AN OVERVIEW OF AUDIO CLASSIFIER METHODS AND TECHNIQUES

A brief overview of trends and developments in the area of Content-Based Audio Indexing and Retrieval (CBAIR), during the past few years. Here we explored some limitations and constrains of existing Query by Example (QBE) and Query by Humming (QBH) CBAIR systems. We talked about different methods to represent musical objects, like feature-based representation, musical parameter-based representation; similarly retrieval strategies, like feature based retrieval as well as melody or theme based retrieval of musical objects, in this paper. Moreover, some important issues regarding to indexing and retrieval performance i.e. efficient indexing and retrieval complexity, in this area are discussed thoroughly. Finally, hypothetical solutions for the existing problems in this area are proposed to improve the performance.