how to make sense of these types of graphs

[nauc 10+ year member]

Click to read more...

 

[nauc 10+ year member]

i understand the left side and bottom... dbs and fq but whats the right side indicate

 

[nauc 10+ year member]

bump......................

 

[kuijo 10+ year member]

milliseconds? Its the graph over a period of time, and since its not a static signal it'll be in 3d.

 

[swc204 10+ year member]

millisecond's iirc

http://www.diymobileaudio.com/forum/showthread.php?t=30

 

[helotaxi 5,000+ posts]

Its a waterfall or decay plot. It shows resonances in the speaker itself. Basically it tells you how long after the speaker stops getting a signal that it quite making sound. That particular graph shows a pretty big resonance at 150Hz (not at all uncommon) another one in the 30-40 Hz range (again pretty common) and a huge response peak in the 500Hz range. The 150hz and 500Hz res are products of cone breakup and will get killed by the lowpass crossover.

 

[noob with an RS 10+ year member]

what i find interesting is that i have those two peaks (150 and 500 hz) set to like negative 12 db on my eq.. i do this to achieve a flat RTA response.. can someone go further in details.. should i deaden to rid of this??

 

[nauc 10+ year member]

millisecond's iirc
http://www.diymobileaudio.com/forum/showthread.php?t=30

Originally Posted by DanWiggins

2. Transient response IS frequency response. The two are the same thing. Take the transient response, run it through the Fourier transform, and you get frequency response. Take frequency response, run it through the inverse Fourier transform, you get transient response. You cannot talk about one without implicitly talking about the other!

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if thats true, why does the signal drop off a lot faster at around 500hz compared to around 150hz that almost goes to 50msec

 

[helotaxi 5,000+ posts]

what i find interesting is that i have those two peaks (150 and 500 hz) set to like negative 12 db on my eq.. i do this to achieve a flat RTA response.. can someone go further in details.. should i deaden to rid of this??

You have interference issues. Have you tried time alignment?