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The 3D Tune-In Toolkit: A C++ library for binaural spatialisation, and hearing loss / hearing aids emulation

Research Area: Year: 2019
Type of Publication: In Proceedings Keywords: Binaural, Rendering, Hearing Aid, Hearing Loss
Authors: Reyes-Lecuona, Arcadio; Cuevas-Rodríguez, María; González Toledo, Daniel; Garre del Olmo, Carlos; de la Rubia Cuestas, Ernesto J.; Molina-Tanco, Luis; Rodríguez-Rivero, Ángel; Picinali, Lorenzo
Book title: 23rd International Congress on Acoustics, ICA2019
Address: Aachen
Month: September
ISBN: 9783939296157
This contribution presents the 3D Tune-In (3DTI) Toolkit, an open source C++ library for binaural spatialisation which includes hearing loss and hearing aid emulators. Binaural spatialisation is performed through convolution with user-imported Head Related Transfer Functions (HRTFs) and Binaural Room Impulse Responses (BRIRs), including additional functionalities such as near- and far-field source simulation, customisation of Interaural Time Differences (ITDs), and Ambisonic-based binaural reverberation. Hearing loss is simulated through gammatone filters and multiband expanders/compressors, including advanced non-linear features such as frequency smearing and temporal distortion. A generalised hearing aid simulator is also included, with functionalities such as dynamic equalisation, calibration from user-inputted audiograms, and directional processing.

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