Error in resampling function

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Cheng-Ling Kuo
Cheng-Ling Kuo 2024-1-26
评论： Paul 2024-1-29
I try to change sampling rate from 4.8kHz to 5kHz
fs=4800;
t1 = 0:1/fs:1;
x = sin(t1);
x2=resample(x,4800,5000);
But I get error
Incorrect number or types of inputs or outputs for function resample.
How to solve it?
Even I used
[p,q]=rat(5000/4800)
x3=resample(x,p,q);
It seems the same error!
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Cheng-Ling Kuo
Cheng-Ling Kuo 2024-1-29
编辑：Cheng-Ling Kuo 2024-1-29
I got the following message.
fs=4800;
t1 = 0:1/fs:1;
x = sin(t1);
class(x)
which resample(x,4800,5000)
ans =
'double'
'resample(x,4800,5000)' not found.
Paul
Paul 2024-1-29
So, if trying to execute that resample command it resolves to the timeseries method. But the which command doesn't find anything. No idea what could be the problem.

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采纳的回答

Sulaymon Eshkabilov
Ran in:
If you want to use fs = 5000 Hz, then the command syntax has to be resample(x_siganl, time, fs_new) This is how it should be done:
fs=4800;
t1 = 0:1/fs:1;
x = sin(t1);
fs_new = 5e3;
x2=resample(x,t1,fs_new);
which resample(x,t1,fs_new)
/MATLAB/toolbox/signal/signal/resample.m
scatter(t1, x)
hold on
t2 = 0:1/fs_new:1;
scatter(t2, x2(1:end-1))
legend('Original Data', 'Resampled Data', 'Location', 'Best')
grid on
xlabel('t')
ylabel("x & x_{resampled}")
%% View a small portion of the data:
figure
scatter(t1, x)
hold on
t2 = 0:1/fs_new:1;
scatter(t2, x2(1:end-1))
legend('Original Data', 'Resampled Data', 'Location', 'Best')
grid on
xlabel('t')
ylabel("x & x_{resampled}")
xlim([0.95 1])

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