Common actions
Open track controls
Click a track name to select it. When the menu is pinned, it displays the selected track’s settings.
If the menu is floating, hover over … on the track header to open it, then move the pointer into the menu to use its controls. Click … or right-click the track’s display to keep the menu open after moving the pointer away. See Pinned and floating menu.
Set options for all tracks
The right half of the track menu contains per-track options such as Wave, Spectrogram, LUFS and Analyzers. Click options with the left mouse button to change the selected track’s settings. If several tracks are selected, the change applies to all selected tracks.
Right-click an option to apply it to all tracks. For sliders and other draggable controls, left-drag adjusts the selected tracks; right-drag adjusts all tracks. Color controls use different mouse actions; see Track name and color and Spectrogram.
For example, right-click Spectral in the Wave group to use spectral waveform coloring for all tracks.
Right-drag R at the right of the Spectrum preview to adjust release for all tracks.
Change track color
A colored dot beside the track name controls the track color.
Left-click the dot to open the custom color picker and choose a color for that track or the selected tracks.
Right-click the dot to restore automatic colors for that track or the selected tracks.
Stack and sum tracks
A stack groups tracks for comparison, with an optional Sum lane showing their combined captured inputs. To compare tracks, place an OScope instance on each one. The active instances appear in the Trackbar, where they can be selected for stacking.
Ctrl-click track names on Windows, or Command-click on macOS, to select two or more tracks.
At the top of the track menu, choose the result:
- Stack: Overlay the selected tracks in one stack and show their Sum.
- Sum: Show the selected tracks in separate lanes with their Sum.
After creating the stack, its member-layout and Σ buttons change the lane arrangement and Sum visibility. See Stack and Sum display for the resulting view.
To add a track to a specific stack, select its number in the Stack row at the bottom of the track menu. A main input and its sidechain are assigned together. If all four groups contain unselected tracks, set every member of one group to Off in the Stack row before creating another stack.
See how frequencies change over time
Select the track and turn on Spectrogram in its menu. A spectrogram lane appears in the track display.
To choose which channels are analyzed, use Spectral source below the Analyzers heading in the same menu. Choose Stereo for both channels, L or R for one channel, M for Mid, or S for Side.
To change colors, click the colored circle beside Spectrogram and choose a gradient. See the gradient chooser and spectrogram example.
Show loudness over time
Turn on LUFS in the track menu. Choose Stereo for the combined measurement, or L and R for individual channels. Choose Overlay or Split for the lane layout.
Click the Audija logo at the top of the global control column to open Options.
In Options → LUFS, enable the histories to display: Momentary, Short-term or Integrated.
Channel buttons choose the audio being measured; the Options switches choose the measurement durations. Momentary needs 400 ms of audio and Short-term needs 3 seconds. LUFS display explains the histories and when the Integrated average restarts.
Show a sidechain beside the main input
Connect audio to the OScope instance’s sidechain input in the DAW.
Click the Audija logo to open Options, then enable Display → Show sidechains.
Click SC on the track header to expand the connected sidechain. Click it again to collapse the view.
Freeze the display for inspection
Click the snowflake below the Audija logo to freeze the displayed data.
Inspect the retained display. Click the snowflake again to resume updates.
For automatic Freeze when playback stops, choose Options → Playback → On transport stop → Freeze. Automatic Freeze ends when playback resumes. Manual Freeze stays active until released.
Match the display to the DAW loop
Set and enable a loop in the DAW.
Enable automatic DAW-loop following with the small A at the lower-right of the Follow / Loop button.
When the playhead is inside the enabled loop, the display switches to Loop mode and uses that loop’s start and length. The view-length control shows DAW LOOP.
Outside the loop, the manually chosen mode and length apply. To repeat a display range independently, choose Loop and set View length. These settings change the display; DAW playback is controlled separately.
Align a captured waveform with DAW timing
Delay compensation aligns captured audio with the DAW’s sample position by shifting the timing of this instance’s main input and sidechain. The Delay compensation panel identifies the main-input track and provides an offset from −3000 to +3000 ms.
Click the clock at the lower-left of the musical grid button to open Delay compensation.
