A beat-pattern based error concealment scheme for music delivery with burst packet loss

Error concealment is an important method to mitigate the degradation of the audio quality when compressed audio packets are lost in error prone channels, such as mobile Internet and digital audio broadcasting. This paper presents a novel error concealment scheme, which exploits the beat and rhythmic pattern of music signals. Preliminary simulations show significantly improved subjective sound quality in comparison with conventional methods in the case of burst packet losses. The new scheme is proposed as a complement to prior arts. It can be adopted to essentially all existing perceptual audio decoders such as an MP3 decoder for streaming music.