+int ASKbiphaseDemod(const char *Cmd, bool verbose);
+int ASKDemod(const char *Cmd, bool verbose, bool emSearch, uint8_t askType);
+int ASKDemod_ext(const char *Cmd, bool verbose, bool emSearch, uint8_t askType, bool *stCheck);
+int FSKrawDemod(const char *Cmd, bool verbose);
+int PSKDemod(const char *Cmd, bool verbose);
+int NRZrawDemod(const char *Cmd, bool verbose);
+int getSamples(int n, bool silent);
+void setClockGrid(int clk, int offset);
+int directionalThreshold(const int* in, int *out, size_t len, int8_t up, int8_t down);
+extern int AskEdgeDetect(const int *in, int *out, int len, int threshold);
+//int autoCorr(const int* in, int *out, size_t len, int window);
+
+#define MAX_DEMOD_BUF_LEN (1024*128)
+extern uint8_t DemodBuffer[MAX_DEMOD_BUF_LEN];
+extern size_t DemodBufferLen;
+extern int g_DemodStartIdx;
+extern int g_DemodClock;
+extern uint8_t g_debugMode;
+#define BIGBUF_SIZE 40000