3D Tune-In Toolkit: An open-source library for real-time binaural spatialisation

Autor: Lorenzo Picinali, Carlos Garre, Luis Molina-Tanco, Arcadio Reyes-Lecuona, Ernesto J. de la Rubia-Cuestas, Maria Cuevas-Rodriguez, Daniel Gonzalez-Toledo
Přispěvatelé: Commission of the European Communities
Rok vydání: 2019
Předmět:
Computer science
Reverberation
Audio Signal Processing
Social Sciences
02 engineering and technology
computer.software_genre
01 natural sciences
Rendering (computer graphics)
Mathematical and Statistical Techniques
Hearing
Computer graphics (images)
Medicine and Health Sciences
0202 electrical engineering
electronic engineering
information engineering
Psychology
Audio signal processing
010301 acoustics
Numerical Analysis
Multidisciplinary
Physics
Audio filter
Signal Filtering
Physical Sciences
Engineering and Technology
Medicine
Sensory Perception
Loudspeaker
Anatomy
Research Article
Sound localization
General Science & Technology
Science
Research and Analysis Methods
Acoustic Signals
MD Multidisciplinary
0103 physical sciences
Psychophysics
Humans
Sound Localization
Ambisonics
Biology and Life Sciences
020206 networking & telecommunications
Acoustics
Convolution
Interpolation
Acoustic Stimulation
Ears
Signal Processing
Mathematical Functions
Head
Binaural recording
computer
Mathematics
Software
Neuroscience
Zdroj: PLoS ONE, Vol 14, Iss 3, p e0211899 (2019)
PLoS ONE
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0211899
Popis: The 3D Tune-In Toolkit (3DTI Toolkit) is an open-source standard C++ library which includes a binaural spatialiser. This paper presents the technical details of this renderer, outlining its architecture and describing the processes implemented in each of its components. In order to put this description into context, the basic concepts behind binaural spatialisation are reviewed through a chronology of research milestones in the field in the last 40 years. The 3DTI Toolkit renders the anechoic signal path by convolving sound sources with Head Related Impulse Responses (HRIRs), obtained by interpolating those extracted from a set that can be loaded from any file in a standard audio format. Interaural time differences are managed separately, in order to be able to customise the rendering according the head size of the listener, and to reduce comb-filtering when interpolating between different HRIRs. In addition, geometrical and frequency-dependent corrections for simulating near-field sources are included. Reverberation is computed separately using a virtual loudspeakers Ambisonic approach and convolution with Binaural Room Impulse Responses (BRIRs). In all these processes, special care has been put in avoiding audible artefacts produced by changes in gains and audio filters due to the movements of sources and of the listener. The 3DTI Toolkit performance, as well as some other relevant metrics such as non-linear distortion, are assessed and presented, followed by a comparison between the features offered by the 3DTI Toolkit and those found in other currently available open- and closed-source binaural renderers.
Databáze: OpenAIRE
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