Real Time Auralization Module for Electronic Travel Aid Devices for People with Visual Disability
This paper presents a software module for real-timeauralization that was used to recreate the acoustic perceptionproduced by a sound obstacle in virtual and real environments.This module fulfills the function of inserting, in any audio signal,a three-dimensional positioning effect that allows the li...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Escuela Politécnica Nacional (EPN)
2018-08-01
|
| Series: | Latin-American Journal of Computing |
| Subjects: | |
| Online Access: | https://lajc.epn.edu.ec/index.php/LAJC/article/view/144 |
| Summary: | This paper presents a software module for real-timeauralization that was used to recreate the acoustic perceptionproduced by a sound obstacle in virtual and real environments.This module fulfills the function of inserting, in any audio signal,a three-dimensional positioning effect that allows the listenerto determine the location of a sound source within the chosentest environment. This effect was achieved with a processingtechnique called segmented convolution and several functionscontained in a database of head related impulse responses(HRIRs). The module was tested in a real environment anda virtual one. In the real test environment, the user had astereoscopic camera that fulfilled the function of an obstacledetector, as well as a computer and headphones, in which themodule was installed and three-dimensional sound alerts weregenerated. In this way, the effects could be recorded, analyzed,discussed and finally validated. |
|---|---|
| ISSN: | 1390-9266 1390-9134 |