Recent content by user44455555

ah yes,i do again, db average show correct sorry for post.

please look at this screenshot. the RMS average seem correct, i ask the google KI .it seem the db average is not correct. I use a measure and let create rew a copy of that measure and shift it -20 db.. so we look at the point where the original have 80 db , the copy 60 db. RMS Average...

seem RMS average have problems with low frequency. here can see on a larger band(20 hz) problem of RMS average. I guess repeatet measure also use RMS average, because i notice that 4 measurements did increase on higher freq the SNR good, but on very low freq it increase very few the SNR.

for the german version i notice only very small character error. in some menus stand kalabr but correct is Kalibr. german word is very simular to english word. only 1. letter is K in german instead C . maybe you find places best when search for Kalabr. and replace with Kalibr I thought...

Hi I do left and right speaker measure and with RMS average the average calc is the same as with RMS+phase Avg and it look wrong in level, because it do not correct middle the dips. I use 1/48 resolution but the dips are large in 1/12 too I choose the menu in all spl RMS Average and RMS...

Hi in short: individual max boost react as a boost threshold and overall max boost is max amount of boost a dipin db if individual max boost is lower as a dip db then it do nothing. with individual boost 5 db the 68 hz dip and others at higher frequency is not boost and no filter is create at...

Hi I notice that it is possible when "Export a measure as txt" that i can load it as a room curve for the EQ to EQ that it correct to other speaker measure FR . Only the Target Level (db SPL) work setting diffrent. if my measure is around 67 db and i have target level set to 60 db in EQ the...

I also test diffrent windowing on loopback(no speaker only DSP) with a 30.7 hz 12 db Highpass with a 100 hz generator sine. No windowing(rectangle) shift 1. cycle to 102 hz which look precise and it have fast looking rise time. tuckey 0.25 shift frequency of 1. cycle to 115 hz . so i think...

I did not know how i can set a correct LF slope because, when i set it to 36 db per octave at 36 hz(speaker measure) the overall LF slope is in the range the SNR is good, more than the measured slope down, and only in the range the SNR is worse ok. maybe the LF tail can only use when signal is...

I find something strange in excess group delay A HP 12 db show near 0 excess group delay. but in compare to measure with a DSP HP12 BW EQ in measure the excess group delay double.see screenshot. group delay stay near same I measure from 0 hz the 45 HZ group delay and excess group delay. you...

Headphones work excellent with that stimulus. see screenshots and when you look at a acoustic kickdrum wave it is simular as this burst in bass. the attack click is played by the tweeter or mid range and tweeter (in 3 way systems) because is higher as 3 khz. kickdrum have a 2 cycle freq between...

thanks for your answer, please look also at my osciloscope screenshots what crazy stuff speakers do. this explain alot, wy group delay is negativ when the SPL of the begin of measure is 35 hz. the first 2 cycles are much faster as 50 hz in transient. can see clear in screenshot at 50 hz does...

thats really strange wy excess group delay output wrong values when start measure at 35 hz and measure have good SNR. Seem i need verify if group delay code work correct with burst measure and osciloscope to see if group delay show same diffrence as osciloscope measure with a burst at 35 hz and...

I notice that for correct excess group delay the begin of measure frequency (and end) need have a good SNR . so currently it is important to not use just 20-20 khz measure range. I notice at 35 hz is a good start point for the 5 inch speakers and larger And question is, is it possible to limit...

here is the confirm excess group delay change only very few with diffrent highpass frequency (to simulate bass lost) .And the most important thing, a big speaker with more bass should get less excess group delay than a small speaker. But my measures show the big speakers have more Excess group...