None of our intercoms or audio panels have any trip level associated with aircraft radios or switched inputs. So the good news here is that if it is a PS Engineering product, it is not causing the clipping.
The IntelliVox(automatic VOX) is for our intercom function only.
Hope this helps.
- Mark
Does anyone know if there is a setting like “sidetone” in the KX radio, for the returned audio level applicable when PTT is pressed?
As I wrote above, the clipping is ok when just talking. It is talking to ATC that is getting clipped on the way to the headset socket(s).
I have tried the lowpass suggested but there is a significant loss of clarity. Maybe there is a rolloff setting which works ok… but it would be best to avoid this to start with.
I also get the impression that the issue is much worse during flight than on the ground, which suggests that some sort of auto squelch is taking place and is pushing the signal further into saturation. Maybe @mark might have an idea; this is a PS7000 intercom from year 2000 or so.
That’s not bad at all. I will also try the lowpass filter since indeed the “square” tops must contain a lot of high harmonics.
I’ve run it through the ‘DeClipper’ tool in Adobe Audition.
A low pass filter should at least reduce the severity a fair bit – after all, clipping manifests itself as high frequency components.
I’m pretty sure it is before the recorder, I think it is the limiter on the actual transmission that is causing the problem. Which is why I said it will be difficult to get rid of, but it is part of its charm in this context.
I am fairly sure it happens before the recorder, because similar amplitude signals of me talking to my passenger are not clipped.
You could try pulling up each of the dots on your waveform
That would take days 
Clip fix software does exactly that. It sticks a fake round top on it.
So the “clipping” is in a radio transmission not in the recording. That is difficult to get rid of. You could play for hours an improve it a bit but I wonder is it worth it.
You could try pulling up each of the dots on your waveform on “Fairlight”.
I posted a link to the mp3 above; you can play it.
The general view in the editing community is that once this happens you are stuffed because, obviously, the information is missing. However one can remove the harshness by de-clipping fairly well.
I agree that the waveform looks little strange but I am more interested in the sound it makes and whether the graphic equalizer will even out the sound or whether I need to put something in behind it to hide a sound. At the moment I use the sound mixer within Davinci Resolve Studio 16. I seem to be able to sort out most sound problems with it.
