Print Email Facebook Twitter Quantifying sound quality in loudspeaker reproduction Title Quantifying sound quality in loudspeaker reproduction Author Beerends, J.G. van Nieuwenhuizen, K. van den Broek, E.L. Publication year 2016 Abstract We present PREQUEL: Perceptual Reproduction Quality Evaluation for Loudspeakers. Instead of quantifying the loudspeaker system itself, PREQUEL quantifies the overall loudspeakers' perceived sound quality by assessing their acoustic output using a set of music signals. This approach introduces a major problem: subjects cannot be provided with an acoustic reference signal and their judgment is based on an unknown, internal, reference. However, an objective perceptual assessment algorithm needs a reference signal in order to be able to predict the perceived sound quality. In this paper these reference signals are created by making binaural recordings with a head and torso simulator, using the best quality loudspeakers, in the ideal listening spot in the best quality listening environment. The reproduced reference signal with the highest subjective quality is compared to the acoustic degraded loudspeaker output. PREQUEL is developed and, subsequently, validated using three databases that contain binaurally recorded music fragments played over low to high quality loudspeakers in low to high quality listening rooms. The model shows a high average correlation (0.85) between objective and subjective measurements. PREQUEL thus allows prediction of the subjectively perceived sound quality of loudspeakers taking into account the influence of the listening room and the listening position. Subject 2016 ICTCSR - Cyber Security & RobustnessTS - Technical SciencesAcoustic variables measurementAudio recordingsBinsSignal processingSound reproductionBinaural recordingsListening positionsLoudspeaker systemObjective and subjective measurementsPerceptual assessmentQuality evaluationReference signalsSubjective qualityLoudspeakers To reference this document use: http://resolver.tudelft.nl/uuid:80fd2158-1264-4832-bddb-7f77d739f2c0 DOI https://doi.org/10.17743/jaes.2016.0034 TNO identifier 745597 Publisher Audio Engineering Society ISSN 1549-4950 Source AES: Journal of the Audio Engineering Society, 64 (10), 784-799 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.