Matrix dimensions must agree

I'm having trouble with my script

clc;
clear;
close all;
[audio1, Fs] = audioread('1812 overture 256.mp3');
[audio2] = audioread('1812 overture 320.mp3');
[dlsd1, dskl1, dmfcc1] = distance(audio1, audio2, Fs);

Every time I run this script I get the error:

Error using .* Matrix dimensions must agree.

Error in distance (line 21) S1=Sig1.*window;

Error in CW_2(line 6) [dlsd1, dskl1, dmfcc1] = distance(audio1, audio2, Fs);

While searching around I have seen that it may be an issue with Fs and length of clip but I have made sure that both are the same.

Any solutions?

[Jan]

The function distance is not part of the Matlab toolboxes. So you have to tell us more details about this function.