CorrectSpeech: A Fully Automated System for Speech Correction and Accent Reduction

• URL: http://arxiv.org/abs/2204.05460v1
• Date: Tue, 12 Apr 2022 01:20:29 GMT
• Title: CorrectSpeech: A Fully Automated System for Speech Correction and Accent Reduction
• Authors: Daxin Tan, Liqun Deng, Nianzu Zheng, Yu Ting Yeung, Xin Jiang, Xiao Chen, Tan Lee
• Abstract summary: The proposed system, named CorrectSpeech, performs the correction in three steps. The quality and naturalness of corrected speech depend on the performance of speech recognition and alignment modules. The results demonstrate that our system is able to correct mispronunciation and reduce accent in speech recordings.
• Score: 37.52612296258531
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: This study extends our previous work on text-based speech editing to developing a fully automated system for speech correction and accent reduction. Consider the application scenario that a recorded speech audio contains certain errors, e.g., inappropriate words, mispronunciations, that need to be corrected. The proposed system, named CorrectSpeech, performs the correction in three steps: recognizing the recorded speech and converting it into time-stamped symbol sequence, aligning recognized symbol sequence with target text to determine locations and types of required edit operations, and generating the corrected speech. Experiments show that the quality and naturalness of corrected speech depend on the performance of speech recognition and alignment modules, as well as the granularity level of editing operations. The proposed system is evaluated on two corpora: a manually perturbed version of VCTK and L2-ARCTIC. The results demonstrate that our system is able to correct mispronunciation and reduce accent in speech recordings. Audio samples are available online for demonstration https://daxintan-cuhk.github.io/CorrectSpeech/ .

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