Rank: 575 based on 143 downloads (last 30 days) and 5 files submitted
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Antoine Liutkus

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Telecom ParisTech, TSI dept

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Professional Interests:
signal processing, source separation

 

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Files Posted by Antoine View all
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21 Feb 2013 Screenshot Easily store and retrieve subsets on big matrices on disk Stores columns of a matrix one at a time in hard disk and permits to easily recover subsets of it. Author: Antoine Liutkus matrix, storage, hard drive 3 0
12 Nov 2012 Screenshot Nonnegative Matrix and Tensor Factorization (NMF, NTF) with any beta-divergence very simple to use implementation of the NMF/NTF model Author: Antoine Liutkus nmf, ntf, nonnegative, matrix, tensor, audio 22 0
27 Aug 2012 Screenshot STFT, MDCT and inverses. Onset and pitch detection Short Time Fourier Transform, MDCT and their inverse. CQT. Onset and Pitch detection. Author: Antoine Liutkus fourier transform, audio, signal processing, overlap add, short term fourier tr..., stft 91 10
  • 5.0
5.0 | 2 ratings
27 Oct 2011 Screenshot Simple drums separation with NMF Illustrates the use of NMF for the separation of drums in polyphonic music Author: Antoine Liutkus source separation, audio, drums, onset, filtering, wiener 7 2
26 Oct 2011 Screenshot Practical NMF/NTF with beta divergence State-of-the-art algorithms in NMF/NTF using any beta-divergence in an easy to use class Author: Antoine Liutkus nmf, ntf, parafac, probabilistic models, nonnegative matrix fa... 20 3
Comments and Ratings by Antoine View all
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12 Apr 2013 Simple drums separation with NMF Illustrates the use of NMF for the separation of drums in polyphonic music Author: Antoine Liutkus

Hi, as mentioned in the description, this script makes use of the NMF and Signal classes that are available in Mathworks file exchange :
http://www.mathworks.com/matlabcentral/fileexchange/33451-stft-mdct-and-inverses-onset-and-pitch-detection
and
http://www.mathworks.com/matlabcentral/fileexchange/33452-practical-nmfntf-with-beta-divergence

cheers
01 Sep 2012 STFT, MDCT and inverses. Onset and pitch detection Short Time Fourier Transform, MDCT and their inverse. CQT. Onset and Pitch detection. Author: Antoine Liutkus

pitch detection function is back, along with MDCT and inverse
19 Jul 2012 STFT, MDCT and inverses. Onset and pitch detection Short Time Fourier Transform, MDCT and their inverse. CQT. Onset and Pitch detection. Author: Antoine Liutkus

The version currently uploaded does not have the pitch detection function due to a mistake I made. I'll update it shortly
08 Mar 2012 STFT, MDCT and inverses. Onset and pitch detection Short Time Fourier Transform, MDCT and their inverse. CQT. Onset and Pitch detection. Author: Antoine Liutkus

Hi, thanks for the comment/rating.

There are several possible reasons for your problem:
* the pitch detection system tries to find the most predominant and stable pitch within a background. It is mostly targeted for voice or harmonic signals. I have not really tested it for fundamental frequencies higher than 500-600Hz.
* If you have a knowledge that your fundamental frequency is likely to lie in some given bound, specify it the most tightly as you can. For example, looking for pitch from 100 to 500 may lead to catch the bass, whereas looking within [250-500] may catch the voice. This is due to the assumption that the pitch you are looking for has the higher energy.

If you provide me with your wavfile, I could give you some more hints

I hope this helps

cheers and good luck
21 Feb 2012 STFT, MDCT and inverses. Onset and pitch detection Short Time Fourier Transform, MDCT and their inverse. CQT. Onset and Pitch detection. Author: Antoine Liutkus

Hi, yes the onset detection algorithm is described in :
@INPROCEEDINGS{onsetdetection,
author = {C. Duxbury and J.P. Bello and M. Davies and M. Sandler},
title = {Complex Domain Onset Detection for Musical Signals},
booktitle = {In Proc. Digital Audio Effects Workshop (DAFx},
year = {2003},
address = {London, UK},
month = sep
}

Concerning the pitch detection, I developped it it, but unfortunately I still didn't took time to publish it somewhere..

cheers, thanks for your interest
Comments and Ratings on Antoine's Files View all
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12 Apr 2013 Simple drums separation with NMF Illustrates the use of NMF for the separation of drums in polyphonic music Author: Antoine Liutkus Liutkus, Antoine

Hi, as mentioned in the description, this script makes use of the NMF and Signal classes that are available in Mathworks file exchange :
http://www.mathworks.com/matlabcentral/fileexchange/33451-stft-mdct-and-inverses-onset-and-pitch-detection
and
http://www.mathworks.com/matlabcentral/fileexchange/33452-practical-nmfntf-with-beta-divergence

cheers
12 Apr 2013 Simple drums separation with NMF Illustrates the use of NMF for the separation of drums in polyphonic music Author: Antoine Liutkus ahmet

You put only main part, where are the functions in drums_seperation.m
22 Nov 2012 STFT, MDCT and inverses. Onset and pitch detection Short Time Fourier Transform, MDCT and their inverse. CQT. Onset and Pitch detection. Author: Antoine Liutkus alexis benichoux

01 Sep 2012 STFT, MDCT and inverses. Onset and pitch detection Short Time Fourier Transform, MDCT and their inverse. CQT. Onset and Pitch detection. Author: Antoine Liutkus Liutkus, Antoine

pitch detection function is back, along with MDCT and inverse
19 Jul 2012 STFT, MDCT and inverses. Onset and pitch detection Short Time Fourier Transform, MDCT and their inverse. CQT. Onset and Pitch detection. Author: Antoine Liutkus Liutkus, Antoine

The version currently uploaded does not have the pitch detection function due to a mistake I made. I'll update it shortly
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audio, matrix, nmf, ntf, signal processing
Files Tagged by Antoine View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
21 Feb 2013 Screenshot Easily store and retrieve subsets on big matrices on disk Stores columns of a matrix one at a time in hard disk and permits to easily recover subsets of it. Author: Antoine Liutkus matrix, storage, hard drive 3 0
12 Nov 2012 Screenshot Nonnegative Matrix and Tensor Factorization (NMF, NTF) with any beta-divergence very simple to use implementation of the NMF/NTF model Author: Antoine Liutkus nmf, ntf, nonnegative, matrix, tensor, audio 22 0
27 Aug 2012 Screenshot STFT, MDCT and inverses. Onset and pitch detection Short Time Fourier Transform, MDCT and their inverse. CQT. Onset and Pitch detection. Author: Antoine Liutkus fourier transform, audio, signal processing, overlap add, short term fourier tr..., stft 91 10
  • 5.0
5.0 | 2 ratings
27 Oct 2011 Screenshot Simple drums separation with NMF Illustrates the use of NMF for the separation of drums in polyphonic music Author: Antoine Liutkus source separation, audio, drums, onset, filtering, wiener 7 2
26 Oct 2011 Screenshot Practical NMF/NTF with beta divergence State-of-the-art algorithms in NMF/NTF using any beta-divergence in an easy to use class Author: Antoine Liutkus nmf, ntf, parafac, probabilistic models, nonnegative matrix fa... 20 3

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