private doublecalculateVolume(byte[] buffer){
double sumVolume = 0.0;
double avgVolume = 0.0;
double volume = 0.0;
for(int i = 0; i < ; i+=2){
int v1 = buffer[i] & 0xFF;
int v2 = buffer[i + 1] & 0xFF;
int temp = v1 + (v2 << 8);// 小端
if (temp >= 0x8000) {
temp = 0xffff - temp;
}
sumVolume += (temp);
}
avgVolume = sumVolume / / 2;
volume = Math.log10(1 + avgVolume) * 10;
return volume;
}