how can extract data from txt file?

I am trying to read a specific name from the text file which correspond to mseconds( for example Jim and John occurances) and depends of the timing correspond to the name I would like to extract an audio signal but only the specified mseconds which are read from the txt file.

my current code:

filename= 'test.txt';
[y, Fs]= audioread(filename);
cutData= y(((Fs*(652-1))+1:Fs*(767-1)/2-10,:);
plot(linspace(0.652,0.767,length(cutData)),cutData);

Answer 1

[TED MOSBY]

Hi @GreyHunter,

To extract specific audio segments based on the timing information in your text file, you'll need to read the text file, parse the timing and name information, and then extract the corresponding segments from your audio file.The steps are implemented in the code below:

% Load the audio file 
filename = 'your_audio_file.wav'; % Replace with your actual audio file 
[y, Fs] = audioread(filename); 

% Open and read the text file 
fileID = fopen('test.txt', 'r'); 
data = textscan(fileID, '%f %f %s'); 
fclose(fileID); 

% Extract columns from the text data 
startTimes = data{1}; 
endTimes = data{2}; 
names = data{3}; 

% Specify the name to extract (e.g., 'john' or 'jim') 
targetName = 'jim'; % Change to 'john' if needed 

% Loop through each entry in the text file 
for i = 1:length(names) 
    if strcmp(names{i}, targetName) 
        % Convert milliseconds to sample indices 
        startSample = round((startTimes(i) / 1000) * Fs) + 1; 
        endSample = round((endTimes(i) / 1000) * Fs); 
        
        % Extract the audio segment 
        cutData = y(startSample:endSample, :); 
        
    end 
end 

Hope this helps!