Audio Measurement and Analysis Software
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The ARTA software consists of following programs:
ARTA - program for the impulse response measurement and for real-time spectrum analysis and frequency response measurements.
STEPS - program for frequency response measurements with stepped-sine excitation.
LIMP - program for the loudspeaker impedance measurement and loudspeaker parameters estimation.
The ARTA program has functions of following measurement systems:
Impulse response measurement system with signal generators: periodic white noise, periodic pink noise, MLS, linear and logarithmic swept-sine.
Dual channel Fourier analyzer with signal generators: white noise, pink noise, periodic white noise and periodic pink noise.
Single channel Fourier analyzer with signal generators: periodic white noise and periodic pink noise.
Spectrum, octave band and THD analyzer with signal generators: sine, two sine, multitone, white noise, pink noise, periodic white noise and periodic pink noise.
Triggered storage scope with spectrum and short-time Fourier analysis.
Two-channel voltage level meter and third octave analyzer
With calibrated microphone, ARTA can be used as a virtual IECC 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 specific loudness, loudness in sones and loudness level in phones.
The ARTA program is also a powerful analyzer of:
Gated frequency 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 sonogram,
Energy decay in reverberant environments,
Room acoustical parameters,
Directivity patterns,
Speech intelligibility measures: MTF, STI, RASTI, %AL.
The STEPS program enables the measurement of the frequency response with a high dynamic range and a high noise immunity. Simultaneously with a frequency response measurement the STEPS estimates levels of 2nd, 3rd, 4th, 5th and higher order harmonic distortions.
The LIMP program is specialized for the loudspeaker impedance measurement and for the estimation of loudspeaker physical and Thiele-Small parameters.
Author of this software is:
Ivo Mateljan
Electroacoustic Laboratory, Faculty of Electrical Engineering, 21000 Split, Croatia.
You can read ARTA as Audio Real Time Analysis, and also as Art for Audio
January, 3, 2010;
ARTA version 1.6.1, is published (See News section).
December, 6, 2009;
ARTA version 1.6.0, is published (See News section).
April, 5, 2009;
ARTA version 1.5.0, is published (See News section).
July, 20, 2008;
ARTA service release, version 1.4.2, is published (See News section).
May, 4, 2008;
ARTA tutorial in German language ver.2.1 is published.
April, 30, 2008;
A user Case Study on PA loudspeaker design is published.
April, 24, 2008;
ARTA version 1.4.1 is published (Changes are described in the News section).
April, 20, 2008;
ARTA version 1.4.0 is published (Changes are described in the News section).
October, 26, 2007;
Links to interesting papers added on support page.
June, 29, 2007;
ARTA version 1.3.0 is published
March, 4, 2007;
ARTA service release version 1.2.1 is published
ARTA works in Windows VISTA (32-bit edition).
February, 5, 2007;
ARTA version 1.2.0 is published (see download section).
New application note Directivity and Polar added.
November, 01, 2006; Spanish translation of the ARTA manual is published on support page.
October, 23, 2006; Version 2 of Tutorial in German language published on support page.
September, 23, 2006; Spanish translation of LIMP and STEPS manual is published on support page.
September, 14, 2006; ARTA version 1.1.1 is published. Changes are explained in the News section.
August, 21, 2006; ARTA version 1.1.0 is published.
August, 14, 2006; Angel Fdez.-Escalante Bárcena has contributed the spanish translation of Application Notes for the Support page
August, 03, 2006; An update in download section explained in the News section.
August, 02, 2006; Application note 'ARTA Chamber for the Lower End Microphone Calibration'' published on Support page.
July, 31, 2006; Application notes 'Why 64-Bit Processing' and 'Loudspeaker free-field response' published on Support page.
July, 24, 2006; ARTA software service release 1.0.3 is available for download. For Change-log look at news page.
May, 4, 2006; An ARTA tutorial in German language published on Support page.
April, 24, 2006; First release version of ARTA ready for download.
April, 14, 2006; Added Application note - RLC Measurement with Limp.
April, 11, 2006; Started Support page with first ARTA application note - ARTA Measuring Box.
April, 3, 2006; Bugs report given on Download page.
April, 2, 2006; Started the News page. Added some links.
February 5, 2006; Started FAQ section.
June 15, 2005; Pre-release version of the ARTA published.