https://community.intel.com/t5/Intel-Integrated-Performance/about-biquad-filter/m-p/925122#M16104 <DIV></DIV> <P>Hello,</P> <P>there is comment from IPP expert<BR /><FONT color="#000080" size="2"><BR />The right function is ippsIIR_32f()</FONT></P> <P>Due to the ippsIIRState has been initialized with BiQuads youll get BiQuad IIR filtering data.</P> <P>Regards,<BR /> Vladimir</P> Sat, 27 May 2006 01:51:00 GMT Vladimir_Dudnik 2006-05-27T01:51:00Z https://community.intel.com/t5/Intel-Integrated-Performance/about-biquad-filter/m-p/925121#M16103 <DIV>Deal all:<BR />I want to filter a float-data signal by a biquad filter.<BR />This biquad filter is 7 cascade.<BR />I initialize the filter by<BR />ppsIIRInitAlloc_BiQuad_32fc(&amp;m_pBiQuadState, tapsBq, 7, NULL);<BR />but which function is the filtering part?<BR />IIROne_BiquadDirect(Ipp16s *, , ,) and IIR_BiquadDirect(Ipp16s *,,) allow interger data.<BR />I don't want to convert the data type from float to integer.<BR />which function is the correct filtering part?<BR />Thanks!</DIV> Tue, 23 May 2006 16:00:55 GMT https://community.intel.com/t5/Intel-Integrated-Performance/about-biquad-filter/m-p/925121#M16103 weijun_buaaee 2006-05-23T16:00:55Z https://community.intel.com/t5/Intel-Integrated-Performance/about-biquad-filter/m-p/925122#M16104 <DIV></DIV> <P>Hello,</P> <P>there is comment from IPP expert<BR /><FONT color="#000080" size="2"><BR />The right function is ippsIIR_32f()</FONT></P> <P>Due to the ippsIIRState has been initialized with BiQuads youll get BiQuad IIR filtering data.</P> <P>Regards,<BR /> Vladimir</P> Sat, 27 May 2006 01:51:00 GMT https://community.intel.com/t5/Intel-Integrated-Performance/about-biquad-filter/m-p/925122#M16104 Vladimir_Dudnik 2006-05-27T01:51:00Z