![]() This should give pink noise that falls off at approximately 3dB Pink (1/f) noise is generated by an algorithm that sums white noise from successive octaves. To get noise and no waveform, set the waveform amplitude and bias both to 0%. Therefore the amplitude you can select will be The total amplitude (Bias + Amplitude + Noise Amplitude) has to be 100% or less. The White or Pink buttons will become highlightedĭepending on the type of noise to be added to the signal.ĪMPL Set the amplitude of the noise. White or pink noise can be added to the output signal by pressing white or pink in this section. Frequency will be limited to the time it takes to burst the set Button only available if repeat burst mode selected. Count can be any integer from 1 to 10000.įREQ Select repeat frequency of the burst. Button only available if single or repeat burst modes selected. Button will be highlighted in orange if selected.ĬOUNT Enter the number of waveforms to burst. Button will be highlighted in orange if selected. ![]() ![]() Bounce mode will sweep up, then sweep back from end to start over the same duration and repeat indefinately. Repeat will just start the sweep again from the start once the end is Single>Hold, will hold the waveform end value once the sweep is completed. Single>off, will put 0 amplitude onto the output channel once the sweep isĬompleted. MODE Select either Single>Off, Single>Hold, Repeat or Bounce modes. TIME Select the duration of the sweep in seconds. STOP Select the stop frequency(or amplitude) of the sweep. START Select the start frequency(or amplitude) of the sweep. Button will be highlighted in orange if selected.ĪMPL Select amplitude sweep mode. Sweep Buttons are only available if not using Burst or Modulation features.Įither the frequency or amplitude can be swept.įREQ Select frequency sweep mode. 50% is for a triangular waveform with equal rise and fall times. The skew is defined here as the % rise time and is a percentage between 0 and 100%.Ġ% corresponds to a falling saw wave and 100% a rising saw wave. Note that the total amplitude (Bias+Amplitude+Noise Amplitude) will be kept to 100% or less.ĭUTY/SKEW Set the duty (% high time) for a square wave or the skew of a triangular wave. If your device hardware has a high pass filter it may block low frequency and DC signals and bias may not have any effect.ĪMPL Set the amplitude of the waveform as a percentage of maximum allowable output. Note that the total amplitude (Bias+Amplitude+Noise Amplitude) will be kept to 100% or less. If in sweep frequency mode, this button is disabled.īIAS Set the bias of the waveform as a percentage of maximum output. Used that are required to be out of phase.įREQ Set the frequency of the waveform from 1mHz up to 22kHz. This is useful for when two channels are being PHASE This will set the offset phase of the waveform and has a & Modulation boxes will apply to the selected channel only.Įither sine, square or triangular waveforms can be selected with the 3 buttons on the left of this section. All button presses in the Waveform, Sweep, Burst, Noise The selected channel will be highlighted in orange. The Edit box on the upper left side of the screen allows the channel to be selected. The app will restrict changes to these values so that this is the case.įollowing is a longer explanation of all the controls. The sum of Bias + Amplitude + Noise Amplitude and has to be 100% or less. Therefore this is for fun/educational use,įor critical applications use a real calibrated function generator. At high frequencies, the waveforms will beĭistorted due to limited number of samples for each waveform (for example at 4.41kHz,Ī sine waveform will be approximated by only 10 points). Out the DC bias and low frequency signals. Output will depend on your device hardware.
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