I've tried any possible position and this is the best result, 8330 is 50cm from the back wall, is such a correction recess correct?
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Is this calibration normal?
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Hi! I would indeed try to find a better placement. Bring the speakers very close to the back wall (5 to 10 cm). The cancellation can then be caused by side walls and especially floor/ceiling as well. What is your listening distance? You should place yourself in the front third of the room. Change also the height of the speakers and do a GLM measurement to compare results. Here is a very good calculator for destructive reflections: http://tripp.com.au/sbir.htm
And of course check your room modes with this calculator, in case your listening position should be optimised: https://amcoustics.com/tools/amroc
Greetings!
My auditory habit is an equilateral triangle of 1.3 meters, my room is a square, 3.47 meters long, 3.56 meters wide, and 2.64 meters high, I have another problem, which is that the two sides of the listening position in my house are filled with IKEA wardrobes, so that the width is only, 2.24 meters. When I am measuring, do I enter the width of the room dimension to be 3.56 meters or 2.64 meters?
I've put the speaker against the wall (actually a window) before, and it's a 1.5-meter equilateral triangle, which also has a low frequency and a depression, which sounds a bit far away to me, and, I think the phase is a little weird, it seems to be a little offset, and now it's 1.3 meters, and there are some slight improvements, my previous speaker is a high-power three-way speaker, and the pan positioning is very strong, and the center positioning is in the middle, so you don't have to doubt it.
To add,After calibration, my left speaker-0.8db,I don't know if it's the auditory deviation caused by this reason,I manually changed it to-0.1db,The sense of positioning is better,Compared with the previous speaker,Still lack the sense of authority that is absolutely centered。
Could you please share a GRADE report? This would make it way easier to evaluate the situation. Which speakers did you use before? Was this in the same room? Greetings!
It's a cloakroom, and even if GRADE is provided, it won't change anything, because I can't decorate, can I understand that? I'm doing the mix here after I'm done recording in the studio. So doesn't it make no sense for me to waste a GRADE for the sake of the cloakroom? I can't change the mission of this room to pack clothes.
I used to use ADAM A77X, which is the black object in the lower right corner of the picture, and the position is about the same.
I followed your advice and moved the 8330 closer to the front wall, leaving a 10cm gap between the speaker and the front wall. This is the image that was just measured. What do you think?
The listening position is 1.5 meters away from the speaker
Hi Yongpan! You're asking for advice about room acoustics and interaction with speakers. That's why a ask for a GRADE report. Because this is what it was made for. So it's never wasted to create one. Btw - at the moment it is still free of charge. Especially the right side still looks a little critical. You can of course mix on this system. As you say - it's a cloakroom. ;-) Replying to your original question: "Is this calibration normal?" - Yes, for a cloakroom it is. For any more detailed information, for example what could cause problems with the imaging, I need the GRADE report. Greetings!
I seem to have found the cause of the problem, The speaker on my right has a delay of about 0.05ms relative to the speaker on the left, when I increase the speaker on the right by about 0.05ms, the pan in the center sounds in the middle, I am close monitoring, so I feel that the impact of the room is not so big, and I have used other speakers, there is no problem, I did an experiment, 1k sine wave, in the listening position, move the head back and forth, the left and right ears are alternating volume changes, this is not normal, this is in the state of no calibration, I increased the delay by 0.05ms, it seems to improve some, but the frequency response still seems to be different, what should I do?
Time of flight should be 0 for both speakers in a regular stereo setup. Just edit it manually. You can also change the gain if needed until a mono signal is precisely in the middle. The speakers have a different frequency response because of the room influences. Greetings!
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