I hope you are using (planning to use) Intel Composer XE. Intel IPP is available with this package, also available as standalone.
IPP dlls are in the below mentioned directory, also you can refer to IPP user guide
There are some changes in the linking library starts from 7.0 releases. We have documented din the Knowledge Base. - http://software.intel.com/en-us/articles/selecting-the-intelr-ipp-libraries-needed-by-your-applicati...
If you are looking into speech recognition functions, these functions arenot part of IPP 7.0 release; this domain(IPPSR) will continue to be supported in the IPP 6.1 product.
Then, you have to use earlier version of IPP. If you have valid product license, then you can get earlier version from registrationcentre.intel.com.