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Effects of Audio Compression on Chord Recognition

  • Aiko Uemura
  • Kazumasa Ishikura
  • Jiro Katto
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8326)

Abstract

Feature analysis of audio compression is necessary to achieve high accuracy in musical content recognition and content-based music information retrieval (MIR). Bit rate differences are expected to adversely affect musical content analysis and content-based MIR results because the frequency response might be changed by the encoding. In this paper, we specifically examine its effect on the chroma vector, which is a commonly used feature vector for music signal processing. We analyze sound qualities extracted from encoded music files with different bit rates and compare them with the chroma features of original songs obtained using datasets for chord recognition.

Keywords

chroma vector audio compression chord recognition 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Aiko Uemura
    • 1
  • Kazumasa Ishikura
    • 1
  • Jiro Katto
    • 1
  1. 1.Waseda UniversityShinjuku-kuJapan

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