On the Information Geometry of Audio Streams With Applications to Similarity Computing

Abstract—This paper proposes methods for information processing of audio streams using methods of information geometry. We lay the theoretical groundwork for a framework allowing the treatment of signal information as information entities, suitable for similarity and symbolic computing on audio signals. The theoretical basis of this paper is based on the information geometry of statistical structures representing audio spectrum features, and specifically through the bijection between the generic families of Bregman divergences and that of exponential distributions. The proposed framework, called Music Information Geometry allows online segmentation of audio streams to metric balls where each ball represents a quasi-stationary continuous chunk of audio, and discusses methods to qualify and quantify information between entities for similarity computing. We define an information geometry that approximates a similarity metric space, redefine general notions in music information retrie...

• Type: Journal
• Year: 2011
• Where: TASLP
• Authors: Arshia Cont, Shlomo Dubnov, Gérard Assayag
• Keywords: Audio Streams, Information, Information Geometry, Software Engineering, TASLP 2011