Hi Steve,

I carried out some more tests last week with the microphone position set at engine bay instead of cabin.

This has fixed the OTL problem and meant that we could listen to the audio in full.

The synchronisation problem on the waterfall charts is still present.

Regards

Dan

Hi,

Do you have any news on this yet?

Thanks

Dan

OK, thanks - please update me when you have an answer.

This is the file requested by Steve Smith

In the rpm/time graph it can be seen that the rpm peaks at 10 seconds, whereas on the 3D frequency graph the order curves (1st & 2nd order) can be seen to peak at about 9 seconds then decay from 9-10 seconds. This is where I think there is a phasing issue.

One thing I've found today whilst testing (3 axis vibration sensor this time) is that the 'Signal Options' box is not present, how can I access this?

Hi,

I've been away on factory shutdown for a week so will try to grab the information you need when I can.

Dan

Hi Phil & Steve, Between you my questions 1 & 4 are answered. Hopefully I've explained what I mean by question 3. For question 2 - audio out of sync with graphs, you need to play back the pddata file I uploaded with PC sound on. If you start playback at any point in the recording you will hear appro...

Hi Phil & Steve, I've read through all of Phil's post and will look at Steve's when I get in tomorrow but I gather that you both want to look at the pddata file so I have attached this. My concern about the unsynched graphs can be seen most clearly in the vibration data screen shot I took. This is h...

Please also advise - is the sort of post I should be putting on the forum or should I call the helpdesk?

This second screen grab shows how the SPL is going out of range on the lower graph and needs re-scaling.