ARTA 1.7.0

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Date updated

February 19, 2011

Developer

Ivo Mateljan | (more products)

All time downloads

2,466

License / Price

Free Trial / $117.5

Platform

Windows

Size

6.30 MB

Description of ARTA 1.7.0

Audio measurements for communication systems

ARTA software is a collection of programs for audio measurements and analysis in acoustical and communication systems. 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

Key features

• ASIO soundcard interface is implemented in ARTA, STEPS and LIMP programs.
• New menu in Imp window: Record -> Signal Time Record opens transient recorder with added generator.
• Generator in transient recorder generates sine burst and pulse signals.
• Periodic square and triangle signals are added to ARTA generator.
• Generator has new multitone signal (square + sine) for measuring TIM (DIM).
• In Copy bitmap dialog, user defined text can be saved for next opening of the dialog.
• Added more MLSSA files import types (impulse and transient response).
• Directivity curves smoothing improved at highest frequency.
• Microphone compensation applied only in the range that is defined in mic. fr. response.
• Downsampling (menu Edit->Downsample in Imp window) enabled analysis of CSD in low freq. range.
• Acoustical parameters now calculated only for available range of frequencies.
• Better ISO3382 compatibility in the estimation of reverberation time and noise reduction.
• Improved estimation of very small reverberation time.
• Implemented Scaling of acoustical model response (menu 'Edit->Scale acoustical model' in Imp window).
• New Imp menu command added (Edit->Truncate to [cursor, marker]).
• Calibration procedure is now slightly simpler (calibrated output voltage is automatically entered as input voltage).
• Overlay plotting is enabled in Step, Dft and IR Envelope windows.
• Impedance curve overlay can be shown in FR magnitude plots of ARTA and STEPS.
• Now all FR and spectrum graphs can have tick marks and denser grid (Menu Edit->Colors and grid style) .
• Thick line option is enabled in all windows.
• STEPS now optionally mutes transients after sine cut-off (but, measurement time larger 50%).

What is new in version 1.7.0

• Microphone calibration update is enabled from SPL & Octave band windows.
• Mlssa export does not make normalization to 1.
• Solved bug with MLS and other nonpower of 2 length IRs in IACC measurement.
• STEPS now has correct frequency step in 1/48 octave mode.