Hello,
I am worried for my front right speaker or front right test signal. I'd like to know if it is nothing or if I have a real issue.
I performed a Dirac Live stereo calibration with NanoAVR-DL when I remarked that the curve of the right channel was very different in the low fr than the curves I was used to get with REW since many months now.
For REW measurements, the hdmi output from the laptop is connected to video 3 input in the receiver and I think that the test signal comes from the laptop via rew software.
For Dirac, hdmi output from nano is connected to video 1 in the receiver. All others settings are the same (2 channels PCM, no sub, speakers to large, no EQ in the receiver, no xover) As you know, for Dirac, the source bluray must send a video active signal and is setted to PCM With Dirac is the test signal coming from the laptop via usb cable or is it already encoded somewere in nano, I don't know.
Of course, the mic remains at is first position for rew measurements.
Dirac gives average 9 positions but it seems irrelevant to me for my purpose.
Here is front right Dirac:
And front right from REW:
To see my problem here is the left from dirac:
And the left from REW:
In REW I see what I think that it is the roll-off limits of my left B&W (approx 45 hz) BUT I do not see it in Dirac for the right speaker.
I was afraid that I had burned a speaker. (see my journey to install Dirac !! I am still a little bit scared about that)) So I reverse left speaker to right position and right to left and remake measurements.
I got the same (more or less) curves.
Do I have reasons to be worried? Is it a problem with Dirac software? Or is it nothing to worries about.
Thank again for your help and patience.
View attachment few g ddirac.mdat
I am worried for my front right speaker or front right test signal. I'd like to know if it is nothing or if I have a real issue.
I performed a Dirac Live stereo calibration with NanoAVR-DL when I remarked that the curve of the right channel was very different in the low fr than the curves I was used to get with REW since many months now.
For REW measurements, the hdmi output from the laptop is connected to video 3 input in the receiver and I think that the test signal comes from the laptop via rew software.
For Dirac, hdmi output from nano is connected to video 1 in the receiver. All others settings are the same (2 channels PCM, no sub, speakers to large, no EQ in the receiver, no xover) As you know, for Dirac, the source bluray must send a video active signal and is setted to PCM With Dirac is the test signal coming from the laptop via usb cable or is it already encoded somewere in nano, I don't know.
Of course, the mic remains at is first position for rew measurements.
Dirac gives average 9 positions but it seems irrelevant to me for my purpose.
Here is front right Dirac:
And front right from REW:
To see my problem here is the left from dirac:
And the left from REW:
In REW I see what I think that it is the roll-off limits of my left B&W (approx 45 hz) BUT I do not see it in Dirac for the right speaker.
I was afraid that I had burned a speaker. (see my journey to install Dirac !! I am still a little bit scared about that)) So I reverse left speaker to right position and right to left and remake measurements.
I got the same (more or less) curves.
Do I have reasons to be worried? Is it a problem with Dirac software? Or is it nothing to worries about.
Thank again for your help and patience.
View attachment few g ddirac.mdat