Hey Chris how are you doing? I have a question,
Today i measured the volume levels of my speakers with a Voltcraft SL100 digital spl meter. It was set on slow and C weighted and tried too set all speakers too 75db.
These where the measurements of Audyssey:
Fronts L+R: -10.5 , Center: -12, Surrounds: -8.5 and subwoofer: -1.
With the SPL meter i got other values ( was sitting at the exact location where the microfoon was ):
Fronts L+R: -7.5 , Center: -9, Surrounds: -7.5 and subwoofer: -1.
So witch values are more accurate? I dont know what class the audyssey mic is but the volcraft is a class 3, accuracy ± 2 dB (94 dB/1 kHz, delay 125/1000ms
You should use whichever method you trust more.
I dont know witch too trust. How accurate is the standard audyssey mic? Is it also a class 3 mic or class 1?
Classes are only relevant for SPL meters. The Audyssey mic is a measurement microphone. The method of measuring SPL also matters. SPL meters use RMS and Audyssey uses a psychoacoustic weighting. SPL meters are not very accurate for subwoofer levels. I suggest you go with the Audyssey findings.