Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Accent-Robust Automatic Speech Recognition Using Supervised and
  Unsupervised Wav2vec Embeddings   Speech recognition models often obtain degraded performance when tested on
speech with unseen accents. Domain-adversarial training (DAT) and multi-task
learning (MTL) are two common approaches for building accent-robust ASR models.
ASR models using accent embeddings is another approach for improving robustness
to accents. In this study, we perform systematic comparisons of DAT and MTL
approaches using a large volume of English accent corpus (4000 hours of US
English speech and 1244 hours of 20 non-US-English accents speech). We explore
embeddings trained under supervised and unsupervised settings: a separate
embedding matrix trained using accent labels, and embeddings extracted from a
fine-tuned wav2vec model. We find that our DAT model trained with supervised
embeddings achieves the best performance overall and consistently provides
benefits for all testing datasets, and our MTL model trained with wav2vec
embeddings are helpful learning accent-invariant features and improving
novel/unseen accents. We also illustrate that wav2vec embeddings have more
advantages for building accent-robust ASR when no accent labels are available
for training supervised embeddings.

24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex