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Daqarta
Data AcQuisition And Real-Time Analysis
Scope - Spectrum - Spectrogram - Signal Generator
Software for Windows Science with your Sound Card! |
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The following is from the Daqarta Help system:
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Features:OscilloscopeSpectrum Analyzer Signal Generator
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Applications:Frequency responseDistortion measurementSpeech and musicMicrophone calibrationLoudspeaker testMusical instrument tuningAnimal soundEvoked potentialsRotating machineryVehicle pass-by noiseProduct testContact us about
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Timing Sine Modulator FreqMacro: TmModFreq If you select Sine as the Timing Modulation Source, this control sets the modulator frequency. As with most Generator frequency controls, its operation is affected by the Frequency Step setting. This defaults to Direct, with 1 Hz steps when you use the scroll arrows. There is only one Sine source that is shared among the Quant, Bias, and Shift modulators on any Stream, so changes in one dialog will change this value in the others in that stream. Although any that use the Sine source will have the same frequency and phase, you can use other frequencies (or waveforms) via Stream Modulation. Macro Notes: Use Quant., Bias., or Shift. prefixes in addition to channel and stream prefixes to specify the modulator for the TmModFreq command. For example, L.1.Quant.TmModFreq=10 will set Left Stream 1 Quant Modulator Frequency to 10 Hertz. TmModFreq=>1 will increment or TmModFreq=>-1 will decrement the current Modulator Frequency by 1 Frequency Step. Only +/-1 step is allowed per command, but the step size and type can be controlled via the Frequency Step dialog. Note: The Frequency Step setting affects the behavior of most Generator frequency controls. See also Timing Modulation, Random / Step Timing Dialog, Waveform Stream Controls. |
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