![]() If you listen to it at the same time as the original track, it will also cancel out the clicks in the original audio, so that’s a way to preview what “Apply Changes” will sound like. It will clearly show the clicks it detected for you to visually compare to the original track, and you can also listen to it directly to decide if it includes too much non-click audio. Then, look at that track in spectrogram mode. A neat trick to help experiment with new settings is to duplicate the audio you’re experimenting with settings on, and apply the de-clicker with “Isolate Changes” as the action instead of “Apply changes”.I have this set to 10 ms for some reason. This setting should not affect computation time significantly” ( source). Make it too short and you introduce undesirable artifacts. This specifies a “time period for cross-fading of repairs around each clicky interval. Setting the time between clicks lower than the default may increase muffling, in particular for vocal fry that ends of sentences sometimes trail into ( source). Use low-frequency rolloff effects first for better results!” ( source) This may help clean up crackles in de-voiced intervals and breaths. There is also a dB threshold (for the entire signal) below which closer clicks may be detected. ![]() “Make too small, and more clicks will be identified, but there may be too much damage to voice when it drops in pitch. Time between clicks (in steps, default 3) / dense click threshold (default -45 dB).By looking at a spectrogram, I’ve found that I regularly have clicks that appear to be 15 ms or so, so I have step size set to 5 ms and click length to 3, so that 3*5=15 can actually capture those longer clicks. Increasing the step size is a way to sacrifice some precision while making the plugin run faster. Step size (default 5 ms) / click length (default 2 steps).The description in the plugin says that a lower threshold detects more clicks, but the plugin author suggests that it’s more likely to increase the rate of false positives, require more computation, and damage unclicky parts of the sound, and that he doesn’t mess with this threshold. This has diminishing returns and the author of the plugin says he never uses more than two. If you increase the number of passes, this will allow you to catch clicks that were too near to another click to be detected the first time. The De-Clicker enforces a minimum amount of time between clicks. Other parameters (grouped by topic, but no particular order) Eight (2^ 3) is three octaves, 16 (aka 2^ 4) is four octaves, etc. If it’s four times (2^2), that’s two octaves. To calculate how many octaves your frequency range covers, if the high value of your frequency range is twice the low value, that’s one octave. My current settings actually use 8 bands (4/octave) though, for increased sensitivity. This is 2 octaves (5,000 * 2^2 = 20,000), so to have the same number of bands/octave as the default I would only need 4 bands. For example, I mostly notice clicks that are higher pitched, so I set the range as 5,000 to 20,000 Hz. Low frequencies are more computationally expensive ( see forum post), so if you don’t usually have clicks down that far, you can omit those frequencies from testing. This is one band per half-octave (150 * 2^6 = 9600, so 6 octaves). Under the default settings, the de-clicker processes 12 bands, from 150 Hz to 9600 Hz. So, picking good values comes down to balancing those two factors. More bands = better click detection, but also more bands = slower. The main thing controlling both sensitivity and computation power needed is the number of bands. Frequency range and number of bands (default: 12 bands over 150 - 9600 Hz (2 bands per octave)).Most important parameters for sensitivity and computation ( source) I’ve attached my own declicker settings for reference at the end, in case that’s useful to anyone. After reading through this entire thread over the past couple days, I decided to compile some experimentation guidance and explanation of the different parameters as I understand them.
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