Soundscapes analysis: Piazza Tre Martiri in Rimini and Piccadilly Circus in London

Research in outdoor acoustics is not widely studied in room acoustics from an immersive-experience point of view. However, the combination of 3D audio with a panoramic view makes the urban environment more engaging when played back. For this campaign of measurements, a 64channel spherical array microphone has been used, corresponding to a resolution equal to high-order ambisonics (HOA), Still,for simplicity, it has been analyzed up to the 3ʳᵈ order (O3A). This paper deals with the analysis of a soundscape taken in Piazza Tre Martiri in Rimini, a historical square located in Emilia-Romagna, Italy, and in Piccadilly Circus, London, UK. In contrast to the first place, resulting is not very busy in terms of road traffic noise; the second square is the main crossover of the city center. Both of them are characterized by events and gatherings for many citizens who like to find the opportunity to socially engage and interact with other people. In addition, their historical value related to architecture gives more importance to this study, as it has never been carried out from this perspective. The audio recording has been analysed by using environmental parameters such as loudness, sharpness, prominence, and roughness.