Win32 Specific options In order to enable the following options within Speex, you will need to manually edit the project options for the appropriate VC configuration. These macros can be specified by adding them as "Preprocessor Definitions" under the appropriate Configuration's project options. If you don't know how to do this, please check your Visual C documentation. Feature: Intel Streaming SIMD Extensions - SSE - macro: USE_SSE Fixed point - macro: FIXED_POINT Epic 48 - macro: EPIC_48K Note: USE_SSE and FIXED_POINT are mutually exclusive.