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!

Spectrogram Pitch Track Key Colors

Controls: Sgram/PT Dialog >> Colors >> White/Black Keys
Macros: SgWhtRed, Grn, Blu; SgBlkRed, Grn, Blu

These controls set the colors for the "White key" and "Black key" stripes shown as the screen background during Spectrogram Pitch Track mode. The default colors are actually gray and black, which provide good contrast for most signals using the default Spectrogram palette. You may set them to any colors you choose.

Daqarta retains these color settings across sessions; they are not included Spectrogram Palette (.PAL) files, so they don't change automatically when you load a new palette.

These two colors temporarily replace the bottom two colors of the Spectrogram working palette when Pitch Track is active. You may be able to notice them at the bottom of the color bar at the right end of the spectrogram trace area, especially if you use colors that contrast with the usual bottom colors. The Palette Color Bar is not affected.

The equivalent color of the Track Threshold level is shown above the key colors for reference, to aid in adjustment. This is the same as the Threshold color status box in the Pitch Track section of the Spectrogram control dialog.


Macro Notes:

SgWhtRed=128 Sets the White key Red component to 128. SgWhtRed=>1 increments the component and SgWhtRed=>-1 decrements it.

Similarly, SgWhtGrn and SgWhtBlu control the Green and Blue components of the White key color, while SgBlkRed, SgBlkGrn, and SgBlkBlu control the Red, Green, and Blue components of the Black key color.


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

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