function HPF = my_hpf(x, h)
[~, channels] = size(x);

% x is the input signal,


% h is the impulse response
% fs sample rate
if channels == 1;
    hpf_conv = conv(x, h);
    
    HPF = hpf_conv;
elseif channels == 2
        hpf_convL = x(:, 1);
    hpf_convR = x(:, 2);
    
    HPFL = conv(hpf_convL, h);
   HPFR = conv(hpf_convR, h);

    
    
    
    HPF = [HPFL, HPFR];
    
else
    error ('This function is suitable for the processing of up to 2 channel audio signal');
end
end