Patent ID: 6748360
Filing Date: 2004-06-08
Classification: G06Q,G11B,H04H,H04N

Abstract:
A method for selling products containing or relating to audio content, said method comprising the steps of:receiving a recorded audio content image; generating audio identifying information for the audio content image based on detected events in the audio content image; determining whether the audio identifying information generated for the audio content image matches audio identifying information in an audio content database; and if the audio identifying information generated for the audio content image matches audio identifying information in the audio content database, charging a fee for at least one product containing or relating to audio content that corresponds to the matching audio identifying information, wherein the generating step includes the sub-step of: detecting a plurality of events in the audio content image, each of the events being a crossing of the value of a first running average and the value of a second running average, wherein the first running average is an average over a first averaging period of a plurality of time dependent frequency components of the audio content image, and the second running average is an average over a second averaging period, which is different than the first averaging period, of the time dependent frequency components of the audio content image.