问将"audible ticks“添加到波形以进行起始检测调试

EN

float * sample = first sample where beep is to be mixed in
float const beep_duration = desired beep duration in seconds
float const sample_rate = sampling rate in samples per second
float const frequency = desired beep frequency, Hz
float const PI = 3.1415926..
float const volume = desired beep volume
for( int index = 0; index < (int)(beep_duration * sample_rate); index++ )
{
   sample[index] += 
      sin( float(index) * 2.f * PI * sample_rate / frequency ) * volume;
}