Bandwidth Extension of Speech Using Perceptual Criteria is popular PDF and ePub book, written by Visar Berisha in 2022-06-01, it is a fantastic choice for those who relish reading online the Technology & Engineering genre. Let's immerse ourselves in this engaging Technology & Engineering book by exploring the summary and details provided below. Remember, Bandwidth Extension of Speech Using Perceptual Criteria can be Read Online from any device for your convenience.
Bandwidth Extension of Speech Using Perceptual Criteria Book PDF Summary
Bandwidth extension of speech is used in the International Telecommunication Union G.729.1 standard in which the narrowband bitstream is combined with quantized high-band parameters. Although this system produces high-quality wideband speech, the additional bits used to represent the high band can be further reduced. In addition to the algorithm used in the G.729.1 standard, bandwidth extension methods based on spectrum prediction have also been proposed. Although these algorithms do not require additional bits, they perform poorly when the correlation between the low and the high band is weak. In this book, two wideband speech coding algorithms that rely on bandwidth extension are developed. The algorithms operate as wrappers around existing narrowband compression schemes. More specifically, in these algorithms, the low band is encoded using an existing toll-quality narrowband system, whereas the high band is generated using the proposed extension techniques. The first method relies only on transmitted high-band information to generate the wideband speech. The second algorithm uses a constrained minimum mean square error estimator that combines transmitted high-band envelope information with a predictive scheme driven by narrowband features. Both algorithms make use of novel perceptual models based on loudness that determine optimum quantization strategies for wideband recovery and synthesis. Objective and subjective evaluations reveal that the proposed system performs at a lower average bit rate while improving speech quality when compared to other similar algorithms.
Detail Book of Bandwidth Extension of Speech Using Perceptual Criteria PDF
- Author : Visar Berisha
- Release : 01 June 2022
- Publisher : Springer Nature
- ISBN : 9783031015212
- Genre : Technology & Engineering
- Total Page : 71 pages
- Language : English
- PDF File Size : 20,6 Mb
If you're still pondering over how to secure a PDF or EPUB version of the book Bandwidth Extension of Speech Using Perceptual Criteria by Visar Berisha, don't worry! All you have to do is click the 'Get Book' buttons below to kick off your Download or Read Online journey. Just a friendly reminder: we don't upload or host the files ourselves.