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noise dspic
Hi all
I had tried noise reduction algrothm on my digital IF processor(based on Blackfin) and get quite good result. Once I saw a appnote of noise canceller which uses microchip's dspic signal processor. I bought a dsPC30f5011 and designed a board with 16 bit codec. Then I tried the algrothm, but at last I give up trying, the RAM is only 6K Bytes, only 128 point complex FFT could be done with that ram. And, when use the library provided by PICC, the result has only 8 bits resolution. After IFFT, only 4 bit are aviliable! The play back voice is ridiculous. Is there anyone know how to do noise reduction with dsPIC?
mike
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www.ezpcb.com
High quality PCBs at most competitive price
Hi all
I had tried noise reduction algrothm on my digital IF processor(based on Blackfin) and get quite good result. Once I saw a appnote of noise canceller which uses microchip's dspic signal processor. I bought a dsPC30f5011 and designed a board with 16 bit codec. Then I tried the algrothm, but at last I give up trying, the RAM is only 6K Bytes, only 128 point complex FFT could be done with that ram. And, when use the library provided by PICC, the result has only 8 bits resolution. After IFFT, only 4 bit are aviliable! The play back voice is ridiculous. Is there anyone know how to do noise reduction with dsPIC?
mike
----------------------------------------------------------------
www.ezpcb.com
High quality PCBs at most competitive price