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:



Spectrum Analyzer

Signal Generator

(Absolutely FREE!)


Pitch Tracker


DaqMusiq Generator
(Free Music... Forever!)

Engine Simulator

LCR Meter

Remote Operation

DC Measurements

True RMS Voltmeter

Sound Level Meter

Frequency Counter
    Spectral Event

    MHz Frequencies

Data Logger

Waveform Averager


Post-Stimulus Time
Histogram (PSTH)

THD Meter

IMD Meter

Precision Phase Meter

Pulse Meter

Macro System

Multi-Trace Arrays

Trigger Controls


Spectral Peak Track

Spectrum Limit Testing

Direct-to-Disk Recording



Frequency response

Distortion measurement

Speech and music

Microphone calibration

Loudspeaker test

Auditory phenomena

Musical instrument tuning

Animal sound

Evoked potentials

Rotating machinery


Product test

Contact us about
your application!

Revision History - v3.03

Daqarta v3.03.3 - 21 June 2007:

Bug Fix: Daqarta could crash after 30-90 minutes of Generator or Input operation.

Daqarta v3.03 - 2 February 2007:

Bug Fix: For some sound cards, independent Right Input Line Level was disabled for all lines if the first line was mono.

Bug Fix: Averager dialogs were inadvertently disabled when DDisk files were open. They are now properly disabled only for single-screen files.

Bug Fix: Averages performed on DDisk files now end automatically at the end of the file.

Bug Fix: Trigger Delay and Holdoff did not work with Averaging or unPaused scrolling of DDisk files.

Bug Fix: When a DDisk file average is complete, any manual motion (with <>, Home, or End) now clears the averager.

Bug Fix: Attempting to exit Daqarta after making changes to Notes or User Units calibration of an open file now prompts for saving the changed file, as it does for normal file close attempt.

Bug Fix: User Units were improperly stored for channels that were not enabled in the User Line dialog when re-saving a file.

Bug Fix: Open .WAV or .DAT files (which can't hold User Units calibration data) now initialize to 1.000 volt. Previously, showed data from the prior file opened in that session.

Bug Fix: Improved file position entry now gives better accuracy and agreement between readout modes.

Bug Fix: File Info dialog did not always show '-' sign for inverted Channels.

Bug Fix: ALT+Y didn't visibly toggle Y-log button copy in Curves Dialog (though it did properly change the mode).

Bug Fix: Entering very large values in some controls caused a sign change.

Unlike for live signals, Averaging or unPaused scrolling of DDisk files can now trigger on closely-spaced events.

Polarity button added in front of Units/Volt for open files, allowing quick waveform inversion. The file may be re-saved with the inversion in effect.

Open .WAV files may be re-saved as .DQA files after Notes or User Units calibration changes, and the changes will persist.

DDisk Write Size Preset, Write PreStart, Read Step Size, and readout Units are now preserved between sessions.

File Info dialog now shows '(N/A)' instead of '(Generator unused)' if file is not .DQA type.

For convenience, a User Units Toggle button was added to the User Line dialog. This is a duplicate of the one at the top of the User Units (and File Units) dialog.

Added Long-Duration Tests and Sound Exposures application note.


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