Test-tone Generator
Each Base Device on the NEXUS system includes a test-tone generator
that can be applied to all analogue inputs via a separate bus. The generator signal
is also fed to an additional digital bus.
The following settings can be made by the user:
- Level: -34 to 6 dBu (direct access, adjustable in 1-dB steps)
- Frequency: 20 Hz to 20 KHz (adjustable in 1-Hz steps) plus typical
fixed frequencies
- Shape: The generator can also be used as a noise generator
offering the choice of white and pink noise as well a sine wave.
The test-tone generator can be used for calibrating installations
or rooms as well as for troubleshooting purposes. The generator produces
a standard-level signal for calibrating or comparing input signals.
In addition, it generates an internal signal that can be used for troubleshooting
the NEXUS system or verifying the settings.
Due to the sophisticated generator structure (digital generator,
D/A converter, analogue generator bus, extra digital bus), the
critical
A/D-converter components are integrated into the signal path.
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