Dissertation > Excellent graduate degree dissertation topics show

CELP Speech Coding Based on PLP Analysis

Author: CaiYang
Tutor: DaiBenQi
School: East China University of Science and Technology
Course: Signal and Information Processing
Keywords: CELP speech coding PLP RASTA
CLC: TN912.3
Type: Master's thesis
Year: 2013
Downloads: 8
Quote: 0
Read: Download Dissertation

Abstract


Speech coding technology make up a large proportion in communication system. With the development of the society, the speech coding technology request higher and higher. So it is necessary for speech coder with lower coding rate and higher speech quality. However, speech quality and coding rate is contradictory. Code-excited linear prediction (CELP) coding technology is a mainstream coding technology for its performance.This paper focus on improving speech quality, and research4.8KB/s code-excited linear prediction coding technology. In order to improve the quality of speech coding, this paper main focus on the speech linear prediction analysis technique, perceptually linear prediction and RASTA filter. Putting forward a RASTA-PLP-CELP coding model by using PLP analysis instead of linear prediction analysis. This model is simulated by matlab. The results show that the proposed coding model have a better speech quality than conventional one under nosiy environment, and at the same time, have the same coding rate.

Related Dissertations

  1. Compensation Methods of Different Speech Coding for Speaker Recognition,TN912.34
  2. The Studt of ILBC Speech Coding’s Key Technology and Its DSP Design and Optimization,TN912.3
  3. MELP Vocoder Optimization and Transcoding with LPC-10 Speech Coding,TN912.3
  4. Research on Very Low Bit Rate Speech Coding,TN912.3
  5. Research of Low-bit-rate Speech Coding Algorithms Based on MELP,TN912.3
  6. Design of LD-CELP Speech Coder Based on FPGA,TN912.3
  7. GSM CSD channel encrypted voice - based real-time communication technology,TN912.3
  8. Research and Implementation of Adaptive Low-Rate Speech Coding,TN912.3
  9. Research on Efficient Parameter Quantization Algorithms for Low-bit-rate Speech Coding,TN912.3
  10. Real-time Voice Transmission System Design and Software Implementation,TN912.3
  11. Research and Implementation of a Speech Codec Algorithm,TN912.3
  12. Earthquake Field Information Acquisition and Wireless Transmission System,TP274.2
  13. G.726 voice encoding Analysis Research and realization of embedded AdHoc network,TN929.5
  14. Research of Speech Codec System Based on DSP,TN912.3
  15. Research and Realization of MELP Vocoder Algorithm Based on Digital Radio,TN912.3
  16. The Hardware Design and Commissioning of Underwater Small Voice Communication Platform,TN912.3
  17. Research on Speech Coding Model of EV-CELP,TN912.3
  18. Design of Speech Coder VLSI Based on AMR Standard,TN912.3
  19. Research and Implementation of Low-Medium Rate Speech Information Hiding Algorithm,TN918.4
  20. Speech Coding Based on Instantaneous Amplitude Plus Noise Model,TN912.3
  21. Research on G.729 Speech Codec Based on TMS320-VC5402,TN912.3

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Electro-acoustic technology and speech signal processing > Speech Signal Processing
© 2012 www.DissertationTopic.Net  Mobile