期刊
INTERSPEECH 2021
卷 -, 期 -, 页码 4204-4208出版社
ISCA-INT SPEECH COMMUNICATION ASSOC
DOI: 10.21437/Interspeech.2021-204
关键词
keyphrase detection; streaming; speaker verification; speaker separation; adaptive noise cancellation
This paper introduces a streaming keyphrase detection system that uses a text-independent speaker verification model, speaker separation model, and adaptive noise cancellation algorithm to effectively detect keyphrases under noisy conditions. The experiments show significant reduction in false triggering rate and false rejection rate with the implementation of these models and algorithms.
In this paper, we introduce a streaming keyphrase detection system that can be easily customized to accurately detect any phrase composed of words from a large vocabulary. The system is implemented with an end-to-end trained automatic speech recognition (ASR) model and a text-independent speaker verification model. To address the challenge of detecting these keyphrases under various noisy conditions, a speaker separation model is added to the feature frontend of the speaker verification model, and an adaptive noise cancellation (ANC) algorithm is included to exploit cross-microphone noise coherence. Our experiments show that the text-independent speaker verification model largely reduces the false triggering rate of the keyphrase detection, while the speaker separation model and adaptive noise cancellation largely reduce false rejections.
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