Comparación subjetiva por medio de audífonos de la capacidad de localización de 4 bases de datos de HRTF de libre acceso

With the advent of virtual entertainment, the search for increasingly real experiences has led to the creationof stimuli that seek to simulate the sensations obtained from human senses. An example of this is thebinaural audio, which aims to simulate the way in which the human being listens to sound. This typeof audio is produced by means of HRTF filters, which are transfer functions found through the Fouriertransform of the impulse responses captured from the binaural heads (HRIR). The localization capabilityof these may not be very accurate, due both to physical factors of the measured head that are inheritedby the filter, and to differences in the type of playback system which is used and the room in which theuser listens to the produced audio.The purpose of this research work is to design and execute a methodology of subjective tests through aonline form, with the intention of making a comparison between the HRTF filter bases of MIT, IRCAM,SADIE and CIPIC, in terms of their location capability.From the analysis of percentages and indicators of uncertainty and location, it was concluded that nodifferences were found in the location capacity of the databases, except for the CIPIC filter, which has aslightly higher location capacity than the rest. In addition, a low percentage of hits was obtained, whereerrors due to cone of confusion and totally incorrect answers had the greatest influence.

• Autores: Tamayo Arcila, Tobias; Silva Zuluaga, Alejandro
• Fecha de publicación: 2021
• Institución: Universidad de San Buenaventura
• Repositorio: Repositorio USB
• Idioma: spa
• OAI Identifier: oai:bibliotecadigital.usb.edu.co:10819/8364
• Acceso en línea: http://hdl.handle.net/10819/8364
• Palabra clave: HRTF; Localización; Evaluación; Subjetiva; Localization; Subjective; Test; Audífonos
• License: Atribución-NoComercial-SinDerivadas 2.5 Colombia