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!

Wave Block Size

Controls: Edit Menu >> Start Preferences >> Wave Block
Macro: WaveBlock

This control sets the size of a single wave buffer or "block", in Kilobytes (KB, where 1 KB = 1024 bytes). You can select 2, 4, 8, 16, or 32 (default). The total size of all buffers is always 256 KB, so there will be 8 buffers if they are each 32 KB, and up to 128 buffers if they are each 2 KB.

32 KB is probably a good compromise for most systems. Under some conditions, or with some systems, you may want to use smaller buffers. In general, smaller buffers allow quicker responses to changes in Generator settings, especially Solo, Dual, and Swap. Large buffers may give better immunity from Windows-related latency problems (crackles, ticks, and pops), especially at higher sample rates or under high computational loads. (The Generator has more to do when many streams are in use, and/or each has many modulators active.)

Note: Changes to this parameter do not take effect until the next Daqarta session.


See also Start Preferences Dialog

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