In this video, we’re going to talk about the Signal Generator object. The Signal Generator can be found in the Virtual view, under the Tools section of the Virtual Library.  The signal generator can be used for general testing of an audio system or very specific compliance and certification tests. In this configuration that’s already deployed and live, I’ve got the signal generator factory panel already pulled up with a dynamic meter pinned so we can see the various changes that we can make to the signal generator. 
The noise type is selected using the radio buttons. If we select the Pink Noise option, we’ll see dynamic meter light up, showing us that energy distribution that’s characteristic of pink noise. There’s also White Noise, with more even energy across the spectrum. And finally, a Sine Wave option. The frequency can be selected using this knob or by typing the value in directly below. 
The Sine Sweep mode will sweep the sine wave frequency between a start and end frequency.  Duration is how long it will take for the sweep to happen. The sweep can be looped using this drop down and there’s two types of loops. “Start to End” which will loop starting back at the start frequency after each cycle, or “Warble”, which will go from the start frequency to the end frequency, then go back down to the start frequency in reverse. Let’s see the “Warble” in the meter. Notice how in the meter, the signal appears to go quicker at the start frequency. This is the effect of the mode selection for the generator. When set to the Logarithmic, or Log mode, the sweep goes quicker at the start frequency and slows down towards the end frequency. If we switch this to Linear, then it will be a constant velocity as it goes from start to end. Let’s see the Start to End loop type for reference. On the right side of the factory panel, there’s a mute button for the signal generator output, as well as a gain for adjusting the level of the signal.