Daqarta
Data AcQuisition And Real-Time Analysis
Scope - Spectrum - Spectrogram - Signal Generator
Software for Windows
Science with your Sound Card!
The following is from the Daqarta Help system:

Features:

Oscilloscope

Spectrum Analyzer

8-Channel
Signal Generator

(Absolutely FREE!)

Spectrogram

Pitch Tracker

Pitch-to-MIDI

DaqMusiq Generator
(Free Music... Forever!)

Engine Simulator

LCR Meter

Remote Operation

DC Measurements

True RMS Voltmeter

Sound Level Meter

Frequency Counter
    Period
    Event
    Spectral Event

    Temperature
    Pressure
    MHz Frequencies

Data Logger

Waveform Averager

Histogram

Post-Stimulus Time
Histogram (PSTH)

THD Meter

IMD Meter

Precision Phase Meter

Pulse Meter

Macro System

Multi-Trace Arrays

Trigger Controls

Auto-Calibration

Spectral Peak Track

Spectrum Limit Testing

Direct-to-Disk Recording

Accessibility

Applications:

Frequency response

Distortion measurement

Speech and music

Microphone calibration

Loudspeaker test

Auditory phenomena

Musical instrument tuning

Animal sound

Evoked potentials

Rotating machinery

Automotive

Product test

Contact us about
your application!

Timing Sine Modulator Freq


Macro: 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.

The frequency resolution of this and all Generator frequency displays may be set between 0 and 9 decimal places via the Frequency Places option in the Frequency Step Mode dialog, invoked by clicking the button below this. (The button shows the current Step Mode, which defaults to Step Direct.)


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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