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Daqarta for DOS
(Legacy systems only)

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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.
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DAT Invert

Controls: DD/Open >> DAT Format >> Invert
Macro: DATinv

If the data in the .DAT file was obtained with an inverting system, this toggle allows Daqarta to correct it. Signal inversion is a common situation, which may be due to an inverting sensor, preamp, or other extenal gain stage. Many sound cards invert recorded signals.

Note that the inversion applies to all channels if you specify 'Stereo' or '4-Chan' with the .DAT Channels control. Only the .DQA format keeps track of polarity on individual channels.

See also File Menu, Open Existing Data File, .DAT File Format Dialog

Applications:

Frequency response

Distortion measurement

Speech and music

Microphone calibration

Loudspeaker test

Musical instrument tuning

Animal sound

Evoked potentials

Rotating machinery

Vehicle pass-by noise

Product test

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