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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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Synthesizer Control Dialog

Controls: Edit Menu >> Synth Controls
Macro: SynthDlg

You can pop up this dialog from the Edit menu via ALT+E, N or directly via CTRL+N. This dialog will not appear if no MIDI synthesizer is found in your system; an explanatory message will be shown instead.

This dialog controls the sound card's built-in synthesizer, giving it limited signal generator capabilities. It is no substitute for the Daqarta Generator, but because it has its own independent output channel, it may be useful on some older sound cards that don't allow Wave Output during Input ( full-duplex operation). Note however, that some cards automatically disconnect the Synth output when Input is active.

The card synth is independent of the Daqarta Generator. Both, however, share the same Master Out control, so you may want to select Use Vol Steps from the Generator Attenuator Options dialog (if it is not selected already) so that the Generator Wave Out control will be independent of Master Out. That way you can use both Synth and Generator simultaneously.

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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