Pause the waveform to inspect a transient¶
Single-clicking the waveform display freezes a snapshot of the current audio buffer so you can examine a transient, clipping event, or dropout without the trace continuing to scroll.
Before you start¶
- The Waveform applet must be visible. If it is not, click the WAVE tray button in the right sidebar to open it.
- Audio must be flowing (RX or TX) so there is something worth freezing. If no samples have arrived within 1 second, the display shows a "no RX audio" or "no TX audio" placeholder instead of a trace.
Steps¶
- Watch the waveform display for the transient you want to examine.
- Single-click anywhere on the waveform display at the moment the event appears.
- Confirm the display is frozen: a PAUSED badge appears in the footer of the waveform display.
- Examine the frozen trace. The header continues to show the RX/TX direction, RMS dBFS, and PK dBFS values that were captured at the moment of the click.
- Single-click the waveform display again to resume live updates. The PAUSED badge disappears.
What each control does¶
| Control | Behavior | Default | Valid range | Setting key |
|---|---|---|---|---|
| Click on display | Toggles pause: freezes a buffer snapshot on first click; resumes live display on second click. | Live | Live / Paused | — |
| View | Selects the visualization mode shown while paused. | Scope | Scope, Envelope, History, Bands | WaveApplet_ViewMode |
| Zoom | Scales the amplitude axis. Higher values stretch small signals vertically, making subtle transients easier to see while paused. | 1.7x (170) | 100–600 (1.0x–6.0x) | WaveApplet_ZoomPercent |
| FPS | Controls repaint rate while live. Has no effect while paused. | 24 | 5–30 Hz | WaveApplet_RefreshRateHz |
Tips¶
- The click is disambiguated from a double-click by a short interval. If the display does not freeze on your first click, click once and wait rather than clicking rapidly.
- Double-clicking opens or closes the settings drawer instead of pausing. If you accidentally open the drawer, double-click again to close it, then single-click to pause.
- Increasing Zoom before pausing can make low-level transients more visible in the frozen frame.
- The TX path is tinted differently from the RX path, so you can confirm which audio direction the frozen snapshot represents without reading the header.
Troubleshooting¶
- Click does not pause the display — Make sure you are clicking once on the waveform area itself, not on the settings drawer below it. A rapid second click will immediately resume the display; click once and pause before clicking again.
- PAUSED badge appears but the trace is blank — The buffer was empty at the moment you clicked. This happens when no audio has arrived within the last second. Resume live mode, wait for audio to appear, then click again.
- Display resumes on its own — Pausing only freezes the visual display; a reconnect or audio engine reset clears the buffer and restores the live view.