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!

DDisk Write Triggered Start

Controls: DDisk Dialog >> Triggered Start
Macro: DDiskTrig

When the Triggered Start button is active, DDisk recording does not start as soon as you hit the Record button or INS key, but waits until the next Trigger event arrives. (The button will appear to go down and bounce back up, then after the Trigger it will automatically go down and show the red 'recording' square.)

You can use this with PreStart to start the recording a specified interval before the trigger event.

Triggered Start is especially useful with Trigger Mode set to Normal (so the system will wait indefinitely for the trigger event) for sound-activated recording.

You can also use it with Normal or Gen Sync mode to capture a Generator waveform that starts at a defined point on the wave. This is a convenient way to create specialized Arb Wave files; see Creating Arb Files with the Generator.


Macro Notes:

DDiskTrig=1 sets Triggered Start mode, DDiskTrig=0 cancels it, and DDiskTrig=x toggles the current mode.


See also Direct-To-Disk (DDisk) Toggle, DDisk Controls Dialog

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