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!

Text Editors with Column Support

The standard Notepad ASCII text editor that comes with Windows is fine for simple editing jobs, but it has no support for column operations. When you select text by clicking and dragging, all the text starting from the initial click is selected, row by row... you can't select only one column. To delete a long column of text (perhaps the length of the entire file), you would need to select the appropriate entry in each row and delete it separately.

Full-featured editors make this much simpler: Hold down the ALT key while selecting text with the mouse. The selection area starts at the initial click, but its horizontal and vertical extents are defined by the horizontal and vertical mouse motions... you can easily select one or several adjacent columns. Then you can delete as desired, or cut and paste to rearrange columns. (Note that this is usually best done with a monospaced font so the columns stay aligned, unlike with a proportional font.)

Here are two excellent, free, full-featured text editors that support column operations:

Notepad++ (3.4 mB download)

PSPad (4.2 MB download)


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