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Design and Implement of Digital Speech Filter Based on SOPC

Author: ZhaoPeng
Tutor: LiuShuLin
School: Xi'an University of Science and Technology
Course: Microelectronics and Solid State Electronics
Keywords: Field Programmable Gate entire column Programmable System on Chip Audio signal processing Kaiser window filter
CLC: TN713.7
Type: Master's thesis
Year: 2011
Downloads: 79
Quote: 0
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Abstract


The digital voice filter is the core component of the speech signal processing . Widely used in the field of communication , speech recognition and speech enhancement . A digital filter applications targeted are strong , its performance directly determines the quality of the product , the scientific community and industry are its in-depth research , invented a variety of filters to achieve . Because the filter is the device for processing a specific frequency , so it has been not high reusability , especially for different applications , for the upgrade of the system , the profile and functional replacement problems . Moreover, since the more functional components , the system connecting the complexity and difficulty of design, testing, are great. Therefore , the use of SOC technology to reduce the complexity of the board-level system is connected using programmable devices designed adjustable performance parameters , can change the system has become the system of direction , has attracted the attention of major telecommunications manufacturers . The last few years , SOPC technology as a branch of the embedded technology is gradually coming into view . It has the ordinary CPU programmed function , but also has the hardware programmable features . If the introduction of this new technology in the field of speech signal processing , system reconfiguration and connected to the system will be an effective solution to the problem . This issue through FPGA reconfigurable features adjustable parameters , structure adjustable FPGA solutions , voice filter reconfigurable successfully resolved , and take advantage of the characteristics of SOPC , FPGA on the completion of the acquisition , processing and playback functions , greatly reducing the complexity of the system board-level design , reduce the connection of peripheral devices , and system cost . The subject concepts , algorithms, and to achieve organic integration with an FPGA chip on the system hardware and software development . Has a small, programmable , reconfigurable characteristics useful for audio signal processing research and product development reference value .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Filtering techniques,the filter >
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