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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Su Yang Zong-Ge Li Yan-Qiu Chen |
| Copyright Year | 2003 |
| Description | Author affiliation: Dept. of Comput. Sci. & Eng. & Lab of Intelligent Inf. Process., Fudan Univ., Shanghai, China (Su Yang; Zong-Ge Li; Yan-Qiu Chen) |
| Abstract | The fractal dimension is useful in discriminating different textures of images. Also, the distinction between the 'texture' of speech signals and that of noise should exist because speech signals are regular 'man-made' processes and noises are random 'natural' processes. Through experiments, we found that the fractal dimension of speech signals is distinctly different from that of noise. Thus, a fractal based voice activity detector (VAD) is proposed. The experimental results show that the proposed VAD outperforms two traditional approaches based on energy and zero-crossing rate at low SNR. Applied to the Internet telephone developed by us, this VAD improves the quality of service. |
| Sponsorship | IEEE Signal Process, Soc |
| File Size | 235988 |
| File Format | |
| ISBN | 0780376633 |
| ISSN | 15206149 |
| DOI | 10.1109/ICASSP.2003.1198904 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2003-04-06 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Fractals Detectors Internet telephony Speech processing Signal processing Quality of service IP networks Feature extraction Computer science Information processing |
| Content Type | Text |
| Resource Type | Article |
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