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Automatic speech recognition with robot noise |
| WANG Jianrong1, ZHANG Ju1, LU Wenhuan2, WEI Jianguo2, DANG Jianwu1 |
1. School of Computer Science and Technology, Tianjin University, Tianjin 300072, China;
2. School of Computer Software, Tianjin University, Tianjin 300072, China |
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Abstract Robots inevitably produce noise when they are moving any part of their body. Such noise is caused by the various body joint motors as well as the CPU cooling fans. Moreover, these noises are easily captured by the robots' microphones because they are closer to the microphones than the target speech source. This paper presents a de-noising method using the spectral subtraction, joint noise template substraction, labeled area cepstral mean substraction and multi-condition training to estimate and suppress robot noise. Tests show that this method significantly reduces the effect of robot noise which enhances the automatic speech recognition.
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| Keywords
robot
speech recognition
speech enhancement
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Issue Date: 15 February 2017
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2017,
Vol. 57
