Evaluating Influences of a Central Automotive Loudspeaker on Perceived Spatial Attributes using a Graphical Assessment Language

摘要

An investigation is described which further develops a Graphical Assessment Language (GAL) for subjectivelyevaluating spatial attributes of audio reproductions. Two groups of listeners, those with previous experience ofusing a GAL and listeners new to graphical elicitation, were involved in the study which considered theinfluence of a central automotive loudspeaker on listeners’ perception of ensemble width, instrument focus andimage skew. Listeners represented these attributes from both driver’s and passenger’s seats using their owngraphical descriptors. Source material for the study consisted of simple instrumental and vocal sources chosenfor their spectral and temporal characteristics. Sources ranged from a sustained cello melody to percussion andspeech extracts. When analysed using conventional statistical methods, responses highlighted differences inlisteners’ perceptions of width, focus and skew for the various experimental conditions.