A system for harmonic analysis of polyphonic musical signals is presented. The system uses a transform with a non-uniform frequency resolution for the extraction of prominent tonal components and determines the key and the contained chords of a musical input signal with high accuracy. A statistical approach based on the frequency of occurrence of musical notes for determining the key is described. An algorithmic solution for chord determination is presented with a concise explanation which endorses a pattern matching method. Finally, a qualitative evaluation of the system’s performance is conducted to demonstrate the applicability to real world audio signals.
Author:
Cremer, Markus
Affiliation:
Fraunhofer Institute for Digital Media Technology IDMT
AES Conference:
25th International Conference: Metadata for Audio (June 2004)
Paper Number:
4-1
Publication Date:
June 1, 2004
Subject:
Metadata for Audio
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.