[Sam Morr]

Update – I have now tried using the EQ 3-1 band, setting a high Q filter and then boosting gain and lowering the frequency to try and isolate it. No luck as it just seems to add a sort of hum. The noise I’m getting is more of a hiss.
I have also tried different presets in the EQ tool such as NTSC and PAL hum buster, hiss filter and hiss filter with high end boost.

Any suggestions much appreciated, I can send an example of the audio if needed.
Thanks all.

[Sam Morr]

I’m not sure if it would help but try doing a video mixdown of the layers first?
I know when I use text over colours they fade at different times when using a quick effect so it may be the same sort of issues with colour.