Name
Title | ||
|---|---|---|
A Recommender System For Improving Median Plane Sound Localization Performance Based On A Nonlinear Representation Of Hrtfs |
Abstract | ||
|---|---|---|
We propose a new method to improve median plane sound localization performance using a nonlinear representation of head-related transfer functions (HRTFs) and a recommender system. First, we reduce the dimensionality of an HRTF data set with multiple subjects using manifold learning in conjunction with a customized intersubject graph which takes into account relevant prior knowledge of HRTFs. Then, we use a sound localization model to estimate a subject's localization performance in terms of polar error and quadrant error rate. These metrics are merged to form a single rating per HRTF pair that we feed into a recommender system. Finally, the recommender system takes the low-dimensional HRTF representation as well as the ratings obtained from the localization model to predict the best HRTF set, possibly constructed by mixing HRTFs from different individuals, that minimizes a subject's localization error. The simulation results show that our method is capable of choosing a set of HRTFs that improves the median plane localization performance with respect to the mean localization performance using non-individualized HRTFs. Moreover, the localization performance achieved by our HRTF recommender system shows no significant difference to the localization performance observed with the best matching non-individualized HRTFs but with the advantage of not having to perform listening tests with all individuals' HRTFs from the database. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.1109/ACCESS.2018.2832645 | IEEE ACCESS |
Keywords | Field | DocType |
Spatial audio, HRTF, manifold learning, recommender systems | Recommender system,Nonlinear system,Pattern recognition,Computer science,Word error rate,Curse of dimensionality,Transfer function,Median plane,Artificial intelligence,Sound localization,Nonlinear dimensionality reduction,Distributed computing | Journal |
Volume | ISSN | Citations |
6 | 2169-3536 | 0 |
PageRank | References | Authors |
0.34 | 0 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Felipe Grijalva | 1 | 19 | 2.31 |
| Luiz Martini | 2 | 14 | 1.87 |
| Bruno Masiero | 3 | 3 | 2.31 |
| Siome Goldenstein | 4 | 618 | 47.43 |