关键词: 云制造, 云计算, 云终端, 自然人机交互, 语音交互, 语音增强, 谱减法

Abstract: To use the resources and services of cloud manufacturing through cloud terminal,the natural man-machine interaction mode was researched.Thus the resources of cloud manufacturing could be used efficiently by multiple channels.Speech interaction is the most natural interactive channel for human,and the natural language signal must be preprocessed in practical application to obtain clear speech signal from noisy speech.An improved spectral subtraction speech enhancement algorithm based on auditory masking effect was proposed.A new speech endpoint detection method was introduced to overcome the music noise influence and to extract the pure speech.The simulation results verified the effectiveness of the proposed algorithm.

Key words: cloud manufacturing, cloud computing, cloud terminal, natural man-machine interaction, speech interaction, speech enhancement, spectral subtraction