Title
Multi-User Voicefilter-Lite via Attentive Speaker Embedding
Abstract
In this paper, we propose a solution to allow speaker conditioned speech models, such as VoiceFilter-Lite, to support an arbitrary number of enrolled users in a single pass. This is achieved via an attention mechanism on multiple speaker embeddings to compute a single attentive embedding, which is then used as a side input to the model. We implemented multi-user VoiceFilter-Lite and evaluated it for three tasks: (1) a streaming automatic speech recognition (ASR) task; (2) a text-independent speaker verification task; and (3) a personalized keyphrase detection task, where ASR has to detect keyphrases from multiple enrolled users in a noisy environment. Our experiments show that, with up to four enrolled users, multi-user VoiceFilter-Lite is able to significantly reduce speech recognition and speaker verification errors when there is overlapping speech, without affecting performance under other acoustic conditions. This attentive speaker embedding approach can also be easily applied to other speaker-conditioned models such as personal voice activity detection (VAD) and personalized ASR.
Year
DOI
Venue
2021
10.1109/ASRU51503.2021.9687870
2021 IEEE Automatic Speech Recognition and Understanding Workshop (ASRU)
Keywords
DocType
ISBN
VoiceFilter-Lite,speaker embedding,attention mechanism,keyphrase detection
Conference
978-1-6654-3740-0
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Rajeev Rikhye100.34
Quan Wang211520.15
Qiao Liang37719.86
Yanzhang He46416.36
Ian McGraw525324.41