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Mathieu Lagrange

General Media

  • Estimation of the Instantaneous Frequency Using Phase-Based Methods

    The robust estimation of the frequency of some sinusoidal components is a major prerequisite for many applications, such as in sinusoidal sound modeling, where the estimation has to be done with a low complexity, on short-term spectra.
  • Long Interpolation of Audio Signals

    In this study, the autoregressive (AR) modeling of the amplitude and frequency parameters of sinusoidal components allows us to interpolate realistically missing audio data, especially in the case of musical modulations such as vibrato or tremolo.
  • Singing Voice Separation using the Normalized Cuts

    The proposed method is inspired by ideas from Computational Auditory Scene Analysis. We formulate singing voice tracking and formation as a graph partitioning problem and solve it using the normalized cut which is a global criterion for segmenting graphs that has been used in Computer Vision.
  • Evaluation of the Technical Level of Saxophone Performers

    We study a new method to evaluate the technical level of a musical performer, by considering only the evolutions of the spectral parameters during one tone.
  • Master and Phd Students

    Mathieu Lagrange's Master and Phd Students
  • One tree growing

    This video demonstrates the growth of one tree-like structure through an agglomeration of nutriments
  • ORCHIVE: Digitizing and Analyzing Orca Vocalization

    This work aim at creating a large digital archive of killer whale or orca vocalizations. The goal of the project is to digitize approximately 20000 hours of existing analog recordings of these vocalizations in order to facilitate access to researchers internationally. We are also developing tools to assist content-based access and retrieval over this large digital audio archive
  • Publications

    Mathieu Lagrange's Publications
  • Rolling Sound demonstration

    Analysis / Synthesis of Sounds Generated by Sustained Contact between Rigid Objects
  • Three trees growing

    This video demonstrates the growth of three tree-like structures through a comptetion for nutriments
  • Tracking Partials of Polyphonic Sounds

    This study addresses the problem of tracking partials, i.e. determining the evolution over time of the parameters of a given number of sinusoids with respect to the analyzed audio stream
  • Tridimensional Rendering of Tree-Like Vegetal Structures

    In this study, we propose an original method for building Tree-Like Vegetal Structures using a generalization of the acretion method used for building sponge-like structures.

Researcher Profile

  • François Rigaud

    Stage de fin d'étude Master 2 ATIAM : Séparation de la partie percussive d'un morceau de musique.
  • Mathieu Lagrange

    • Computational Auditory Scene Analysis (CASA),
    • Music Information Retrieval (MIR),
    • Sinusoidal Modeling

    CV