US Patent 9301070 Signature matching of corrupted audio signal

Devices and methods that match audio signatures to programming content stored in a remote database are disclosed. In one aspect of an embodiment, audio that includes primary audio from a device that outputs media content to one or more users is analyzed, in order to identify a presence or absence of corruption, and an audio signature is generated for an interval of time. In an aspect of a further embodiment, content being watched by a user is identified using a query audio signature and a message indicating the presence or absence of corruption.