LTCast LTCast
/ Waveform view
Manual Waveform view

Waveform view

The waveform view is the main visual reference for the audio content and timecode position. It shows the audio signal, the LTC signal, and optionally a video reference track, all on a shared time axis.

Track layout

The waveform area displays up to three stacked tracks:

  • Music track (top) — the waveform of the audio file's music content; always visible when a file is loaded
  • LTC signal track (middle) — the waveform of the decoded LTC channel; shows the biphase mark coding of the timecode signal; visible when LTC is present in the audio file
  • Video track (bottom) — the audio waveform extracted from the video reference file; visible when a video is loaded via Import Video

Playhead and seeking

The vertical line across all tracks is the playhead — it shows the current playback position. To seek to a different position:

  • Click anywhere on the waveform to jump the playhead to that position
  • Drag the playhead left or right to scrub

Seeking while stopped updates the timecode display and sends a locate message on MTC (Full Frame SysEx) and Art-Net. Seeking during playback causes a brief gap in LTC audio while the encoder resets to the new position.

Zoom

  • Music track zoomCtrl+Scroll (Windows) / Cmd+Scroll (macOS) over the music waveform
  • Video track zoomScroll (without modifier) over the video track
  • The two tracks zoom independently, letting you align them with frame precision for video reference work
  • Zoom is centered on the current cursor position

Pan

  • Shift+Scroll to pan left or right along the timeline
  • Drag on an empty area of the waveform to pan
  • The playhead stays fixed in the view during pan; the waveform moves underneath it

LTC channel selector

The LTC Channel selector above the waveform controls which audio channel is decoded as LTC:

  • Auto — LTCast picks the channel with the strongest LTC signal
  • Left — always decode LTC from the left channel
  • Right — always decode LTC from the right channel

Markers

Markers (cue points) appear as vertical lines on the waveform. They are used to label song sections, trigger events, or mark positions in the timeline.

  • Add a marker — double-click anywhere on the waveform
  • Select a marker — single-click a marker line; the marker panel shows its name and timecode
  • Move a marker — drag the marker line left or right
  • Delete a marker — select it and press Delete

Gesture reference

A drag hint at the bottom of the waveform area lists all available gestures for the current context. Hover over the waveform to see which modifier keys change the scroll or click behavior.