Problem import/export impulse

[marcob9999]

Hi everyone

I'm starting to play with the latest beta version of REW in UBUNTU to generate phase correction filters in JRIVER.
I would like to generate a pulse to load into JRIVER to correct the phase of the signal
I thought of it like this...
I generated a response with 0dB amplitude and the phase I needed (fig1)

and I exported the impulse as .WAV with the settings of (fig2)

As a check, I imported the newly created .WAV file, and I expected a result equal to the initial response (fig1).
Instead I have what you see in (fig3): the level is at 121dB (!!!), and there are a lot of ripples...

What am I doing wrong???
Thank you very much for the help you want to give me... and sorry for my poor English (Google translator...)

 

[John Mulcahy]

When an IR is imported it is given the same SPL offset as a measurement, you can change that using the SPL offset control.

A phase adjustment IR response will be very sensitive to window settings, the default windows will not be suitable. You'll probably have to set rectangular windows spanning the whole impulse response.

The response was 48 kHz but was exported at 96 kHz, so there will be resampling effects at the high end.

 

[marcob9999]

Many thanks!!!

I'll try... hoping I can understand...