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!

Juxt Trace Memory Array

Controls: File Menu >> Juxt Dialog
Macro: JuxtDlg

Pro-license or trial users can save up to 99 traces to the Juxt (short for "Juxtapose") memory array for easy comparisons. Either newly-acquired traces or file data may be used, in any combination.

Traces may be recalled individually or viewed as an array. Array traces may be labeled and/or sorted according to the contents of designated Fields, and displayed in ascending or descending order with adjustable spacing. You may also choose to Hide any unwanted traces, such as to simplify comparisons.

The entire Juxt memory may be saved or loaded as a composite file with a special .JXT extension, or selected traces may be saved as normal individual trace files.


Juxt Array Usage - Quick Guide

In a typical application, you acquire a trace, Pause, and hit the Juxt New button to save it. (Or hit ALT+J to save directly, without a separate Pause step.) Then you change some test parameter (loudness or frequency, say) and acquire and save another trace. Toggling the Array button on will show all the saved traces on the screen at once.

Using the mouse, you can adjust the spacing between the traces by holding the ALT key and dragging them apart or together, and adjust the overall vertical position by holding the SHIFT key and dragging the array up or down the screen.

Measurements can be made on an individual trace by selecting it with a left click. That trace will be highlighted, and all the cursor readouts, Notes, Labels, Fields, and dialog settings like total averager frames will pertain to that trace.

To alleviate clutter and simplify comparisons, CTRL plus a left click on any trace will cause it to be hidden. The Show button will show all the traces, with the formerly-hidden ones shown dotted. CTRL-clicking on any trace will then toggle between hidden and normal, so you can choose different traces to be compared and then toggle Show off again.


Juxt Array Dialog

CTRL+J opens the Juxt Array dialog with the following controls:

Note that the Just Array dialog may not be opened during DDisk recording, though you can still save traces to the array... you just can't review them or save the array to a file until the recording is complete.

Note also that once you open the dialog and display one or more traces (via the Array or trace select buttons), you must toggle them off before you can unPause to return to active data display.


Macro Notes:

JuxtDlg=1 opens the Juxt dialog, JuxtDlg=0 closes it, and JuxtDlg=x toggles between open and closed.

Note that you do not need to open this dialog to change most of its controls directly via macro command, as long as they are enabled.

GO:

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