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!

Reset Phase On Sweep

Controls: Gen Dlg >> Stream >> Tone Freq >> Sweep
Macro: ToneRstSweep

When a frequency sweep starts the first time, the main wave begins at the Phase setting and continues from there. But you can control what happens on subsequent sweeps.

When this control is on, each sweep will start at exactly the same phase. If you set Sweep Sync, and use Gen Sync with Trigger active, a display of the output will appear frozen.

When this control is off, each sweep will start at whatever phase the main wave had when the prior sweep ended. With Sweep Sync active, the trace will roll continuously even though the start of the sweep is indeed at the display sync point. This might be useful to distinguish between response components that are sensitive or insensitive to phase at a given instantaneous frequency.


Macro Notes:

L.1.ToneRstSweep=1 will cause the Left Stream 1 Tone Phase to be reset at the start of each sweep. L.1.ToneRstSweep=0 cancels that, and L.1.ToneRstSweep=x toggles it on and off.


See also Reset Phase on Burst, Reset Phase on Train, Tone Frequency Dialog, Waveform Stream Controls.

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