Auditory blobs

Auditory scene analysis (ASA) tries to segment an auditory signal (scene) into objects. Most of the intermediate representations currently proposed based on ASA are difficult to compute. We propose auditory strands and blobs as intermediate representations. Auditory blobs are parts of an audio signal which have the same onset. By the principles of computational auditory scene analysis, they belong to the same object. We show how auditory blobs can be extracted and define harmonicity, dynamics, and onset features for auditory blobs. We also demonstrate their application to audio separation.