient.
Channel Pair Selector (PRO 6 Only)
On a 6-channel WVC-PRO 6, the FFT, Scope, and Waterfall views show one channel pair at a time. A pill at the top of the view lets you tap to switch between CH 1-2, CH 3-4, and CH 5-6. On 2-channel systems there is only one pair, so the selector does not appear.
When Data Isn't Available
If the audio analysis data stops arriving (for example, the link briefly drops), the FFT, Scope, and Waterfall views show a NO DATA message until fresh data resumes.
Status Icons
Icons in the top bar reflect your system's current state:
| Icon | Meaning |
|---|---|
| Shield | The Intelligent Drive System (IDS) is armed |
| Crosshairs | Competition mode is active |
| Bolt (blinking) | IDS triggered on low voltage |
| Fire (blinking) | IDS triggered on high temperature |
| Bolt + Fire (blinking) | IDS triggered on both voltage and temperature |
The warning icon (bolt / fire) blinks to draw attention and clears on its own once the underlying condition (low voltage or high temperature) goes away. For details on what IDS does, see the Intelligent Drive System (IDS) article.
Top-Bar Readouts
Alongside the icons, the top bar carries compact glances so the key numbers are always visible, even while you are on a different mode:
- Voltage: the current system voltage, to one decimal.
- Temperature: the first connected temperature probe (hidden when no probe is connected), in your selected unit.
- Volume: the master volume, as a percentage or in dB depending on your Volume Units setting.
Auto Swap (Slideshow Mode)
When enabled, Auto Swap automatically cycles the main display through the available mode tabs every few seconds, the same sequence you would swipe through manually. You control whether it is on and how long each mode is shown (the Swap Time) from Settings. See Menus and Settings.
If the display is changing views while you are trying to read one, turn Auto Swap off in Settings and switch modes manually by tapping a tab or swiping.
Connecting and Update Screens
While the WDD-LITE is searching for or reconnecting to a base station, it shows a status screen with a progress indicator and a message describing what it is doing. The menu remains reachable with a long-press throughout, so you can start a firmware update or change settings without waiting for the connection.
During a firmware update (its own or the base station's), this same screen shows the live progress of the update. See Firmware Updates for the full workflow.
Navigating Menus and Settings Screens
All menu and settings screens share a consistent layout:
- A title stays fixed at the top. Tap it to go back.
- A scrollable list of items sits below the title. Swipe up or down to move the highlight, or scroll the list with a flick.
- A Back item at the bottom is another way to return, and swiping right from any settings screen also goes back.
- Tap an item to activate it: this toggles a switch, opens a sub-screen, cycles an option, or starts editing a slider.
For sliders, tap the row to begin editing, then adjust the value. See Menus and Settings for the full menu structure and every setting.
Display Brightness
Adjust screen brightness from 10-100% in Settings > Brightness. Lower brightness saves power and reduces glare in dark environments; the change applies immediately as you adjust it.