You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: bark2frq.m
    path of file: ./repos/VAD/lib/matlab/voicebox
    
    the code of the file until where you have to start completion: function [f,c] = bark2frq(b,m)
%BARK2FRQ  Convert the BARK frequency scale to Hertz FRQ=(BARK)
%

    
function [f,c] = bark2frq(b,m)
%BARK2FRQ  Convert the BARK frequency scale to Hertz FRQ=(BARK)
%
% Inputs: b  matrix of frequencies in Bark
%         m  mode options
%            'h'   use high frequency correction from [1]
%            'l'   use low frequency correction from [1]
%            'H'   do not apply any high frequency correction
%            'L'   do not apply any low frequency correction
%            'u'   unipolar version: do not force b to be an odd function
%                  This has no effect on the default function which is odd anyway
%            's'   use the expression from Schroeder et al. (1979)
%            'g'   plot a graph
%
% Outputs: f  frequency values in Hz
%          c  Critical bandwidth: d(freq)/d(bark)

%   The Bark scale was defined by an ISO committee and published in [2]. It
%   was based on a varienty of experiments on the thresholds for complex
%   sounds, masking, perception of phase and the loudness of complex
%   sounds. The Bark scale is named in honour of Barkhausen, the creator
%   of the unit of loudness level [2]. Critical band k extend