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Silence Encoding Technique for Compressing Digital Speech Signal | ||
| Alustath | ||
| Article 1, Volume 2, Issue 204, 2018, Pages 201-218 | ||
| Author | ||
| Falah Mahdi Abdullah | ||
| Abstract | ||
| Conventional methods of coding the time waveform of a speech signal are used to reduce the data rate. However, it is to be expected that these simple coding techniques will be superseded by more complex coding methods that may give much more substantial reduction in the data rate for accepted level of degradation in speech quality. Within the framework of this paper, a new perceptive silence encoding technique for compressing the digital speech signal is introduced. First, an overview of some basic concepts involved with natural of digital speech and digital speech coding paradigm are presented. Then, a quantitative analysis for the digital speech waveform signal is conducted to emphasis the powerful utilization of the proposed coders. An efficient preprocessing process is established to perform the deletion of the nonessential acoustic material from the speech waveform . The major aim of designing the silence encoding system is to satisfy the following: 1.Smoothing the output speech signal by determine the noise within the waveform and substitute it with a value that do not have any relation with the noise value. 2.Reduce the cost that encountered in the speech compression process and this is can be established by compressing the voiced speech only and left the unvoiced speech without any processing. | ||
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