Patent ID: 8595009
Filing Date: 2013-11-26
Classification: G10H,G10L

Abstract:
1. A method of performing song detection on an audio signal, comprising: classifying clips of the audio signal into classes comprising music and non-music; detecting class boundaries of the music clips as candidate boundaries; and deriving at least one combination including one or more non-overlapped sections bounded by the candidate boundaries, each of the at least one combination is derived by: detecting each music segment bounded by two subsequent candidate boundaries t forming the combination by including the candidate song [t extending the boundary t extending the boundary t wherein the candidate boundary is based upon a content coherence distance which indicates that a candidate boundary is true, and wherein each of the sections meets the following conditions: 1) including at least one music segment longer than a predetermined minimum song duration as a candidate song, 2) shorter than a predetermined maximum song duration, 3) both starting and ending with a music clip, and 4) a proportion of the music clips in each of the sections is greater than a predetermined minimum proportion.