- Thread Starter
- #21

So still experimenting but have a new question if anyone has any theories...

I'm trying to arrive at a system of measurements that is consistent time and time again so i was interested immediately when i read about the moving mic method.

To test it out i first did a set of static microphone measurements, averaged that and set it aside. Using all the same gain settings I then ran RTA using the settings below and noticed that while the pattern is similar, there is a ~20 db difference between the two. I tried this several times w/ the same result. My assumption would be they would be close to each other, perhaps even identical (ideally). What would account for that difference? The results just factor the Left speaker. The bottom plotted line is the moving mic measurement , the top is the static..

I'm trying to arrive at a system of measurements that is consistent time and time again so i was interested immediately when i read about the moving mic method.

To test it out i first did a set of static microphone measurements, averaged that and set it aside. Using all the same gain settings I then ran RTA using the settings below and noticed that while the pattern is similar, there is a ~20 db difference between the two. I tried this several times w/ the same result. My assumption would be they would be close to each other, perhaps even identical (ideally). What would account for that difference? The results just factor the Left speaker. The bottom plotted line is the moving mic measurement , the top is the static..