Periodic ambient waveform analysis for enhanced social functions

A system comprising:

• one or more processors;
• and a memory coupled to the processors comprising instructions executable by the processors, the processors being operable when executing the instructions to:
• access a social graph comprising a plurality of nodes and a plurality of edges connecting the nodes, each of the edges between two of the nodes representing a single degree of separation between them;
• receive an audio waveform fingerprint from a first client device associated with a first user of a social-networking system, wherein a first node corresponding to the first user is connected to a second node corresponding to a second user by a first edge in the social graph;
• compare the received audio waveform fingerprint to a database of stored audio waveform fingerprints, each stored audio waveform fingerprint associated with a media object in an object database;
• identify one or more media objects in the object database, wherein each identified media object is associated with a stored audio waveform fingerprint matching the received audio waveform fingerprint;
• and
• send, to a second client device associated with the second user, content associated with the one of the identified media objects, wherein the sending is based at least in part on:
• that the first node corresponding to the first user is connected to the second node corresponding to the second user, and
• that the stored audio waveform fingerprint associated with the identified media object matches the audio waveform fingerprint received from the first client device associated with the first user.

A method, by one or more computing systems, comprising:

• accessing a social graph comprising a plurality of nodes and a plurality of edges connecting the nodes, each of the edges between two of the nodes representing a single degree of separation between them;
• receiving an audio waveform fingerprint from a first client device associated with a first user of a social-networking system, wherein a first node corresponding to the first user is connected to a second node corresponding to a second user by a first edge in the social graph;
• comparing the received audio waveform fingerprint to a database of stored audio waveform fingerprints, each stored audio waveform fingerprint associated with a media object in an object database;
• identifying one or more media objects in the object database, wherein each identified media object is associated with a stored audio waveform fingerprint matching the received audio waveform fingerprint;
• and
• sending, to a second client device associated with the second user, content associated with the one of the identified media objects, wherein the sending is based at least in part on:
• that the first node corresponding to the first user is connected to the second node corresponding to the second user, and
• that the stored audio waveform fingerprint associated with the identified media object matches the audio waveform fingerprint received from the first client device associated with the first user.