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Clicks will be visible as vertical lines on the spectrogram. To locate clicks, display both waveform and spectrogram by dragging the waveform/spectrogram transparency slider to the center. Note : For material with crackle/clicks or pops of very different sizes and lengths, try running Declick/Decrackle in several passes. This will let you hear what is being removed from the audio, allowing you to fine tune your settings. To better hear what is being removed, toggle the Output Clicks Only control during preview playback. For example, drum hits may be mistaken for clicks at high Width and Sensitivity settings. The ideal setting should remove the most clicks without damaging transients in the program material. Hit preview to hear the result of your settings, and as audio is playing back, fine tune the sensitivity and click width sliders to remove the most clicks and pops.
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The Multiband options work well for wider vinyl clicks or thumps and perform great on very uneven audio material such as old recordings.īefore running the module in Declick/Decrackle automatic mode, it is a good idea to look at the Spectrogram display and visually identify clicks to inspect how wide they are, as this will help you see roughly what your Maximum Click Width and sensitivity should be set to. Single-band mode works very well with narrow 'digital' clicks and has the advantage of having a much faster processing time. Start by choosing the desired Algorithm type for your Declick module. Interpolate processes must be performed on each event individually. The Interpolate mode is useful when you want more precise control over repairing clicks, or in some cases where there are a few hard to fix clicks left over after running the Automatic mode. For audio files that have clicks/pops or crackle throughout the file, Automatic mode is the best choice as it will save you a lot of time. Automatic mode can look at a whole file, or a selection, and detect and remove clicks and pops.
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On the contrary, the best results can be had by first running the Declick module, and afterward, processing with Decrackle.Īutomatic or Interpolate Declick/Decrackle?ĭeclick/Decrackle features both Manual and Automatic modes. TIP: Decrackle is not designed to be used instead of Declick. Decrackle is designed to handle a more continuous stream of irregularities in your audio that become blended together at lower amplitude levels, resulting in what we hear as crackle. Typically, the duration of a single click and pop will not go beyond 10 ms.