In the Diagnostics panel, select an option from the Effect dropdown menu.
Last updated on
Jan 21, 2026
Learn to use Diagnostics effects to quickly remove clicks, distortion, and silence, or add markers for silent sections.
Diagnostics effects are available either via the Effects menu or directly from the Diagnostics panel (Window > Diagnostics). These tools let you quickly remove clicks, distortion, or silence from audio, as well as add markers where silence occurs.
Note
For maximum audio restoration control, use diagnostics together with Spectral Display tools and Noise Reduction effects.
Diagnose and repair, delete, or mark audio
Unlike conventional noise reduction effects, which process all selected audio, diagnostics scan for problematic or silent areas, and then let you choose which to address.
Select Scan.
At the bottom of the panel, do any of the following:
- Select one or more detected items in the list, and select Repair, Delete, or Mark. The available options depend upon the chosen diagnostic effect. To mark detected clicks or clipping, right-click on the selected items in the list and select Create Markers from the context menu.
- Select Repair All, Delete All, or Mark All to address all detected items.
- Select the magnifying glass icon to zoom in on a selected problem in the Editor panel. Select the icon again to zoom out.
- Select Clear Repaired, Deleted, or Marked to remove previously addressed items from the list.
The Diagnostics > DeClicker effect detects and removes clicks and pops from wireless microphones, vinyl records, and other sources.
DeClicker options match those for the Automatic Click Remover effect, which you can combine with other effects in the Effects Rack and apply in the Multitrack Editor. That effect also applies multiple scan and repair passes automatically; to achieve the same level of click reduction with the DeClicker, you must manually apply it multiple times. However, the DeClicker effect allows you to evaluate detected clicks and choose which ones to address.
In the Diagnostics panel, select Settings to access these options:
Threshold
Determines sensitivity to noise. Lower settings detect more clicks and pops but may include audio you wish to retain. Settings range from 1 to 100; the default is 30.
Complexity
Indicates the complexity of noise. Higher settings apply more processing but can degrade audio quality. Settings range from 1 to 100; the default is 16.
Note
To visually identify clicks, zoom in and use Spectral Frequency Display with a resolution of 256 bands. You can access this setting in the Spectral Display tab of the Preferences dialog box. Most clicks appear as bright vertical bars that extend from the top to the bottom of the display.
The Diagnostics > DeClipper effect repairs clipped waveforms by filling in clipped sections with new audio data. Clipping occurs when audio amplitude exceeds the maximum level for the current bit depth. Commonly, clipping results from recording levels that are too high. You can monitor clipping during recording or playback by watching the Level Meters; when clipping occurs, the boxes on the far right of the meters turn red.
Visually, clipped audio appears as broad flat areas at the top of a waveform. Sonically, clipped audio is a static‑like distortion.
Note
If you need to adjust the DC offset of clipped audio, first use the DeClipper effect. If you instead adjust the DC offset first, the DeClipper won’t identify clipped areas that fall below 0 dBFS.
In the Diagnostics panel, select Settings to access these options:
Gain
Specifies the amount of attenuation that occurs before processing. Select Auto to base the gain setting on average input amplitude.
Tolerance
Specifies the amplitude variation in clipped regions. A value of 0% detects clipping only in perfectly horizontal lines at maximum amplitude; 1% detects clipping beginning at 1% below maximum amplitude, and so on. A value of 1% detects most clipping.
Min. Clip Size
Specifies the length of the shortest run of clipped samples to repair. Lower values repair a higher percentage of clipped samples; higher values repair clipped samples only if they’re preceded or followed other clipped samples.
Interpolation
- The Cubic option uses spline curves to re-create the frequency content of clipped audio. This approach is generally faster for most situations, but it can introduce spurious new frequencies.
- The FFT option uses Fast Fourier transforms to re-create clipped audio. This approach is typically slower but best for severe clipping. From the FFT Size menu, choose the number of frequency bands to evaluate and replace. More bands result in greater accuracy but longer processing.
Note
To retain amplitude when restoring clipped audio, apply the DeClipper effect with a Gain setting of zero, followed by the Hard Limiting effect with a Boost value of zero and a Limit value of ‑0.2 dB.
The Diagnostics > Delete Silence and Mark Audio effects identify silent passages of audio and either remove or mark them. Automatically deleting silence helps you tighten up tracks without affecting foreground audio. Automatically marking silence helps you quickly navigate to audio cues for editing.
In the Diagnostics panel, select Settings to access these options:
Define Silence As
Specifies the amplitude and duration identified as silence.
Define Audio As
Specifies the amplitude and duration identified as audio content.
Find Levels
Automatically calculates the signal levels of silence and audio based on content in the file.
Fix By (Delete Silence only)
Select Shortening Silence to reduce silent passages to the specified number of milliseconds. Select Deleting Silence to mute silent passages while retaining the file length. Deleting silence helps maintain video synchronization with audio clips in video editing applications.
Tip
To divide sections of sound or speech separated by silence into different files, apply the Mark Audio effect, and select Mark All. Then refer to saving audio between markers to new files.
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