char wavFile[FILENAME_MAX];
char flacFile[FILENAME_MAX];
const char* fileRoot = getTmpDir();
err = snprintf(wavFile, FILENAME_MAX, "%s/XXXXXXXXX.wav", fileRoot);
err = snprintf(wavFile, FILENAME_MAX, "%s/XXXXXXXXX.flac", fileRoot);
err = mkstemp(wavFile);
err = mkstemp(flacFile);