TC Electronic BMC-2, User Manual, Page: 18 / 22

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Correctly calibrated REF level is essential for mixing.
Audio for different audiences requires different ranges in dynamics (please refer to the left-hand illustration below).
Without calibrated listening in the studio, you won’t be able to judge the dynamic range of a program/track reliably.
APPENDIX – CALIBRATED LISTENING
+24
+18
+12
+6
0 dB
-6
-12
-18
-24
-30
-36
-42
Dynamic Range Tolenrance
of a typical audio consumer
Headroom (peak)
Preferred Average
Noise Floor
Cinema Home Theatre Living Room Kitchen Bedroom iPod Car In Flight Entertainment
0
-6
-12
-18
-24
-30
-36
-42
-48
-54
-60
-66
Peak Level Normalization
Narrow Dynamic Range= Loud
Headroom (peak)
Preferred Average
Noise Floor
Cinema
Home Theatre
Living Room
Kitchen
Bedroom
iPod
Car
In Flight Entertainment