Design of IP Media Server for Voice Conference Application

Wang, Qing; Zhu, Zhenbo; Ge, Yi; Shao, Ling

doi:10.1109/apccas.2006.342230

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2007

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“…Compared with software solution, the most advantage of hardware solution is the computation capability since it's designed dedicated for specific purpose. Using multiple DSPs to co-process the stream data can significantly improve the computation capacity [2]. However, both of the software and hardware solutions face the challenges of performance/cost (price or watt).…”

Section: Introductionmentioning

confidence: 99%

Speech Codec Optimization Based on Cell Broadband Engine

Zhu

Wang

Bao

et al. 2007

2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07

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Cell broadband engine (CBE) is a multi-core processor jointly developed by Sony, Toshiba and IBM. The multi-SPE architecture makes it powerful for streaming media processing, such as voice over IP application. In this paper, a CBE based IP media server (IMS) architecture is proposed and the workloads of ITU-T G.723.1 and GSM-AMR encoder on CBE are analyzed with some preliminary optimization result from both CBE simulator and real CBE hardware. Branch instruction reduction, data level parallelism (SIMD), instruction level parallelism and aligned SPU local store access techniques are applied in our single precision floating-point based reference software optimization on Cell. The performance we have achieved demonstrates the Cell competence for computation intensity applications in telecom industry

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Section: Introductionmentioning

confidence: 99%