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Conference Paper

Tonic-Independent Stroke Transcription of the Mridangam

Authors: Anantapadmanabhan, Akshay; Bello, Juan; Krishnan, Raghav; Murthy, Hema

AES Conference: 53rd International Conference: Semantic Audio · Paper P2-2 · January 2014

Abstract

In this paper, we use a data-driven approach for the tonic-independent transcription of strokes of the mridangam, a South Indian hand drum. We obtain feature vectors that encode tonic-invariance by computing the magnitude spectrum of the constant-Q transform of the audio signal. Then we use Non-negative Matrix Factorization (NMF) to obtain a low-dimensional feature space where mridangam strokes are separable. We make the resulting feature sequence event-synchronous using short-term statistics of feature vectors between onsets, before classifying into a predefined set of stroke labels using Support Vector Machines (SVM). The proposed approach is both more accurate and flexible compared to that of tonic-specific approaches.

Details

Published in
AES Conference: 53rd International Conference: Semantic Audio
Paper number
P2-2
Publication date
January 6, 2014
Session subject
Automatic Music Transcription
Affiliation
Indian Institute of Technology Madras, Chennai Tamil Madu, India; New York University, New York, NY, USA (See document for exact affiliation information.)
Type
Conference Paper