how to plot the required data from two analog input separately?

As the program below, it get the required data from two analog inputs and plot the both datum in a graph. However, i want to plot the required data from two analog inputs separately? Can any one teach me?THX~

AI=analoginput('winsound',0);

chan=addchannel(AI,1:2);

get(AI);

duration=1;

SampleRate=44100;

set(AI, 'SampleRate', SampleRate);

set(AI, 'SamplesPerTrigger', duration*SampleRate);

set(AI, 'TriggerType', 'Manual');

start(AI);

trigger(AI);

data=getdata(AI);

plot(data);

wait(AI,2);

delete(AI);

[Gerd]

Do you want to have two separate plots or 2 plots in one figure?

Answer 1

[Parag]

Hi, to plot the data from two analog input channels separately, you need to extract each channel's data and use separate “plot” commands. Here’s how you can modify your MATLAB code:

AI = analoginput('winsound', 0);
chan = addchannel(AI, 1:2);
get(AI);

% Define parameters
duration = 1;
SampleRate = 44100;

set(AI, 'SampleRate', SampleRate);
set(AI, 'SamplesPerTrigger', duration * SampleRate);
set(AI, 'TriggerType', 'Manual');

% Start and trigger the acquisition
start(AI);
trigger(AI);

% Get data
data = getdata(AI);

% Extract channels
channel1 = data(:,1);  % First column for channel 1
channel2 = data(:,2);  % Second column for channel 2

% Time vector for x-axis
time = (0:length(channel1)-1) / SampleRate;

% Plot separately
figure;
subplot(2,1,1);
plot(time, channel1);
title('Analog Input Channel 1');
xlabel('Time (s)');
ylabel('Amplitude');
grid on;

subplot(2,1,2);
plot(time, channel2);
title('Analog Input Channel 2');
xlabel('Time (s)');
ylabel('Amplitude');
grid on;

% Cleanup
wait(AI, 2);
delete(AI);