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Classificando sinais de áudio com PythonAlan Fachini
Bolero de Ravel
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Problema
Minor Threat – Minor Threat
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20 MFCC: Burro Morto – O céu sobre o porto (3:39)
Vamp Plugins
● Desenvolvido por Chris Cannam
● Mesmo autor do Rosegarden e Sonic Visualiser● Análise de sinal de áudio digital
● Baseado nos plugins VST
● Visualização com Sonic Visualiser e Audacity
● Batch processing com Sonic Annotator
● csv, RDF● Pode-se desenvolver em Python com o Vampy!
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TimeDomain
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FrequencyDomain
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Output
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Qual a cara de um plugin Vampy?
Kraftwerk – Computer World
vim MFCC.py
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Sonic AnnotatorThe Octopus Project - Truck
sonic-annotator -d vamp:qm-vamp-plugins:qm-mfcc:coefficients $file -w csv
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Sonic Visualizer
Gotan Project – Amor Porteno
open Sonic Visualiser
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20 MFCC Refused – Worms of the Sense (0:33)
@alfakini [email protected] www.musa.cc
http://www.omras2.org/SonicAnnotator http://www.sonicvisualiser.org/ http://vamp-plugins.org/ http://vamp-plugins.org/vampy.html