Intelix Psychologist User Manual page 13

Fig. 13. Correct Signal Balancing. This drawing shows the result of correctly following the system
balancing procedure detailed above. The input signal is in the range of +4dB to +26 dB. With the
Matrix attenuation controls set to -12dB the input signal is attenuated to -8dB. The resulting signal-
to-noise ratio is improved to more than 80dB. +20 dB or more input signal would give better than
100 dB signal-to-noise ration.
Audio
Source
+40 dB
+20dB
Input range: +4dB-+26dB
0 dB
-20 dB
SN = 90 dB
-50 dB
-90dB
Psychologist Mixer User Manual
Matrix
Mixer
Noise Curve
Psychologist Mixer User Manual
Signal Curve
Amplifier
SN = 80 dB
13