LF Audio | Help Center

Device Monitoring and Data Display

basic

Device Cards

When you connect to one or more devices, the Devices tab shows each device as a card with a real-time data preview. Tap any card to open the full monitoring view.

Each card displays:

  • Device name
  • Connection status indicator
  • A live preview appropriate for the device type: a value graph for WVC / HPVM / WTH / WDD / HPPM, or an FFT spectrum preview for SSA and other audio-analysis-capable units.

Full Monitoring View

Tap a device card to open the detailed monitoring screen. What you see depends on your device model.

Voltage Graph

All WVC and HPVM devices display a real-time voltage graph. The graph updates continuously and shows the last several seconds of data. The Y-axis auto-scales to fit your readings.

Temperature Graph

WVC-PRO devices show a temperature graph from the built-in temperature probe. WVC-PRO-6 devices show up to three temperature channels from the daughtercard probes.

Tip

You can switch between Fahrenheit and Celsius in the app's Settings tab or on the device monitoring screen.

Volume Level

WVC devices display the current volume level. This is a read-only display showing what the knob or system has set. Volume is controlled via the physical knob, RTC, or mesh network, not from the app.

When your system is configured with multiple channel groups, the app displays a separate volume level for each group, so you can see the independent volume of each zone at a glance.

Renaming Channels

You can rename any channel (voltage, temperature probes, individual amplifier channels on a 6-channel WVC) directly from the graph: tap a channel name on the graph or in the legend to open the Edit Channel dialog, where you can set a custom name and (for some streams) a value range. The new name appears everywhere the channel is shown: graphs, settings screens, recording sessions, and the customer portal.

Spectrum Analysis

Audio-analysis-capable devices include real-time FFT (Fast Fourier Transform) spectrum analysis. This shows the frequency content of the audio signal passing through each channel.

  • WVC-PRO: Two channels displayed side by side (left and right).
  • WVC-PRO-6: Up to six channels displayed in a grid (three rows of two).
  • SSA: Four channels of FFT and oscilloscope analysis with the same per-channel breakdown.

Each channel shows 15 frequency bands as vertical bars. Taller bars indicate more energy at that frequency. This is useful for:

  • Verifying that audio signal is present on each channel
  • Checking frequency response across your system
  • Identifying if a channel is clipping or has unusual frequency content

Clip Indicators (firmware 3.10.0+)

Starting with firmware 3.10.0, the WVC continuously analyzes every output channel for clipping and reports the result to the app in real time. When a channel starts to clip, a small CLIP badge appears next to that channel on the spectrum and oscilloscope views.

The badge is color-coded by severity:

Color What it means
Yellow Mild: occasional clipping, usually inaudible or barely audible
Orange Moderate: clipping is becoming audible; reduce input gain or volume
Red Severe: sustained clipping; reduce gain immediately to protect speakers

For a deeper explanation of how clip detection works and how to react to it, see Clip Detection.

Note

Earlier firmware versions could occasionally trigger a false clip warning on clean test tones or rebassed bass material. Firmware 3.10.0 reworked the detector so clean signals no longer trip it, while making real clipping show up faster (within a fraction of a second instead of after several seconds of sustained distortion).

Oscilloscope View (WVC-PRO / WVC-PRO-6 / SSA)

Audio-analysis-capable devices also include a real-time oscilloscope view showing the raw audio waveform for each channel.

  • WVC-PRO: Two waveforms (left and right)
  • WVC-PRO-6: Up to six waveforms in a grid layout
  • SSA: Four waveforms

The oscilloscope displays real voltage values on the Y-axis, so you can see the actual signal amplitude for each channel. This is useful for visually inspecting signal shape, detecting clipping, and comparing channels.

Note

Firmware 3.10.0 extended the front-channel oscilloscope's stable low-frequency range down to roughly 15 Hz, so deep-bass content on CH1/CH2 now traces cleanly instead of looking jittery.

Graph Settings

You can customize the monitoring display:

  • Channel toggles: Enable or disable individual data channels to focus on what matters.
  • Graph smoothing: Adjust how much the graph line is smoothed. Less smoothing means more responsive lines; more smoothing means cleaner lines.
  • Time window: Control how many seconds of data are visible on the graph.

These settings are accessible from the device's settings screen (tap the gear icon).