Title
A HIERARCHICAL SUBSPACE MODEL FOR LANGUAGE-ATTUNED ACOUSTIC UNIT DISCOVERY
Abstract
In this work, we propose a hierarchical subspace model for acoustic unit discovery. In this approach, we frame the task as one of learning embeddings on a low-dimensional phonetic subspace, and simultaneously specify the subspace itself as an embedding on a hyper-subspace. We train the hyper-subspace on a set of transcribed languages and transfer it to the target language. In the target language, we infer both the language and unit embeddings in an unsupervised manner, and in so doing, we simultaneously learn a subspace of units specific to that language and the units that dwell on it. We conduct experiments on TIMIT and two low-resource languages: Mboshi and Yoruba. Results show that our model outperforms major acoustic unit discovery techniques, both in terms of clustering quality and segmentation accuracy.
Year
DOI
Venue
2021
10.1109/ICASSP39728.2021.9414899
2021 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP 2021)
Keywords
DocType
Citations 
acoustic unit discovery, hierarchical subspace model, unsupervised learning
Conference
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Bolaji Yusuf113.72
Lucas Ondel2357.16
Lukas Burget358174.84
Jan Cernocký41273135.94
Murat Saraclar566962.91