Detecção automática de música

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Date
2011Version
Acceso abierto / Sarbide irekia
Type
Proyecto Fin de Carrera / Ikasketen Amaierako Proiektua
Impact
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nodoi-noplumx
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Abstract
This document presents the work done in automatic detection of music events present in audio
signals. The signal corresponds to recordings of broadcast radio and TV programs. The aim of
this work is the development of algorithms to discriminate musical segments from other
sounds. The algorithms require the definition of models for audio classification, in our case
Gaussian models. Two models ...
[++]
This document presents the work done in automatic detection of music events present in audio
signals. The signal corresponds to recordings of broadcast radio and TV programs. The aim of
this work is the development of algorithms to discriminate musical segments from other
sounds. The algorithms require the definition of models for audio classification, in our case
Gaussian models. Two models were created, one for music and another for non-music (a
background model representing speech in most of the times) and the classification is based on
log likelihood ratios.
In the first part of this work several hours of audio recordings have been manually annotated
in order to define an audio database. The database includes two sets of audio files, one set for
model training and another to test the detection system. The proposed method, despite its
simplicity, has proven capable of achieving good results.
Ultimately the intent of this project is to construct a series of algorithms to differentiate, in the
best way possible, different audio events that are present in the files, including silence, music,
speech and other events. [--]
Subject
Detección automática de música,
Grabaciones de audio,
Automatic detection of music,
Audio recordings
Departament
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa eta Elektronikoa Saila
Degree
Ingeniería Técnica Industrial /
Industria Ingeniaritza Teknikoa