Real-Time Implementation AMR-WB Algorithm in TMS320VC5509A DSP

Abstract:

Adaptive multi-rate wideband (AMR-WB) speech codec is the first standard for both wired and wireless universal broadband speech codec. Real-time implementation of AMR-WB algorithm in DSP has important practical significance and will accelerate its course of practice. The paper first designed the hardware platform and system software structure for real-time implementation of the AMR-WB algorithm, then introduced the transplantation of AMR-WB algorithm to the designed hardware system. The paper next discussed the real-time implementation of optimized algorithm on the hardware platform. Objective test results indicated the decoded speeches of real-time platform were bit exactly the same as test sequences. Synthetic speeches of real-time platform were very good in restoring the speaker’s voice characteristics by good intelligibility and naturalness.

• Periodical: Advanced Materials Research (Volumes 490-495)
• Pages: 519-523
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.490-495.519
• Online since: March 2012
• Authors: Feng Lian Li, Xue Ying Zhang, Xiao Lin Du
• Keywords: AMR-WB, Assembly Optimization, Digital Signal Processor (DSP), Real-Time Implementation, TMS320VC5509A

References

[1] ITU-T, Wideband coding of speech at around 16kbit/s using Adaptive Multi-Rate Wideband (AMR-WB), ITU-T Recommendation G. 722. 2, (2003).

[2] Texas Instruments Incorporated, TMS320VC5509 Data Sheet (Rev. F), Texas Instruments Incorporated, (2004).

[3] http: /www. itu. int/itu-t/recommendations/index. aspx?ser=G.

[4] Wang Chunmei, Sun Hongbo, TMS320C55x DSP Theory and Applications, second ed., Electronic Industry Press , Beijing, (2008).

[5] 3rd generation partnership project, TS 26. 174 Adaptive Multi-Rate Wideband (AMR-WB) speech codec test sequences, (Release 9), 3rd Generation Partnership Project (3GPP), (2009).

DOI: 10.17487/rfc4083