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The system and method in order to improve the quality of the coded sound where background noise coexists

机译:一种在背景噪声共存的情况下提高编码声音质量的系统和方法

摘要

(57) Abstract It is the system and method in order to improve the quality of the coded sound where background noise coexists. For example, only decoding synthesizing the parameter where this invention, through telecommunication network, receives the coded aural signal, next, is included and differs in that, it generates the synthetic speech signal. This invention decides the non audio period which is displayed inside the synthetic speech signal. The non audio period which is decided next, is utilized in order to fill the background noise which is simulated to the output signal. Furthermore, in addition non audio period, it is used in order to decide when it should combine the background noise which is simulated with the audio period of the synthetic speech signal, by this invention. The result of this invention it is the synthetic speech signal where the output signal which is obtained, the background noise which exists substantially between audio periods because of the existence which contrast, background noise continues, is audible more naturally and realistically in the ear of the person and improves.
机译:(57)<摘要>这是一种在背景噪声共存的情况下提高编码声音质量的系统和方法。例如,仅包括合成参数的解码,其中本发明通过电信网络接收编码的音频信号,其次是包括在内,并且不同之处在于,它生成合成语音信号。本发明确定了在合成语音信号内显示的非音频周期。接下来确定的非音频周期用于填充模拟输出信号的背景噪声。此外,根据本发明,除了非音频时段外,还用于确定何时应将模拟的背景噪声与合成语音信号的音频时段进行组合。本发明的结果是合成语音信号,其中获得的输出信号,由于对比度的存在而基本上存在于音频周期之间的背景噪声,背景噪声持续存在,从而在听觉上更自然和更真实地被听到。人并提高。

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