Record audio simultaneously from two kinect sensors at same time on MATLAB?

Hello i need to record sound using kinect's microphones on matlab but i want to record using two kinects.. When i record using two kinects they have latency of almost 1 second between them. it seems like first kinect works for first second(time) and swap to second kinect for second second(time). i mean if i record for 2 seconds then first second only one kinect works and another one for next second.

maybe they spend one second to swap between two kinects like swapping between two channels.

so i need to record at same time.. is it possible?

my code is:

k1 = dsp.AudioRecorder('DeviceName','Microphone Array (Kinect USB Audio)',...
    'NumChannels',4,'SampleRate',16000,'SamplesPerFrame',16000,'OutputDataType','single');
k2 = dsp.AudioRecorder('DeviceName','Microphone Array (2- Kinect USB Audio)',...
    'NumChannels',4,'SampleRate',16000,'SamplesPerFrame',16000,'OutputDataType','single');
f = figure(1);
lim = 0.5;
    while (true)
        key = get(f,'CurrentCharacter');
        if (key == 'e')
            break;
        else
        audio1 = step(k1); 
        audio2 = step(k2);
        ch11 = audio1(:,1);
        ch21 = audio2(:,1);
        ch14 = audio1(:,4);
        ch24 = audio2(:,4);

          subplot(411);plot(ch11,'r');ylim([-lim lim]);
          subplot(412);plot(ch14,'m');ylim([-lim lim]);
          subplot(413);plot(ch21,'b');ylim([-lim lim]);
          subplot(414);plot(ch24,'g');ylim([-lim lim]);

          drawnow;
          end     
          release(k1);
          release(k2);
          clear ch11 ch21 ch14 ch24
       end