Mic placement

Hi Ben, 

Thanks for the post and apologies for the slow attendance on our side! 

I'm assuming you've already figured this out but just in case anyone else is wondering - this question is addressed in-depth in this article: Speaker distance measurements: midrange drivers

Hi :-)

The KALI IN-8 V2 is a three-way monitor with one LF driver and a single concentric coaxial midrange and tweeter. When the ref mic is placed as instructed at the very beginning of taking measurements it is then aimed directly at the tweeter located in the center of the midrange driver - again, there is no separate midrange driver and separate tweeter. Cross-over points are: LF to mid at 280Hz and mid to HF at 2800Hz.  How should the ref mic be placed for the initial close measurement in this situation? What would you recommend? Thank you very kindly for your insight and assistance :-)

Eric Riddell

Hi Eric Riddell, thanks for reaching out!

Please try pointing the mic to the center of the top mid-range driver and tweeter, the locating signal is set to 1 kHz frequency, so this should cover it. Perhaps you can also try changing the locating signal type to B and C in the Measure app's 'Preferences' in case there is some trouble during this step (there is a 'Preferences' option in bottom left corner of the Measure app). 

Zane,

Thank you very kindly for your advice! 

Tavai veselībai and Cheers, Eric :-)

Is there ever gointo be an expanation of what exactly choosing option “B” or “C” in mic measurementswwill change in the outcome of mic measurements? I mean. exactly how would one know to usethe other options of measurement?

Ben

^ It uses different sounds to make the measurement that will help with overly lively or dampened rooms.

So, which one is for lively and which one is for dampened?

Ben R. Johnson the default A locating signal is 1Kz, and it will work in 99% of the rooms/scenarios out there. 

If for any reason 1Kz is particularly problematic/resonant in your room and the software is having trouble locating the mic, then you can switch to the alternative B or C signals, which are based on slightly lower frequencies (below 1Kz). However, you shouldn't be worried about it for two reasons:

1. The mic locating signal doesn't have anything to do with calibration accuracy. If the software can detect and follow the mic location okay, then all is good. Changing the locating signal to B or C will not make any difference. In fact, it can even do the opposite and make it harder for the software to locate the mic.
2. If you are actually encountering an issue where the software is unable to locate the mic (AKA “jumping mic” on the screen), then the issue is most likely caused by sample drift, panning, or other culprit in the signal chain (more on that here: Speaker measurement troubleshooting guide).

In other words, using the B and C locating signals applies to a small amount of edge cases only. You shouldn't expect any different results using them, and shouldn't even try them unless you actually have a mic locating issue (AND have already exhausted all other troubleshooting suggestions for the problem, as it tends to be caused by something else instead).