Hello Gerv, Do you have a 'speex' Code Composer v2 project folder for the 5510 dsk? If i can get my environment configured correctly, I think I can get a completer build. I've taken the su-folders out of the speex-1-1-7 folder and placed them within a CCSv 2.0 project. I have added 'include' paths and 'Define Symbols' under the Project->Build-Options->Compiler->Preprocessor. I am using the testenc.c as my 'main' for now. I want to encode voice data and then use the 'foobar200' to decode it. Any help would be appreciated. Frank