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Enhancement of Voice Quality and Bit-rate Reduction by Prosodic Control in G.723.1 Vocoder
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作者 Jong-kuk KIM 《Journal of Measurement Science and Instrumentation》 CAS 2011年第2期179-183,共5页
Speech coding techniques have been studied not truly to reduce the complexity and bit rate but also to improve the sound quality. CELP type vocoder, used as standard, supports the great stead quality even low bit rate... Speech coding techniques have been studied not truly to reduce the complexity and bit rate but also to improve the sound quality. CELP type vocoder, used as standard, supports the great stead quality even low bit rate. In this paper, the preprocessing of input speech to reduce the bit rate is different from the conventional vocoder. Different kinds of parameter are used for the preprocessing compared with the other parameters to t'md the more appropriate parameter for the vocoder. The Parameters are used to synthesize the speech not to encode or decode for coding technique so we proposed the simple algorithm not to have the influence on the processing time or the computation time. The parameters in the preprocessing step are speaking rate, duration, and PSOLA technique. 展开更多
关键词 CELPocoder bit rate PSOLA technique prosodic
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作者 范岳华 范静涛 《中国京剧》 北大核心 2004年第9期36-36,共1页
关键词 京剧 唱段 念白 计时术语 演唱艺术
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