Problem in Child Gender Classification using Speech

Dear all, pls help me out, I'm coding Gender Classification from children speech.

When I extracted MFCC features I have got that in 3D, MFCC=5023x14x2

and pitch=5023x2. Now I want to concatenate both pitch and MFCC for labeling but I'm getting an error here as "dimension of array is not consistent".

So I thought of using this

melC_1=melC(:,1:14);    %% Changed dimension of MFCC from 3D to 2D = 5023 x 14
f0_1=f0(:,1);           %% Pitch is 5023 x 1
feat = [melC1, f0_1];   %% Concatenated 

My actual problem: Am I correct in reducing the dimension like shown above? Because I'm getting very much less accuracy when I use the above concatenation.

Answer 1

[Image Analyst]

What does

size(melC_1)
size(f0_1)

show? Don't use a semicolon so that the results will show up in the command window. Evidently the sizes are not what you thought.

If you went from 3-D to 2-D you might need to use squeeze():

melC_1 = squeeze(melC(:, 1 : 14));  %% Changed dimension of MFCC from 3D to 2D = 5023 x 14
f0_1 = f0(:, 1);                    %% Pitch is 5023 x 1
feat = [melC1, f0_1];               %% Concatenated 

[Kodali Radha]

Thank you for the immediate response, it worked.