3M BK4936 Microphone User Manual


 
Page iii
053-469 RevC
SoundPro models SE and DL Data Addendum
Self Generated Noise __________________________________________________________________________ 82
Table C.12- Broadband ___________________________________________________________________________ 82
Table C.13 - Octave Band __________________________________________________________________________ 82
Table C.14- 1/3 Octave Band _______________________________________________________________________ 86
QE7052 microphone using remote preamp (Figures/Tables “D”) ___________________________________ 92
Directional frequency response using remote preamp with Z weighting ____________________ 92
Figure D.1 - 0-30 degree incidence angles _____________________________________________________________ 92
Figure D.2 - 0-90 degree incidence angles _____________________________________________________________ 93
Figure D.3 - 0-150 degree incidence angles ____________________________________________________________ 94
Figure D.4 - 0-180 degree incidence angles ____________________________________________________________ 95
Random Incidence ____________________________________________________________________________ 96
Figure D.5 - Frequency Response ___________________________________________________________________ 96
Corrections ____________________________________________________________________________________ 97
Table D.6 - Reflection, Diffraction, Microphone Frequency Response, and Windscreen Corrections _______________ 97
Table D.7- Pressure to Free Field Corrections _________________________________________________________ 98
Table D.8 - Pressure Field to Random Incidence Corrections ______________________________________________ 98
Self Generated Noise __________________________________________________________________________ 99
Table D.9- Broadband ____________________________________________________________________________ 99
Table D.10 - Octave Band__________________________________________________________________________ 99
Table D.11- 1/3 Octave Band ______________________________________________________________________ 103
QE7052 microphone using windscreen & remote preamp (Figures/Tables “E”) ______________________ 110
Tolerance: IEC 61672 class 2________________________________________________________________ 110
Directional Frequency Response with Z weighting __________________________________________ 110
Figure E.1 - 0-30 degree incidence angles ____________________________________________________________ 110
Figure E.2 - 0-90 degree incidence angles ____________________________________________________________ 111
Figure E.3 - 0-150 degree incidence angles ___________________________________________________________ 112
Figure E.4 - 0-180 degree incidence angles ___________________________________________________________ 113
Random Incidence ___________________________________________________________________________ 114
Figure E.5- Frequency Response ___________________________________________________________________ 114
Corrections ___________________________________________________________________________________ 115
Table E.6- Reflection, Diffraction, Microphone Frequency Response, and Windscreen _________________________ 115
Table E.7- Reflection, Diffraction, Microphone Frequency Response, and Windscreen _________________________ 116
Table E.8 - Pressure Field to Free Field Corrections ___________________________________________________ 117
Table E.9-Pressure Field to Random Incidence Corrections ______________________________________________ 117
Self Generated Noise _________________________________________________________________________ 118
Table E.10- Broadband ___________________________________________________________________________ 118
Table E.11 - Octave Band _________________________________________________________________________ 118
Table E.12- 1/3 Octave Band ______________________________________________________________________ 122
Table E.12- (Continued) __________________________________________________________________________ 128
BK4936 microphone (Figures/Tables “F”) _____________________________________________________ 129
Directional frequency response using side toward speaker ________________________________ 129
Figure F. 1- 0-30 degree incidence angles ____________________________________________________________ 129
Figure F. 2- 0-90 degree incidence angles ____________________________________________________________ 130
Figure F. 3 - 0-150 degree incidence angles ___________________________________________________________ 131
Figure F. 4 - 0-180 degree incidence angles (IEC 61672 class 1) ___________________________________________ 132
Directional frequency response using face toward speaker ________________________________ 133
Figure F.5 - 0-30 degree incidence angles ____________________________________________________________ 133
Figure F. 6 - 0-90 degree incidence angles ____________________________________________________________ 134
Figure F.7 - 0-150 degree incidence angles ___________________________________________________________ 135
Figure F.8 - 0-180 degree incidence angles ___________________________________________________________ 136
Random Incidence ___________________________________________________________________________ 137