RoughHotwordRecorder.m

-(void) microphone:(EZMicrophone *)microphone
  hasAudioReceived:(float **)buffer
    withBufferSize:(UInt32)bufferSize
withNumberOfChannels:(UInt32)numberOfChannels {
    dispatch_async(dispatch_get_main_queue(),^{
        NSLog(@"\tbuffer size %ld", (long)bufferSize);
        float buffInternal[557] = { 0 };
        float *buffCopy[1] = {buffInternal};
        memcpy(buffCopy, buffer, sizeof(buffCopy));
        NSLog(@"first buffCopy %f", *buffCopy[0]);
        int result = _snowboyDetect->RunDetection(buffer[0], bufferSize);
        if (result == 1) {
            self.detected.text = @"Hotword Detected";
            detection_countdown = 30;
            [[AudioCortexTransport sharedInstance] queueSampleBuffersToCortex:buffCopy
                                                                   bufferSize:bufferSize
                                                                     channels:numberOfChannels];
        } else {
            if (detection_countdown == 0){
                self.detected.text = @"No Hotword Detected";
            } else {
                detection_countdown--;
                [[AudioCortexTransport sharedInstance] queueSampleBuffersToCortex:buffCopy
                                                                       bufferSize:bufferSize
                                                                         channels:numberOfChannels];
            }
        }
    });
}