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Port MATLAB

 
 
     
Job Summary:
 
Job Type: Project
Budget: $ 100-300
Required Skills: Audio, C++ / C, Cocoa / Obj-C, Other (Programming), Programming
Attached Files: (None)
 
Status: Closed for bidding
 
Buyer Summary:
 
Username:
CStigler  
Feedback Score: Rating: (No Feedback Yet)
Award Reliability: 1 posted 0 paid
 
Location: Pacific Palisades, United States
Member Since: January 22, 2009
 
Invited Users: There are no invited users


Description
I need to port the working MATLAB pitch correction code posted at http://cnx.org/content/m11716/latest/ and to Objective-C or C++. I will also need either implemented CAF file I/O OR for you to find a properly licensed library that will perform CAF file I/O.

You must deliver:

1) Source code that implements the algorithm to process 44.1Khz 16-bit mono sounds.
2) Source code that does CAF file I/O for 16-bit uncompressed mono sounds OR uses a properly licensed library to do this.
3) Source code of a test harness program that reads in a CAF file, corrects pitch and writes to a new CAF file.

The converted samples will be tested against the given samples by way of a 25-run ABX test with the "Why" sample. In the event of a dispute, the result will be determined by 2/3 vote between the coder, the seller, and the arbiter.

The following function should be written:

bool transform(string inputfilename, string outputfilename); (or the Objective-C equivalent)

Returns true if successful, false if there is a failure.

Go to http://cnx.org/content/m11711/latest/ for complete information about the pitch correction algorithm, sample code and sample output is available at http://www.cnx.rice.edu/content/m11716/latest/ (use the time-domain pitch detector and the PSOLA pitch shifter). I will provide CAF versions of the samples for your benefit.

Since this is targeted for the iPhone, certain licensing issues exist. Do not assume you can use LGPL libraries, because newer versions of the license prohibit static linking into proprietary code on embedded systems.

Code should be well-commented, understandable, and maintainable.


Additional information: Submitted on 01/22/2009 at 9:39 EST

I have a maximum budget of $650, that is the most I can allocate to this project.




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