Patent ID: 7991770

Claim:
A method executed by one or more computing devices, the method comprising: determining a current match between an audio descriptor and a first reference descriptor, the current match occurring at a current time step and being associated with a current confidence score, the current time step having a time step length; performing post-match processing, including: determining a previous match between the audio descriptor and a second reference descriptor, the previous match occurring at a previous time step and being associated with a previous confidence score, the previous time step having the time step length; and applying the following formula, upon condition that C h −1/L>C 0 , to the previous match and the previous confidence score: { M 0 ,C 0 }={M h ,C h −l/L} where: M 0 is a match for selecting content related to the audio descriptor; C 0 is the current confidence score; M h is the previous match occurring at the previous time step; C h is the previous confidence score associated with the previous match; l is a time step length; and L is an expected dwell time; selecting content related to the audio descriptor based on the match M 0 ; and removing the selected content from a presentation to a user.