Pierre Hanna

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Music retrieval systems for Western tonal music digital ibraries have to consider rhythmic, timbral, melodic and harmonic information. Most existing retrieval systems only take into account melodies. Melody comparison may induce errors since two musical pieces can be very similar whereas their melodies may differ in a significant way. In this paper, we(More)
This paper proposes a new method for local key and chord estimation from audio signals. A harmonic content of the musical piece is first extracted by computing a set of chroma vectors. Correlation with fixed chord and key templates then selects a set of key/chord pairs for every frame. A weighted acyclic harmonic graph is then built with these pairs as(More)
Query-by-tapping systems are content-based music retrieval systems that allow users to tap or clap in a microphone the rhythmic pattern of the melody requested. In this paper, a new query-by-tapping system is described. This system is based on adaptations of alignment algorithms successfully applied for melodic similarity estimation. A similarity score is(More)
We propose a new retrieval system based on musical structure using symbolic structural queries. The aim is to compare musical form in audio files without extracting explicitly the underlying audio structure. From a given or arbitrary segmentation, an audio file is segmented. Irrespective of the audio feature choice, we then compute a selfsimilarity matrix(More)
Searching for similarities in largemusical databases is common for applications such as cover song identification. These methods typically use dynamic programming to align the shared musical motifs between subparts of two recordings. Such music local alignment methods are slow, as are the bioinformatics algorithms they are closely related to. We have(More)
Searching for similarities in large musical databases has become a common procedure. Local alignment methods, based on dynamic programming, explore all the possible matchings between two musical pieces; and as a result return the optimal local alignment. Unfortunately these very powerful methods have a very high computational cost. The exponential growth of(More)
Melody is an important property for the perceptual description of Western musical pieces. In the monophonic context, retrieval systems based on melodic similarity generally consider sequences of pitches and durations. Algorithms that have been proposed for measuring melodic similarity rely on geometric representations, string matching techniques, etc.(More)
We focus on the harmonic content of music pieces, considering Harmonic Pitch Class Profiles as audio features to segment audio pieces. The features are compared using Optimal Transposition Index and correlation adapted measures, ensuring robustness to timbre variations or detuning issues. No other audio feature is used for describing audio pieces. The(More)