A ‘bricked’ recording with everything slammed up against 0 dBFS will be a much tougher proposition, and re-recording the music will almost certainly be your best option. Here’s how RX Elements displays what the plug-in is about to do.ĭe-clip is surprisingly effective on passages like this, where clipping doesn’t occur everywhere. It’s set pretty low here, because the clipping occurred at such a low level, it’s unlikely the repaired waveforms will still clip within the actual dynamic range available to this audio file. The Makeup gain slider lets us reduce the final level of the audio, as the repaired peaks may (and often will) be far above the dynamic range of the existing audio. In the third image, we see the suggestion De-clip has made: to analyze and repair anything it finds above -7.1 dBFS. The second UI image above shows what an analysis of this audio provides: brutal clipping, with way too many samples in the affected area crammed up against -7 dBFS.
Not too many years ago, the audio would be considered a complete loss. That’s not his fault but mine: engineering from the stage under the pressure of a live performance, I mis-set our audio interface and the piano performance was clipped at –7 dBFS going into our recorder, resulting in some loud peaks being clipped off. I am leaving the performer anonymous because of the poor quality of the recording. This is a very dynamic passage of solo digital piano, played during a live set several years ago. Here are before-and-after screenshots of the audio, and what they sound like. Since it’s broadband, I used the Single-band algorithm and played with the Sensitivity and Click widening to get rid of nearly all of the click while preserving the surrounding audio.
However, the clipping got out of hand, leading to a nasty click-seen as a vertical line in the frequency spectrum.
Note the odd waveform present in much of the snippet-I deliberately overloaded the input stage from one of my instruments to provide a bit of soft clipping. In the example below, we hear a snippet of audio from a planetarium soundtrack project I worked on a while ago.
IZOTOPE RX 8 ELEMENTS FULL
Set it all the way down at 0.5, the module will barely react to any clicks at all all the way up at 10.0, it will interpret nearly any glitch as a click (dozens or even hundreds per second!) and try to fix them all, which can do some pretty weird things to audio that’s not full of actual clicks. (I usually keep it set to 1–2 milliseconds.) Click Widening lets you smooth out clicks by pulling data from the area on either side of the click how much you use is up to you and depends on the nature of the program material. The multiband Frequency Skew gives you finer control when hunting down low or high frequencies in cicks. You can choose single-band or multiband operation.
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