MIPS,MCPS, MHz for voice codec

MIPS = Total Instructions*Sampling frequency/(No of frames * Samples per frame*100000)

MCPS = Total Cycles*Sampling frequency/(No of frames * Samples per frame*100000)
MHz is same as MCPS

 

And as we know , some instructions may take more than 1 cycle ,so sometimes MIPS >= MCPS.

But as the Parallel Processing technique developing, one cycle can excute more than one  instruction, so sometime MCPS>=MIPS


Also some time the frame length is not uniform, so the they will be

 

MIPS = Total Instructions/(Total playout time *100000)

MHz=MCPS = Total Cycles/(Total playout time*100000)

 

For the voice codec excute speed performance, normally we called it is MIPS, but actually means MCPS/MHz now. It is the biggest MHz in one frame, or worst case.  

posted @   c6000  阅读(2324)  评论(1编辑  收藏  举报
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