Hi Steve, We did and we didn't find the noise. We determined the noise was in the rear axle/suspension support frame, although we were never able to identify the root cause. But we did find out that after the frame was returned to GM Holden Engineering they found a broken spot weld. The replacement ...

For anyone wondering about Multiple Microphones, I have experimented with a Chassis Ear/Oscilloscope Hybrid set up. I use'd the Oscilloscope rather than the NVH PlugIn. But I was chasing a squeak in the rear end of a car that was difficult to reproduce in the workshop but was relatively easy to repr...

Hi MIke,
I downloaded the newest stable and beta versions and have tried both this morning, but I'm still having the same issue when trying to start an new NVH test session. I will attached the trca files from both attempts.
Regards,
Mark.

Hi Steve, Thanks for the help, every little bit of knowlege gained helps. I did move the mic during the capture, just to see if there was any improvement in the signal. I didn't have an RPM signal as it was this car that I started experimenting with the Bluetooth ELM327 Adapter. I'm not sure I'll ge...

Hi Steve, I did attach that file in my original post and The pddata file appears to be there in the original post as a 3.36Mb attachment. I'll attach it here again anyway. The pddata file was captured with the accessory drive belt removed, the noise is similar to a squeaky drive belt so that was our...

Hi Steve, Ok, so I don't know what I've done differently from the other day when I tried this, but when I tried it today it worked Ok, no problems, dead easy. I'm using a Windows 7 machine and a non-beta version of the Diagnostic Software. I'll attach Docs below for you to look at. I was able to con...

Thanks Steve,
That makes much more sense now. It's so cool that it can all be tied together so well.

Is it possible to use a Bluetooth ELM 327 Device for RPM data when using the Diagnostic Software. I paired my Bluetooth ELM327 device with my PC and the PC allocated the Bluetooth device a COM Port (COM Port 6). The diagnostic software would search for the device. It would then find it but very quic...

Hi Guys, Still trying to get my head around noise diagnosis using the NVH tool. So I've got a V6 with an engine noise, that I suspect might be from the Camshaft. I wanted to use the software to analyse the noise and try to tie it to the engine frequency. I suspect the noise is showing up at around 6...

Ok, The Scope I'm using is a 4223. Serial No. AU657/305. I've attached the Direct X Diagnostic Results, hopefully that will give you all the info. you might need about my machine. Thx. I've discovered that I can load Saved NVH Files and the NVH PlugIn seems to cope with that ok, it only seems to be ...