San Martín Murugarren, Ricardo

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https://academica-e.unavarra.es/handle/2454/49983

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San Martín Murugarren

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Ricardo

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Ciencias

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InaMat2. Instituto de Investigación en Materiales Avanzados y Matemáticas

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0000-0001-7268-5553

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88603

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2636

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2021 - 20222
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Subject: Localization ×

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Now showing 1 - 2 of 2
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    PublicationOpen Access
    Localization of sound sources in binaural reproduction of first and third order ambisonics
    (Poznan University of Technology, 2022) Sagasti, Amaia; Pietrzak, Agnieszka Paula; San Martín Murugarren, Ricardo; Eguinoa Cabrito, Rubén; Ciencias; Zientziak
    The use of higher-order ambisonics in spatial sound recordings makes it possible to increase the accuracy of recording information about the direction from which the sound comes to the listener. However, with binaural ambisonic sound reproduction, the listener's ability to locate the sound source accurately may be limited. This paper presents a comparison of the listener's ability to locate a sound source during binaural listening to recordings made with first and third order ambisonic microphones. The analysis was carried out for two types of signal: pink noise and ringing sound. The analysis of localization errors depending on the ambisonics order, azimuth and elevation angles as well as the type of signal is presented. The obtained data indicate that in binaural reproduction of the ambisonic sound the localization errors in the azimuth plane were smaller for the third order ambisonics, compared to the first order. In the elevation plane both for first and third order the errors were significant.
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    PublicationOpen Access
    Subjective evaluation of the localization performance of the spherical wavelet format compared to ambisonics
    (IEEE, 2021) Eguinoa Cabrito, Rubén; San Martín Murugarren, Ricardo; Arteaga, Daniel; Scaini, Davide; Ciencias; Zientziak
    A common goal of most spatial audio techniques is to reproduce the precise location and size of sound sources. Ambisonics is a well-established spatial audio technique that renders sound sources with increasing accuracy as the Ambisonics’ order increases. Recently, a novel spatial audio format that replaces spherical harmonics with a set of functions based on wavelets has been proposed. The Spherical Wavelet Format (SWF) aims to improve Ambisonics localization, especially at low orders. This study investigates the perceptual spatial properties of both techniques by means of a set of MUSHRA tests.