if(err=snd_pcm_hw_params_set_period_time_near(_CaptureHandle,hwParams,&period_time,&dir)<0)_debugAlsa(" Cannot set period time (%s)\n",snd_strerror(err));
if(err=snd_pcm_hw_params_set_buffer_time_near(_CaptureHandle,hwParams,&buffer_time,&dir)<0)_debugAlsa(" Cannot set buffer time (%s)\n",snd_strerror(err));
if(err=snd_pcm_hw_params_get_period_size(hwParams,&period_size_in,&dir)<0)_debugAlsa(" Cannot get period size (%s)\n",snd_strerror(err));