Recent content by Lex_audio

*** I replaced one of the interconnect cables, ground the computer and amplifier, and the amplitude of the noise decreased slightly. Thank you very much! You helped me a lot. I may have to revise my measuring complex. In any case, this will have a beneficial effect on the measurement accuracy...

*** Yes! I usually measure loudspeakers! Changing the window duration does not change the situation. And yes! This is a calibration, but if I do a normal amp measurement the waterfall looks the same. I see noises! Didn't think of disabling smoothing. By the way, when measuring the...

***Thank you for responding. Yesterday, after much trial and error, the situation improved slightly and now the defect starts at -25 decibels. Uploaded files. Look here please.

Good day, colleagues! Please comment on the amplifier measurement. I'm worried about the view of the waterfall. . Where does this "trapezium" come from? Broke my head! What am I doing wrong? Or which settings are not correct? Thank you! Oleg

***I saw it! Cool! I took another small step up to understanding the measurement results! Thank you very much! :

***Thanks for the quick response! I read! Some of it is not clear to me yet, but one of the indicators of the minimum phase is group delay. Right? On the graph, we can observe the frequency regions of NOT the minimum phase. Right? However, group delay is always present, Not big but present! How...

***Sorry John! :) Isn't that the same thing? It always seemed to me that if we remove the delay and move the beginning of the impulse response to time zero, then we get the minimum phase! Is not it? What am I wrong about?

Hello colleagues. :) I received a lot of information from you and now I need a little time to think about all the options and try. My friend has SoundEasy, and I made several measurements with him. Everything is simple there. We set up the microphone and measure tweeter and modbas from a common...

Thanks for the answer. All the necessary equipment I have. And there is a bit of experience. I do not understand what actions in the REV need to take to get the phase of the flight time. Now I get this kind of phase schedule. This is unacceptable.

Hello! Please, say Me. I need to isolate the acoustic phase to calculate the intersection of the loudspeakers. How can I do it? 1. I assembled the box and inserted the drivers into it. 2. I installed the microphone in front of the tweeter and took measurements from one microphone position. First...