Genelec 9320A

9320 Reference Controller Operating Manual 37 (52)
After calibration, the SAM monitoring system sensitivity can be adjusted to be subjectively the same as
the headphone sensitivity by using the GLM system sensitivity setting. This enables smooth switching
between the outputs in 9320 without having to adjust the volume setting after the switch-over.
8.6 Level Alignment for Other Monitors
Monitoring loudspeakers from other manufacturers can be set up using the features built in 9320A.
These features are configured using the GLM software.
Sensitivity of a monitor explains how much audio output is generated for a certain magnitude of input.
The sensitivity of the monitors connected to the output in 9320 can vary between models.
The 9320 analogue and digital output gain adjustments enable the monitor sensitivity to be configured
the same as other devices, such as the headphones. This enables smooth switching between the
outputs in 9320 without having to adjust the volume setting after the switch-over.
8.7 Optimizing Signal-to-Noise Ratio
8.7.1 Input Level Optimization
The input level trims in the 9320 I/O configuration section as well as the Analog Input Sensitivity range
selection (12 or 24 dBu maximum) enable optimization for the best signal to noise when interfacing to
audio source equipment. The principle is that the source equipment should use large output signal into
9320A. This is particularly important when connecting analogue source devices.
8.7.2 Analogue Audio
The sensitivity of the monitor system can be adjusted using the GLM software. It is advantageous to
keep the incoming signal level high and to lower the level in the monitor using the GLM level control to
maintain highest digital resolution. Frequently, the best signal-to-noise ratio can be obtained when the
GLM volume setting is set to -10 to -15 dB when the analogue input is controlled in the mixing console.
8.7.3 AES/EBU Audio
For a digital –30 dBFS input 9320 Reference Controller produces 100 dB sound level (SPL) at 1 m in
free space when the volume is set to the maximum (0 dB). The sensitivity of the monitor system can be
adjusted by the volume setting in the GLM software.
After calibration, the SAM monitoring system sensitivity can be adjusted to be subjectively the same as
the headphone sensitivity by using the GLM system sensitivity setting. This enables smooth switching
between the outputs in 9320 without having to adjust the volume setting after the switch-over and also
improves the system sign-to-noise ratio.
8.8 SPL Display and Sound Exposure Logging
Several occupational safety standards exist for assessing the personal noise dose. The GLM
configuration allows selection of the standard to apply in noise dose calculation. Typically, the noise
dose calculation is set according to the local national standards.
The measurement microphone sensitivity is automatically configured once the correct Genelec
microphone serial number is set. This loads the calibration data into the 9320 to enable accurate SPL
display.