Support for the DIY speaker builder

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Posts: 1
Joined: Tue Nov 17, 2015 9:45 pm

can't see past 20khz in the graph

Tue Nov 17, 2015 9:51 pm

hi, I import an frd file but it only displays it up to around 20 khz even tho I scroll out all the way that still has the trace up to 20khz only

Is it a bug??
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Posts: 90
Joined: Thu Feb 21, 2013 1:16 am
Location: Canton, MA

Re: can't see past 20khz in the graph

Wed Nov 25, 2015 10:29 pm

It's not a bug, the program is limited to 20K for several reasons. One, I matched it to the original PCD spreadsheet. Two, going higher provides no benefit. As a crossover program, anything above 20K is not likely to be of much importance, if any, given audibility or lack thereof. Three, adding additional sample points increases the calculations in the program that tends to reduce responsiveness. I saw no need to go beyond 20K.


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