Math Forum Discussions

Animesh Pandey

Posts: 63
Registered: 12/22/10

Integrating C#/Matlab !! ?? Errors !
Posted: Jul 13, 2011 8:00 AM

Plain Text

I used the Matlab help to integrate Matlab functions in C#. I was successful in making an assembly for the m-file given below !

read_aud.m:
----------------------------------------------------------------------------------------------------------------
% Reading the wav-file ....
% 'a' is a string that represents the path of the *.wav file
function read_aud(a)
[y f] = wavread(a);

t = 0:1/f:(length(y)-1)/f;
plot(t, y), grid on;

n = length(y)-1;
t1 = 0:f/n:f;
fou = abs(fft(y));
figure, plot(t1,fou), grid on;
----------------------------------------------------------------------------------------------------------------
This is the main C# code !

using System;
using MathWorks.MATLAB.NET.Utility;
using MathWorks.MATLAB.NET.Arrays;
using readAud;

[assembly: NativeGC(true, GCBlockSize = 25)] // Set native memory management block size to 25 MB.

namespace readAud
{
/// <summary>
/// This application demonstrates plotting a .wav file in
/// time-domain and its FFT also !
/// </summary>
class readAud
{
#region MAIN

/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main(string[] args)
{
try
{
string url = @"\\test.wav";

// Create a new signalAndFft object
signalAndFft plotter = new signalAndFft();

// Casting a string to an MWCharArray which is to be passes as an argument in read_aud.m
plotter.read_aud((MWCharArray)url);

Console.ReadLine(); // Wait for user to exit application
}

catch (Exception exception)
{
Console.WriteLine("Error: {0}", exception);
}
}

#endregion
}
}

The exception that I got was :
Could not load type 'readAud.signalAndFft' from assembly 'readAud, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.

What could be the reason ??

The project can be downloaded from
"http://www.mediafire.com/download.php?reby2cc6hdglsir"

Please help !