How to cut audio file into segments?

I have an audio file (.wav) which I need to cut into segments. Segments (start and stop values) are stored in cell array C. I managed to get values only from one cell to cut the sound file, but I don't know how to get one by one values from cell array C and parallel cut the sound signal. Intervals in the text file look like this:

 0.300000 0.410000 ,0.41000 0.430000 ,0.95000 0.990000 ,1.21500 1.260000 ,...

In cell array C every interval is in it's own cell -

 '0.300000 0.410000', '0.41000 0.430000' , ...

I have this code:

 [data,Fs] = audioread('sound.wav');
 list = fopen('intervals.txt','r');

 for k=1:length(list)
    content = fgets(list)
    C= strsplit(content,',')% splits str at the delimiters specified by delimiter
    nums = C{1,k} % gets only data from the first cell
    x = str2num(nums) %convert from char to numeric value

    for n=1:length(x)
        start=x(1) 
        stop=x(2) 
        N = length(data);
        totaldur = N/Fs; % total duration
        t = linspace(0,totaldur,N); % create a time vector

        %logical indexing 
        seg1 = data(t>start & t<stop)
        sound(seg1) %play the segment
    end
end