Audio Recording-Mute Detection

During language transmission, if data packets are sent each time, the packet can be muted before being sent. Principle: checks whether all data is within the same range and counts the amount of data that is not within the range. Even if the percentage is used, it is set to mute if a specified proportion is printed. // 8-bit audio Function twavein. detectsilence (data: pbyte; datalen: DWORD): Boolean; Const Threshold: DWORD = 10; // range Hitpercent: DWORD = 85; // Error Rate VaR I: integer; Dwhit: DWORD; Begin Dwhit: = 0; For I: = 0 to DataLen-1 do Begin If (Data ^ <= threshold) or (Data ^> = (255-threshold) then Begin INC (dwhit ); End; INC (data ); End; If (dwhit * 100)> = (hitpercent * datalen) then Result: = true Else Result: = false; End;