PROBLEM WITH welchparse>segment_info

Hello everybody, recently i m working on speech analysis. I cut many audio files into vowel segment in second. But the issue is that i cannot work properly with the segmented vowels audios such as extracted their pitch, mfcc and other features. I attached to my problem the code of extracting pitch from those segmented vowels audios. Below is the code and the error when i tried to extract pitch features from those segmented vowels audios. I need to know where the error come from and how to fix it. Thank you for your answers and help

file = dir ('E:\I\*.wav');

M= length (file)

for k = 1:36

%pitch extraction

[speech,Fs]= audioread(fullfile('E:\I\',file(k).name));

a=(speech);

ptch = pwelch(speech,Fs);

signalpitch(k,:) = ptch;

extractpitch = signalpitch (:,:);

end

Below is the error

Error using welchparse>segment_info (line 178)

The length of the segments cannot be greater than the length of the input signal.

Error in welchparse (line 32)

[L,noverlap,win] = segment_info(M,win,noverlap);

Error in welch (line 39)

[x,~,~,y,~,win,winName,winParam,noverlap,k,L,options] = ...

Error in pwelch (line 148)

[varargout{1:nargout}] = welch(x,esttype,varargin{:});

[Mathieu NOE]

hello

it sound bizarre to me that you don't assign any value for nfft, overlap for pwelch

maybe you should have a look at

https://stackoverflow.com/questions/22619684/how-can-i-get-frequency-and-pitch-from-a-monophonic-wav-file-using-matlab

[Camille Dingam]

Hello, thank you for your answer and i will check the link you sent. But the same code can work properly with the entire word and it is impossible with vowels

[Camille Dingam]

I just come to try and it is still showing the same error as above, thank you for more light

[Mathieu NOE]

hi

can you send me a wav file + your latest version of the code ?

all the best

[Camille Dingam]

Through your email please?

[Mathieu NOE]

hello

yes , send it to : [e-mail]

[Camille Dingam]

Okay, thank you