code for simultaneous sound recording and playing

I have been using MATLAB for processing sound file. i used these two codes for reading sound file from mic. But in both codes i can only process or rather plot the sound file only after it completes recording.

rec1 = audiorecorder;
recordblocking(rec1, 15);
play(rec1);

and the second one is

AI = analoginput('winsound');
>> addchannel(AI, 1);
>>fs=11000
>> set (AI, 'SampleRate', fs)
>> t=10
>> set(AI, 'SamplesPerTrigger', t*fs);
>> start(AI);
>> data = getdata(AI);

but i need to plot the sound file while it is getting recorded. so someone please give me the modified code or some suggestion for that.

Answer 1

[Walter Roberson]

Reduce your SamplesPerTrigger and loop on the getdata()

Answer 2

[Sean de Wolski]

I would highly recommend reading and browsing through some of the demos in the DAQ toolbox.

demo toolbox 'data acquisition'