Noise that started today only with acceleration

I have a 2014 1.5 dCi (J11/newer model) Qashqai and it started making an odd noise today on acceleration.

It doesn't matter how fast I'm going but it's only when pressing on the accelerator. If I leave off it, it stops.

If you can imagine an airy/breathy whistle and it changes as I accelerate more/less. Kinda sounds electronic in a way too.

Any ideas would be great, I'm meant to go on a journey tomorrow, 3 hrs drive approx but I'm not sure if its something I should worry about.

I do have a video with audio if it can be posted here?