Set Alignment grid to the interval needed for alignment, then click Detect transient.
Stop and start DAW playback. After this restart, detection aligns the first detected transient with the preceding Alignment grid line, leaving a transient already on a line in place. If the required correction exceeds the offset range, the adjustment stops at the limit.
For manual adjustment, drag the offset, right-drag for finer changes, or click to enter milliseconds. Positive values move captured audio earlier; negative values move it later. Delay compensation explains the arrows and the independent Alignment grid.
Trackbar
The Trackbar contains the track names beside the signal displays. In a stack, several name bars appear within the same group.
Drag the Trackbar’s right edge horizontally to expand or collapse the headers. Intermediate widths are supported. Navigation and resizing explains track scrolling, track height, and panel dividers.
Track names and selection
Click a track name to select it. The pinned Menu displays the selected track’s settings. When the menu is floating, hover over the track-header … button to open it. Click … or right-click the track’s display to keep the menu open after moving the pointer away; see Pinned and floating menu.
| Control | Function and operation |
|---|---|
| Select multiple tracks | Ctrl-click on Windows or Command-click on macOS to add or remove a track. Shift-click selects a range. Ctrl+Shift-click on Windows or Command+Shift-click on macOS adds a range to the selection. |
| Track name | Drag a track name to a new position. A main input and its sidechain move together. For fitting a track or stack vertically, see Headers, rows, and panel dividers. |
For the menu’s Sum, Stack, Fit, and Together buttons, see Selection actions.
Stack buttons
For stack setup, follow Stack and sum tracks. The buttons below control an existing stack.
The three buttons sit below the stack’s member names.
Member layout
Switch between separate member lanes and a shared display with the members overlaid.
Collision highlighting
Show or hide Spectrum collision highlighting for the stack.
Sum
Show or hide the Sum lane.
The Sum combines the captured inputs of visible stack members, including expanded sidechains, and aligns them by sample position. It represents the audio at each OScope insertion point, before any processing later in the DAW chain. The Wave display shows the member waveforms and Sum.
Available tracks and sidechains
Active OScope instances appear in the Trackbar and can be assigned to multi-track stacks. See Stack and sum tracks.
Enable Options → Display → Show sidechains to expose SC buttons for connected sidechain inputs. Click SC to expand or collapse the sidechain view.
See OScope editions for the features included in Free, Light, and Full.
Wave display
The Wave display is the central time display beside the Trackbar. Each track can show a waveform, a spectrogram, loudness lanes, and analyzers, selected in its menu. The waveform, spectrogram, and loudness lanes share the timeline; the analyzers appear to their right.
Timeline controls
The timeline follows the shared navigation gestures: horizontal drag pans time, vertical drag zooms, and double-click resets the view.
The menu’s Follow / Loop and View length controls set how the display advances and how much time it covers. Delay compensation aligns this instance’s captured main input and sidechain with DAW timing.
Waveform and channels
The track menu’s Wave controls select channels, channel layout, coloring, and filtering.
Drag the vertical scale or right-edge navigation area to adjust the waveform’s displayed size and position; see amplitude navigation for the gestures. Audio gain stays the same.
Peak readings come from the captured sample values. Waveform interpolation changes how the connections between samples are drawn, so the curve should be read as a display of those samples rather than a measurement of inter-sample true peaks.
Stack and Sum display
The stack buttons select shared or separate member lanes and show or hide Sum.
Spectrogram display
The Spectrogram controls select the palette. Spectral source selects the analyzed channels.
When scales are enabled, the keyboard marks the frequency axis and provides frequency navigation. Spectrogram visible floor sets the quietest visible level. With Spectral gain compensation enabled, spectral brightness adjusts automatically for changes in input level.
LUFS display
The LUFS lanes show the channel measurements enabled in the menu: L for left, R for right, and C for the combined Stereo measurement. Stereo is calculated from the channels’ combined energy rather than by averaging the L and R readings.
| Label | Measurement |
|---|---|
| M — Momentary | Loudness measured over a 400 ms window. |
| S — Short-term | Loudness measured over a 3 s window. |
| I — Integrated | Gated average loudness since playback started. Starting playback again, seeking or looping back begins a new average. While playback is stopped and live input is displayed, the average covers the last 30 seconds of incoming audio. |
Momentary and short-term values form histories. M requires at least 400 ms of audio and S requires at least 3 s. A dash indicates an unavailable value.
