Kruppy
Well-known member
Well, after months of himming an hawing about learning how to do it and then actually playing around with the software, I've finally run some frequency sweeps through my system with the Room Eq Wizard that I down loaded from the Home Theather Shack (Thanks Sonnie!).
I'm not quite sure what to make of them yet and I'm hoping for some comments from our members with more experience than me (JonFo where are you!).
Set up: Room Eq Wizard (free) run off of my IBM work laptop, SoundBlaster MP3 external sound card (~$20) and my RadioShack analog SPL meter (~$45). The SPL meter was aimed in-between the speakers, I've been told that the accepted way is to have the meter at a 45 deg angle upwards, so I'll have to run another sweep when I'm able.
Levels were set to target 75 dB.
From what I understand or have been told is that the RadioShack SPL meter is good up to about 5k Hz. Notice on my graphs the peak and then drop off at the higher frequencies. I have know idea how accurate these results are.
I'm looking for as any advice/comments.
One other thing to note: The first graph uses 1/3 octave smoothing (which I've been told tames the reflections and comb filtering, the graph without smoothing is really messy in the upper frequencies). The second graph from 15-200Hz does not utilize the smoothing feature.
I'm not quite sure what to make of them yet and I'm hoping for some comments from our members with more experience than me (JonFo where are you!).
Set up: Room Eq Wizard (free) run off of my IBM work laptop, SoundBlaster MP3 external sound card (~$20) and my RadioShack analog SPL meter (~$45). The SPL meter was aimed in-between the speakers, I've been told that the accepted way is to have the meter at a 45 deg angle upwards, so I'll have to run another sweep when I'm able.
Levels were set to target 75 dB.
From what I understand or have been told is that the RadioShack SPL meter is good up to about 5k Hz. Notice on my graphs the peak and then drop off at the higher frequencies. I have know idea how accurate these results are.
I'm looking for as any advice/comments.
One other thing to note: The first graph uses 1/3 octave smoothing (which I've been told tames the reflections and comb filtering, the graph without smoothing is really messy in the upper frequencies). The second graph from 15-200Hz does not utilize the smoothing feature.
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