Title
Head-Related Transfer Function Interpolation From Spatially Sparse Measurements Using Autoencoder With Source Position Conditioning
Abstract
We propose a method of head-related transfer function (HRTF) interpolation from sparsely measured HRTFs using an autoencoder with source position conditioning. The proposed method is drawn from an analogy between an HRTF interpolation method based on regularized linear regression (RLR) and an autoencoder. Through this analogy, we found the key feature of the RLR-based method that HRTFs are decomposed into source-position-dependent and source-position-independent factors. On the basis of this finding, we de-sign the encoder and decoder so that their weights and biases are generated from source positions. Furthermore, we introduce an aggregation module that reduces the dependence of latent variables on source position for obtaining a source-position-independent representation of each subject. Numerical experiments show that the proposed method can work well for unseen subjects and achieve an interpolation performance with only one-eighth measurements comparable to that of the RLR-based method.
Year
DOI
Venue
2022
10.1109/IWAENC53105.2022.9914751
2022 International Workshop on Acoustic Signal Enhancement (IWAENC)
Keywords
DocType
ISBN
head-related transfer functions,deep neural networks,autoencoder,hypernetworks,spatial audio
Conference
978-1-6654-6868-8
Citations 
PageRank 
References 
0
0.34
6
Authors
4
Name
Order
Citations
PageRank
Yuki Ito100.34
Tomohiko Nakamura2135.02
Shoichi Koyama300.68
Saruwatari, H.465290.81