AsA

AsA is a collection of programs for the analysis of audio signals. AsA consist of three programs, that emulates some classical laboratory instruments using a simple full-duplex soundcard. dual channel.

FFT Analyzer
main features:

– dual channel.
– time window functions.
– A B and C frequency weighting.
– magnitude and phase display
– exponential and linear averaging.
– narrowband and RTA analyzer.
– frequency response compensation.
 
Oscilloscope
main features:

– dual channel.
– trigger
– XY display
Signal Generator
main features:

– sinusoidal wave.
– squere wave.
– triangular wave.
– phase variation between channels.
Multimeter
main features:

– Voltages measurement (Vrms, dBV, dBu)
– Sound Pressure measurement (dBSPL, dB[A], dB[C])
– Frequency measurement (Hz, Rpm)
– Distorsion measurement (THD %,THD dB)
– Resistance, Capacitance, Inductance measurement (impedance JIG is required).
– Data Logging.

Screenshoot gallery

Warning: Currently AsA is in a very alfa state, so some features may not work properly or not work at all. In the download section you will find a zip file that contain all the AsA standalone executables. Future versions well be realeased as single executable and with an installer.