Signal types
Pink noise
Pink noise is a random signal with an amplitude falloff inversely proportional to frequency. This is the most commonly employed variety noise in audio measurement, as it a constant-energy perceived content.
White noise
White noise is a random signal with constant energy across the audio range. Compared to pink noise, it sounds much brighter as it has more energy in high-frequencies. Commonly employed for electronic apparatus measurements.
Sine
Fixed-frequency, pure tone generator.
Sweep
Generates a variable tone from start to end frequencies. Linear and logarithmic variants are available. Log. sweep is best suited for audio measurements as this corresponds to constant time per octave.
Controls
Type
Sets the signal type to generate.
Level
Output level of the waveform, expressed in dB RMS.
Enable
Toggles signal generator output on and off.
Setup
Output
Selects the hardware output(s) to which the signal generator should be routed. Set to? None? to disable the signal generator output entirely.
Output 1
First generator output.
Output 2
Second generator output.
Both signals sent to the hardware output channels are identical.
Feed input reference
Fed the reference input (default input 1) with the signal generator.
Sine frequency
Sets the frequency of the sine generator, only applicable when the signal type is set to Sine.
Sweep start/end frequencies
Sets the range of frequencies to sweep.
Reverse start and end frequencies to obtain reverse sweep.
Sweep length
Sets the overall duration of the sweep in seconds,i.e. the time taken to go from start to end frequency.
Level
Generator output level in dB RMS.