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.
分类:
语音编码
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