ARTA Software

ARTA software is a collection of programs for audio measurements and analysis in acoustical and communication systems.
ARTA software uses standard and professional PC sound cards for audio signal acquisition and generation. 

You can read ARTA as; Audio Real Time Analysis.

ARTA software contains three programs:

ARTA.EXE - program for the impulse response measurement, real-time spectrum analysis and frequency response measurements.

STEPS.EXE - program for frequency response measurements with stepped-sine excitation.
Simultaneously with a frequency response measurement the program estimates levels of 2nd, 3rd, 4th, 5th and higher order harmonic distortions.

LIMP.EXE - program for the loudspeaker impedance measurement and loudspeaker parameters estimation.

ARTA has functions of following measurement systems:

Signal generator of random and deterministic signals
Impulse response measurement system
Frequency response measurement system
Fourier analyzer
Spectrum analyzer
THD analyzer
Storage scope

With calibrated microphone, ARTA can be used as a virtual IEC class 1 SPL meter with a real time modes:

Integrating SPL meter with 24 hours data logging,
Octave SPL meter with noise rating (NR, NC, PNC, RC,NCB),
Third octave SPL meter with report of loudness in sones and level in phones

ARTA is also a powerful analyzer of Gated impulse response, Smoothed frequency response (in 1/n-octave bands), Step response, Impulse response envelope (ETC curve), Cumulative spectral decay waterfall graphs and sonogram, Burst decay waterfall graphs and sonograms, Energy decay in reverberant environments, Room acoustical parameters, Directivity patterns, Speech intelligibility measures: MTF, STI, STIPA, %AL.

ARTA software contains User manuals for all its programs (see Install section).
Several Tutorials and Application Notes are presented in Support section.

Latest news:

May, 17, 2021; New versions of ARTA Web pages are published.

February, 9, 2021; New version of application note AN1 - Measurement Box, is published. See Support section.

November, 19, 2019; ARTA software version 1.9.3 Update 1 is published in Install section.

November, 12, 2019; ARTA software release version 1.9.3 is published in Install section.

For more details, see News section.

Screenshots from programs ARTA, LIMP and STEPS


Imp window

Figure 1. The ARTA window for impulse response analysis.


Imp setup

Figure 2. The dialog box for measurement of impulse response using four types of signals: periodic noise, swept-sine, MLS and external impulse.


Spectrum window

Figure 3. The ARTA spectrum analyzer window.


Energy decay

Figure 4. The Energy decay window with user interface for acoustical parameters estimation


CSD window

Figure 5. The Cumulative Spectral Decay of two-way loudspeaker box.


Burst Decay window

Figure 6. The Shaped Burst Decay response of two-way loudspeaker box


Directivity sonogram

Figure 7. The Directivity sonogram


LIMP window

Figure 8. The LIMP window for impedance measurement


STEPS window

Figure 9. The STEPS plot of frequency response, 2nd and 3rd harmonic distortion, measured with stepped-sine.

A sample from registered user list:

A sample list of well known registered users contains laboratories at Samsung Electronics, Phillips, Sony Corp., Siemens, Nokia, LG Electronics, Skype/Microsoft, Analog Devices, Maxim Semiconductors, Conexant Systems, Intel Technology - Poland, L-Acoustics, Beyerdynamic, Quadral, Genelec Oy, Ford Audio-Video, General Electric Global Research, Orban, Bose, Logitech, Visaton, Revox, MBL,QSC Audio Products LLC, Bang Olufsen - Deutschland ....