11-May-2015, 06:55
(09-May-2015, 19:39)windler Wrote: Just want to share with you the results of room correction measurement between 7.1.1 to 7.1.3
The upper graphs are 7.1.1 and the lowers are 7.1.3
All this variation is just due to room and comb filter effects and other slight differences between the two measurements sessions. The measuring person may have been standing at a different spot and the microphone at the consecutive nine measurements with Dirac is likely to have been laterally and/or hight-wise differently placed; some centimeters are enough for comb filters to change. One shouldn't also forget that reproducing the same background noise level is near impossible. It would be enough for the fridge to start its compressor or a car passing by. I am working with Dirac myself and have been fighting with these problems. I am convinced that a firmware upgrade does not produce any effects on the room response.