To measure a whole pass with Integrated, open an OScope window before starting playback. If the first window is opened during playback, earlier audio may be missing from the average; restart playback with the window open to include the whole pass.
Choose which histories are visible in Options → LUFS. The L, R and Stereo buttons select audio channels; Momentary, Short-term and Integrated select measurement durations.
Overlay
Split
Crosshair and cursor readout
Enable the crosshair and cursor readout, then move the pointer over the display. The crosshair becomes visible as the pointer settles.
| Pointer location | Readout |
|---|---|
| Waveform | Sample-peak level. When a cycle is identified, the readout also shows its zero-crossing frequency estimate and corresponding note, plus half-cycle length in milliseconds and samples. |
| Spectrogram | Frequency, note, and measured spectral power at the cursor. |
| LUFS | The level at the pointer’s vertical position, plus stored M, S, and I readings near its time position for the enabled channels. |
The zero-crossing estimate is easiest to read on a clear, repeating waveform; complex or noisy signals can make it unstable. When a measurement is missing, its readout shows a dash or “Unavailable.” A level readout may show −inf during silence or while a loudness window is still filling. Note names follow the reference set in Options → Analysis → Concert pitch A4.
Analyzers
The Analyzers occupy the right-hand side of the window. Their visibility, coloring, and guides are set in the track menu.
Analyzer controls and layout
Use the panel dividers to resize the analyzer area and its columns. The right edge of each group provides vertical navigation. Right-click an analyzer to open its track menu.
Crosshair readouts remain available when labels and grids are hidden.
Spectrum
The Spectrum plot shows how the signal’s level varies across frequency, with a logarithmic frequency scale. Choose the analyzed channels with Spectral source in the track menu.
Analyzer tilt changes the spectrum’s displayed slope around the frequency set by Analyzer pivot. The level at the pivot stays the same. Set tilt to 0 dB/oct to view the spectrum without this adjustment.
With the crosshair enabled, the readout shows Frequency in Hz and musical note, Cursor level at the pointer’s vertical position, and each displayed track’s spectrum level at that frequency. Track levels include the selected analyzer tilt.
Collision highlighting
Collision highlighting compares the spectra of the visible tracks in a stack and shades the frequencies where at least two tracks have strong content. Click the stack’s overlapping-curve button to show the comparison. The Sum can be displayed alongside the tracks, but the comparison uses the individual inputs.
The comparison uses levels before Analyzer tilt: at each frequency, a track contributes when its spectrum level is at least −60 dBFS and within 24 dB of its own spectrum peak. These two thresholds keep very quiet content and the low-level tails of a spectrum out of the comparison.
For two tracks, the shaded shape follows the lower of their qualifying levels; with more tracks, it follows the second-highest. The shading becomes brighter as that shared level rises and fades in near the threshold. The comparison follows each track’s Spectral source and Spectrum Attack, Release and Smoothing settings.
In the kick-and-bass example below, the shading draws attention to frequencies occupied by both instruments. Follow those regions across the two curves to see where their stronger frequency content meets.
Gonio — Goniometer
Gonio plots Mid vertically and Side horizontally. Identical left and right channels form a vertical trace; equal channels with opposite polarity form a horizontal trace. The plot uses the captured L/R channels independently of Spectral source.
Move the pointer across Gonio to read the Mid, Side, L and R amplitudes represented by that position. The readout labels them Cursor Mid, Cursor Side, Cursor L and Cursor R, using linear amplitudes where 1 represents full scale. Display gain shows the plot’s gain in dB.
Correlation
Correlation measures the relationship between the captured left and right channels, from −1 to +1. Values near +1 indicate matching polarity, values near −1 indicate opposite polarity, and values near 0 indicate little linear correlation. This measurement is independent of Spectral source.
The readout separates Cursor, the value at the pointer’s position on the scale, from each track’s measured correlation. A dash indicates that the measurement is unavailable.