A balance between what we see and what we hear is necessary in all the spaces where people live. In a city, there are a number of sounds that are perceived by most inhabitants as disturbing. It is therefore necessary to mask these sounds, and this type of intervention in the soundscape creates acoustically alternative urban spaces. The evaluation of the applied solutions changing the soundscape should be reviewed. The previously used tranquillity indices for assessing the visual and acoustic soundscapes have their limitations. They do not take into account the perception of space at night or the sound structure regardless of the time of day. This paper starts a discussion on how the tranquillity factor should evolve so that it can be used to evaluate the progressively changing urban spaces.
krajobraz dźwiękowy ; współczynnik spokoju ; przestrzenie miejskie ; przestrzeń ; miasto ; akustycznie alternatywne przestrzenie miejskie soundscape ; tranquillity factor ; urban spaces ; space ; city ; acoustically alternative urban spaces
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