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!

Macro Comments

You may add comments to a macro definition, in order to document what it is doing, or to temporarily disable certain commands. A comment is any text that appears after a semicolon, for the rest of that line. If a line begins with a semicolon, the whole line is regarded as a comment:

    ;Set Left Stream 0 Tone Freq to 1000 Hz:
    L.0.ToneFreq=1000 ;This is the line that does it.

You can disable multiple lines using an extended comment. Begin an extended comment with a line starting with a semicolon, immediately followed by one or more '+' signs. After the last macro line to be disabled, enter a line starting with a semicolon followed by one or more '-' signs:

    
    A=L.0.ToneFreq
    B=R.0.ToneFreq
    ;+++++ Extended comment starts
    C=sqrt(A^2 + B^2)
    L.1.ToneFreq=C
    L.0.Level=50
    L.1.Level=50
    ;----- Extended comment ends
    ...
    ...
    

This is often simpler than inserting semicolons in front of every line to be disabled. It is especially handy during development, since you can easily re-enable the lines by inserting a space after the starting semicolon. That converts the starting line into an ordinary single-line comment, so the following lines run normally. (You don't need to do anything with the ending line; it's a valid single-line comment as-is.)

Note that you may not comment out continued lines (those following a line ending with an underscore) unless you comment out the initial underscore line as well.


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