Different projects require different tools.
At ARI we design tools especially for particular projects to obtain optimal solutions. For instance we adapted the software framework ExpSuite, which is used for most of our psychoacoustic experiments, to our needs, and for the measurement of the head related transfer functions (HRTF) we designed loudspeakers which meet the acoustic requirements. We also developed a fast system identification method, the multiple exponential sweep method (MESM): this is a method for the fast and convenient measurement of HRTFs. In this section we present some tools from our lab.
The ARI lab consists of four testing places:
The rooms are not only used for measurements and experiments, but also for speech recordings, speaker identification and survey reports.
During the breaks in experiments, the subjects can use an internet terminal or relax on a couch while sipping hot coffee...
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|Psychoacoustics concerns itself with the relationship between the acoustic signals and their subjective percept. Loudness, pitch and timbre are approximately the correlates of signal amplitude, frequency and frequency spectrum, respectively. Experimental and mathematical models describe the interrelations between the basis functions of auditory perception. Computational Auditory Scene Analysis (CASA) is an integrative approach to combine different fields of psychoacoustics. The results enter the research in sound localisation, speech and music perception, noise abatement etc.|
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The Acoustics Research Institute is involved in the creation and maintenance of a number of software packages used for acoustic research.
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