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!

Trigger Toggle From Dialog

Controls: Trigger Dialog >> Trigger
Macro: Trig

This button duplicates the Trigger button on the toolbar. You can activate both with ALT+T. When Trigger is active, Daqarta waits to display data until the selected trigger criteria are met (Slope, Level, Source, etc.).

You will probably want to run in Triggered mode while viewing repetitive waveforms, since for most sample rates they would otherwise roll by too fast to see.

Triggering typically makes no significant difference for a Spectrum display.

When the Single button below Trigger is active, the Trigger button changes to Trig Arm. Each time you hit Trig Arm, it stays active only until a trigger event is found; then the next frame is acquired and the display is Paused.

Note that Pause mode only halts the display; Generator output continues unaffected, as does any DDisk recording in progress.


Macro Notes:

Trig=1 activates Trigger mode, Trig=0 turns it off, and Trig=x toggles between on and off.


See also Trigger Toggle - Introduction, Trigger Control Dialog

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