topic Butterworth filter using ippsIIRGenLowpass and ippsIIR_Direct in Intel® Integrated Performance Primitives https://community.intel.com/t5/Intel-Integrated-Performance/Butterworth-filter-using-ippsIIRGenLowpass-and-ippsIIR-Direct/m-p/780837#M1530 I'm trying to implement a Butterworth filter using ippsIIR_Direct. The only versions of this that I have in my installation of MKL are ippsIIR_Direct_16s and ippsIIR_Direct_16s_I. These take an array of filter coefficients in the parameter pTaps, which uses the data type Ipp16s. The only version of ippsIIRGenLowpass that I have is ippsIIRGenLowpass_64f, which produces filter coefficients using the data type Ipp64f. How can I convert these filter coefficients to the correct data type for use in ippsIIR_Direct?<BR /><BR />I'm using Visual C++ in Windows.<BR /><BR />John Gourlay<BR /><BR /> Thu, 28 Jul 2011 20:39:08 GMT jsgourlay 2011-07-28T20:39:08Z Butterworth filter using ippsIIRGenLowpass and ippsIIR_Direct https://community.intel.com/t5/Intel-Integrated-Performance/Butterworth-filter-using-ippsIIRGenLowpass-and-ippsIIR-Direct/m-p/780837#M1530 I'm trying to implement a Butterworth filter using ippsIIR_Direct. The only versions of this that I have in my installation of MKL are ippsIIR_Direct_16s and ippsIIR_Direct_16s_I. These take an array of filter coefficients in the parameter pTaps, which uses the data type Ipp16s. The only version of ippsIIRGenLowpass that I have is ippsIIRGenLowpass_64f, which produces filter coefficients using the data type Ipp64f. How can I convert these filter coefficients to the correct data type for use in ippsIIR_Direct?<BR /><BR />I'm using Visual C++ in Windows.<BR /><BR />John Gourlay<BR /><BR /> Thu, 28 Jul 2011 20:39:08 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Butterworth-filter-using-ippsIIRGenLowpass-and-ippsIIR-Direct/m-p/780837#M1530 jsgourlay 2011-07-28T20:39:08Z Butterworth filter using ippsIIRGenLowpass and ippsIIR_Direct https://community.intel.com/t5/Intel-Integrated-Performance/Butterworth-filter-using-ippsIIRGenLowpass-and-ippsIIR-Direct/m-p/780838#M1531 These functions are a part of the Intel Integrated Performance Primitives, which has its own forum. I'll have your question moved. Sat, 30 Jul 2011 03:30:31 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Butterworth-filter-using-ippsIIRGenLowpass-and-ippsIIR-Direct/m-p/780838#M1531 Todd_R_Intel 2011-07-30T03:30:31Z