notehound.app Get the App

Waveform Toolbar

Waveform Toolbar

A row of small buttons below the waveform provides controls for sections, zoom, the timeline ruler, and more. Each button toggles a feature on or off.

Waveform toolbar

Buttons

ButtonIconDescription
Eyeeye / eye.slashToggle section overlays on/off. Only visible when sections exist.
Vertical Zoomup/down arrowsToggle waveform amplitude auto-fit. When active, the waveform scales to fill the available height.
Offset Modeleft/right arrows with lineToggle audio offset adjustment mode. When active, dragging the waveform adjusts the MIDI-to-audio offset instead of scrubbing. See Navigation — Offset Mode.
Timeline RulertimerShow or hide the time ruler along the bottom edge of the waveform. The ruler occupies 16 pt and uses an adaptive time format. See Timeline Ruler below.
Overview Barsplit rectangleToggle the overview bar visibility. Filled icon when visible, outline when hidden. See Overview Bar.
Section Locklock / lock.openLock sections so they cannot be accidentally moved, resized, or deleted. Orange when locked. Only visible when sections exist. Pro only.
Import Sectionsdownload-on-squareImport section markers from the audio file metadata. If sections already exist, a confirmation dialog asks whether to overwrite. Pro only.
SEC+ / SEC xtextToggle section creation mode. When active (white text on orange background), drag on the section strip area to define a new section. Only visible when sections are not locked. Pro only.

Timeline Ruler

The timeline ruler displays time markers along the bottom edge of the waveform to help you read exact positions. Toggle it with the timer icon in the toolbar.

Height: 16 pt at the bottom of the waveform area.

Time format adapts automatically to the zoom level:

Zoom levelFormatExample
Zoomed out (tick interval >= 1 s)M:SS1:30, 0:45
Medium zoom (0.1 s — 1 s)M:SS.d1:30.5
Zoomed in (tick interval < 0.1 s)M:SS.fff1:30.500

Ticks: Major ticks have a 5 pt line and a time label. Four minor ticks appear between each major tick with shorter 2.5 pt lines. Tick spacing adapts automatically (target: ~80 pt between major ticks), snapping to “nice” intervals: 0.01 s, 0.025 s, 0.05 s, 0.1 s, 0.25 s, 0.5 s, 1 s, 2 s, 5 s, 10 s, 15 s, 30 s, 60 s, 120 s, 300 s.