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2 Vibrations in Physical Systems

2 2024

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Subjective assessment of immersive and stereo sound systems directivity

Błasiński Łukasz, Kociński Jędrzej

Vibrations in Physical Systems

2024

Vol. 35, nr 3

art. no. 2024301

The pursuit of achieving lifelike spatial sound reproduction in music production has spurred the advancement of immersive sound systems. With the growing prevalence of immersive sound systems, investigating their perceptual attributes through a psychoacoustic lens has become a pertinent endeavour. This study focuses on the subjective assessment of directional perception when exposed to audio signals rendered via both stereo and immersive sound systems. A comprehensive series of listening tests were conducted to evaluate listeners' capacity to localise sound sources originating from five distinct positions on a virtual stage, comparing results between stereo and immersive sound configurations. The findings of this study unequivocally underscore the perceptual advantages of immersive sound setups over conventional stereo configurations.

Comparing twelve stereophonic microphone systems for sound source localization

Błasiński Łukasz, Kasprzyk Stanisław, Felcyn Jan, Jarczyk Justyna, Kociński Jędrzej

Vibrations in Physical Systems

2024

Vol. 35, nr 3

art. no. 2024303

The ability to localize sound sources is important not only in everyday life, but also in the realm of music and sound production to enhance the perception and feelings of listeners and make the production sound more natural. The article describes a series of experiments performed to test which stereo microphone system allows listeners to correctly localize sound sources when sound samples are presented with headphones. The experiments tested 12 different stereo microphone systems and several sets of angles from which sound samples were presented. The highest score was obtained for near-coincidence NOS/ DIN family systems, while the lowest for AB systems. While different systems bring different scores, the stereophonic signals recorded by the different variants of near-coincidence systems are the most compatible with the subjective perception of sound directivity.