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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 Modulation SourceMacros: ModSrc, TmModSrc This button pops up a standard Modulation Source dialog. It allows you to select Sine (default) or any earlier stream or combination of streams for Stream Modulation. On Stream 0, Sine is the only option. On Stream 1, you also have the option of selecting Stream 0 as the source. Higher streams allow all lower streams, plus all combinations: Stream 3 allows 0, 1, 0+1, 2, 0+2, 1+2, or 0+1+2. Note that each Quant, Bias, or Shift modulator may have a different modulation source, but there is only one Sine source for each Stream. It is shared among the three dialogs, such that setting its frequency or phase in one dialog will change the corresponding value in the others. The Depth settings are independent. If you need a different Sine for each modulator, consider Stream Modulation. Macro Notes: Use Quant., Bias., or Shift. prefixes in addition to channel and stream prefixes to specify the modulator for the ModSrc command. For example, L.1.Quant.ModSrc=0 will set Left Stream 1 Quant modulation to use the output of Left Stream 0 as the modulation source. Possible values for ModSrc are:
Note that the chosen modulator must be available for the given stream, or else the macro will abort with an error message. Sine is always available, but only streams lower than the current stream may be used as modulators. See Stream Modulation for more details. If a Timing Modulator dialog is open, TmModSrc=1 opens its Modulation Source dialog, TmModSrc=0 closes it, and TmModSrc=x toggles between open and closed. Note, however, that you do not need to open the Modulation Source dialog to set its controls directly, as above. See also Timing Modulation, Random / Step Timing Dialog, Waveform Stream Controls. |
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