Pink noise, Linear pcm test signals – NTi Audio Digirator DR2 User Manual

Page 33

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33

Linear PCM Test Signals

Pink Noise

1

2

Characteristics and use

The Pink Noise test signal is characterized by flat amplitude
response per octave band of frequency (or per any other con-
stant percentage unit of bandwidth) up to its band limit; high
spectral density, an infinite period (> 100 years) and 20 kHz
bandwidth. Pink Noise is used as a reference signal for the
setup of loudspeaker systems (PA systems), with a Real Time
Analyzer (RTA) executing the required measurements.

When operated in the intermittent mode, Pink Noise also forms
the basis for reverberation time measurements.

Operation

You can choose between the following test signal modes with
the MOD setting

1

:

CONT : generates a continuous test signal.

: generates a intermittent test signal.

You can determine the cycle times of the intermittent signal
with the CYC setting

2

.

(3/3 = 3 seconds of signal and 3 seconds pause.)
These settings have no effect in the continuous mode.

Parameter

You can define the following parameters for this test signal:

Output level

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