#pragma once #include #include #define ZERO_CROSSING_THRESHOLD 0.2f #define ZERO_SILENCE_THRESHOLD 0.005f #define ZERO_SENSITIVITY 5 #define ENTROPY 10.0f class QSpeechDetect{ private: UINT uSamples, uBits, uChannels, uLength, uTotalSamples, uTotalSamplesPerChannel; PSHORT pData, pTable; FLOAT fZeroThreshold; public: QSpeechDetect(PBYTE pBuffer, UINT uSamplesPerSecond, UINT uBitsPerSecond, UINT uRecordChannels, UINT uBufLen, FLOAT fThresh); ~QSpeechDetect(); void SetBuffer(PBYTE pBuffer, UINT uBufLen); BOOL IsVoice(); private: FLOAT log2(FLOAT x); }; .