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

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Dual (Left / Right) Output

Controls: Generator Dialog >> Dual
Macros: GenDualL, GenDualR, GenMode

When Left Dual is active, the Left signal goes to both outputs and the normal Right signal is ignored. The reverse is true when Right Dual is active.

If you have only a single output active and neither Dual nor Solo selected, the single channel is sent to the sound card in mono mode, where it is directed to both Left and Right outputs. If you select Dual, the sound card is operated in stereo mode and the same signal data is sent separately to each of the channels.

The audible result is the same, but the advantage of Dual is that you can switch back and forth to Solo without an audible click. There will be a slight delay before any change made here reaches the output, but it will be a smooth transition as discussed under Left / Right Output Enable.

Note that the Dual buttons are disabled when the Multi-Channel Outputs On button is active in the Multi-Channel Outputs dialog, even if the Generator is off so there is no actual output

Macro Notes:

GenDualL=1 turns Left Dual on, and toggles Left Solo, Right Solo, or Right Dual off if previously on. GenDualL=0 turns Left Dual off (without changing anything else), and GenDualL=x toggles between the two states.

GenDualR operates the same way for Right Dual.

In some cases you may want to change the Swap state at the same time as Dual, without separate fade transitions. To do this, give the desired Swap state as a second digit. For example, GenDualL=10 sets Left Dual on and Swap off. Note that when you use this option you must use digits 0 and 1 to set specific states only; you may not use an x to toggle an existing state.

See also Signal Generator Control Dialog.


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