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This paper seeks to present an algorithm for the prediction of frontal spatial fidelity and surround spatial fidelity of multichannel audio, which are two attributes of the subjective parameter called basic audio quality. A number of features chosen to represent spectral and spatial changes were extracted from a set of recordings and used in a regression(More)
AUDIO This preprint has been reproduced from the author's advance manuscript, without editing, corrections or consideration by the Review Board. The AES takes no responsibility for the contents. When assessing the spatial performance of a sound reproducing system, a knowledge of the dimensions forming the perceived spatial impression is important. In this(More)
The subjective effects of controlled high frequency limitation of the audio bandwidth on assessment of audio quality were studied. The investigation was focused on the standard 5.1 multichannel audio setup (Rec. ITU-R BS.775-1) and limited to the optimum listening position. The effect of video presence on audio quality assessment was also investigated. The(More)
The comparative effect on audio quality of controlled multichannel audio bandwidth limitation and selected down-mix algorithms was examined. The investigation was focused on the standard 5.1 multichannel audio setup (Rec. ITU-R BS.775-1) and was limited to the optimum listening position. The obtained results indicate that in case of multichannel audio(More)
Previous research has indicated that the relationship between the interaural cross-correlation coefficient (IACC) of a narrow-band sound and its perceived auditory source width is dependent on its frequency. However, this dependency has not been investigated in sufficient detail for researchers to be able to properly model it in order to produce a(More)
The effect of division of attention between the evaluation of multichannel audio quality and involvement in a visual task (playing a computer game) was investigated. It was observed that involvement in a visual task may significantly change the results obtained during evaluation of audio quality for some listeners and for some experimental conditions. It(More)
5225 This preprint has been reproduced from the author's advance manuscript, without editing, corrections or consideration by the Review Board. The AES takes no responsibility for the contents. Abstract-Current research into spatial audio has shown an increasing interest in the way subjective attributes of reproduced sound are elicited from listeners. The(More)
Two objective measurement techniques have been proposed that relate the fluctuations in interaural time difference to one or more attributes of subjective spatial perception. This paper reviews these measurements, discusses how these fluctuations may be created in a real acoustical environment, summarises the experiments carried out to elicit the subjective(More)