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

Signal Generator
(Absolutely FREE!)

Spectrogram

Pitch Tracker

Pitch-to-MIDI

DaqMusic
(Free Music... Forever!)

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)

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

Musical instrument tuning

Animal sound

Evoked potentials

Rotating machinery

Automotive

Product test

Contact us about
your application!

Save Spectrogram Palette

Controls: Sgram/PT Dialog >> Colors >> Save Pal
Macro : SavePAL

After you have created a palette you like, you can save it to a .PAL file by clicking on this button. You may also want to save several intermediate steps if you are creating a complex palette, so you can return to a known point if subsequent steps don't turn out just right.

You may want to use different palettes for different Spectrogram applications. For example, if you are going to print the screen with a black-and-white printer, you may want a simple grey-scale palette just for that. You may find that certain palettes look better on certain digital projectors or laptops.

Or you may want your results to be easily compared to others that used a certain palette. For example, many older spectrograms were made with special equipment that used thermal paper; spectrograms were black on a white background, with higher levels (more heat) corresponding to darker blacks.

If you have made changes to a palette during a session but haven't saved it, you will be prompted to do so when you exit Daqarta.


Macro Notes:

The SavePAL= macro has no effect if any File Open or Save As dialog is already active.

SavePAL= without a name will open the Save As dialog showing all .PAL files, with the default set to Sgram.

SavePAL="MyFile" will open the Save As dialog with the default name set to MyFile. (Note that quotes are needed around all filenames in macros.) If you accept this by hitting Enter or the Save button in that dialog, Daqarta will assume you want to save a file named MyFile.PAL. If that file already exists, you will be prompted to replace it.

A.SavePAL="MyFile" will save MyFile.PAL directly, without any Save As dialog. Note that if the file already exists, it will be overwritten without any confirmation prompt.

SavePAL can use string variables and complex strings. For example, SavePAL=Field1 will use the contents of Field1 as the default file name, and A.SavePAL=Field1 will save a file with that name directly.

Similarly, if the Macro Variable Var0 holds a value of 12, then SavePAL="Test"+Var0 will set a default file name of Test012.

See also Spectrogram / Pitch Track (Sgram/PT), Spectrogram / Pitch Track Controls, Spectrogram Color Palette Dialog

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