A previous study carried out on 20 squares in the centre of Rome has proposed, by multiplelinear regression, a model to predict values of subjective rating on “chaotic/calm” and“enclosed/open” attributes on the basis of some acoustical and non-acoustical parameters,namely sharpness (only for the former attribute), Laeq, roughness and the shape factor ofthe square, calculated as ratio between its area and the average height of buildings facingthe square itself.The present paper describes a further study on the above modeling using the data collectedin a survey carried out in 17 squares in three cities in England (Manchester, Sheffield andYork). The data were taken in November 2011 with the same methodology used in Rome,namely binaural audio and video recordings during soundwalks alongside the perimeter ofeach square. The binaural recordings were analyzed to determine the acousticalparameters required for developing the model. In addition laboratory tests were carriedout to collect the subjective ratings on soundscape and video stimuli presented to a group of26 participants. Their opinions on some attributes were given on semantic differentialscales. The ratings were used as dependent variable in a multiple linear regression modelwhere the acoustic and non-acoustic parameters were used as independent variables.
展开▼
