Error in c# connecting between matlab and C#

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Nada Gamal
Nada Gamal 2011-5-4
Hi, Please anyone can solve this error .In connecting between C# and matlab . I don't usderstand the error .
See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
************ Exception Text ************ System.Exception:
... MWMCR::EvaluateFunction error ... Error using ==> vertcat CAT arguments dimensions are not consistent..
at MathWorks.MATLAB.NET.Utility.MWMCR.EvaluateFunction(String functionName, Int32 numArgsOut, Int32 numArgsIn, MWArray[] argsIn)
at MathWorks.MATLAB.NET.Utility.MWMCR.EvaluateFunction(String functionName, MWArray[] argsIn)
at com.speechR.SpeechR.Recognition(MWArray speechIn, MWArray silence)
Thanks a lot:)
Nada Gamal

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回答（1 个）

Kaustubha Govind
Kaustubha Govind 2011-5-4
It looks like the inputs that you are providing are causing a "vertcat CAT arguments dimensions are not consistent" error from MATLAB. It is hard to tell without looking at your code, but you may have a call to VERTCAT, or a statement that performs concatenation using something like:
out = [in1 in2];
Do you have the original MATLAB code? If yes, try constructing the same inputs in MATLAB and invoke the function to debug.
  2 个评论
Nada Gamal
Nada Gamal 2011-5-4
Hi,
Thanks for you reply .
C# code:
public String recognition()
{
String[] s ={ "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten", "Yes", "No", "Hello", "Open", "Close", "Start", "Stop", "Dial", "On", "Off" };
SpeechR speech = new SpeechR();
// string path = Application.StartupPath;
WaveReader wr1 = new WaveReader(File.OpenRead( @"C:\SpeechData\Nada1\1_12.wav"));
IntPtr format = wr1.ReadFormat();
byte[] data1 = wr1.ReadData();
wr1.Close();
WaveReader wr2 = new WaveReader(File.OpenRead(@"C:\SpeechData\silen.wav"));
IntPtr format2 = wr2.ReadFormat();
byte[] data2 = wr2.ReadData();
wr2.Close();
MWArray output = (MWArray)speech.Recognition((MWNumericArray)data1, (MWNumericArray)data2);
String str="";
for (int i = 1; i <= s.Length; i++)
{
if ((MWNumericArray)i == output)
{
str = s[i];
}
}
return str;
}
And Matlab Code is :
function[Modal]=Recognition(speechIn,silence)
% clear all;
% close all;
ncoeff = 13; %Required number of mfcc coefficients
N = 20; %Number of words in vocabulary
k = 3; %Number of nearest neighbors to choose
fs=16000; %Sampling rate
duration1 = 0.15; %Initial silence duration in seconds
duration2 = 2; %Recording duration in seconds
G=2; %vary this factor to compensate for amplitude variations
NSpeakers = 6; %Number of training speakers
% fprintf('Press any key to start %g seconds of speech recording...', duration2);
% pause;
% silence = wavrecord(duration1*fs, fs);
% fprintf('Recording speech...');
% speechIn = wavrecord(duration2*fs, fs); % duration*fs is the total number of sample points
% fprintf('Finished recording.\n');
% fprintf('System is trying to recognize what you have spoken...\n');
speechIn1 = [silence;speechIn]; %pads with 150 ms silence
speechIn2 = speechIn1.*G;
speechIn3 = speechIn2 - mean(speechIn2); %DC offset elimination
speechIn = nreduce(speechIn3,fs); %Applies spectral subtraction
rMatrix1 = mfccf(ncoeff,speechIn,fs); %Compute test feature vector
rMatrix = CMN(rMatrix1); %Removes convolutional noise
Sco = DTWScores(rMatrix,N); %computes all DTW scores
[SortedScores,EIndex] = sort(Sco); %Sort scores increasing
K_Vector = EIndex(1:k); %Gets k lowest scores
Neighbors = zeros(1,k); %will hold k-N neighbors
%Essentially, code below uses the index of the returned k lowest scores to
%determine their classes
for t = 1:k
u = K_Vector(t);
for r = 1:NSpeakers-1
if u <= (N)
break
else u = u - (N);
end
end
Neighbors(t) = u;
end
%Apply k-Nearest Neighbor rule
Nbr = Neighbors
%sortk = sort(Nbr);
[Modal,Freq] = mode(Nbr); %most frequent value
%Word = strvcat('One','Two','Three','Four','Five','Six','Seven','Eight','Nine','Ten','Yes','No','Hello','Open','Close','Start','Stop','Dial','On','Off');
% if mean(abs(speechIn)) < 0.01
% fprintf('No microphone connected or you have not said anything.\n');
% elseif ((k/Freq) > 2) %if no majority
% fprintf('The word you have said could not be properly recognised.\n');
% else
% fprintf('You have just said %s.\n',Word(Modal,:)); %Prints recognized word
% c=Word(Modal,:); %match the number of file with word
%end
Thanks a lot
Nada Gamal :)
Kaustubha Govind
Kaustubha Govind 2011-5-4
My best bet is that the error comes from:
speechIn1 = [silence;speechIn];
If silence and speechIn have different sizes, then this works only if they are both column vectors. Not sure if they are passed in as row vectors from C# - you could try adding the following lines to the top of the MATLAB function, recompile, and try this again:
% Convert silence and speechIn to column vectors
silence = reshape(silence, [numel(silence) 1]);
speechIn = reshape(speechIn, [numel(speechIn) 1]);

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