Crowd-sourced technique for pitch track generation

A computer program product encoded in one or more non-transitory machine-readable media, the computer program product including instructions executable on a processor of a service platform to cause the service platform to:

• receive a plurality of audio signal encodings for respective vocal performances captured in correspondence with a backing track;
• process the audio signal encodings to computationally estimate, for each of the vocal performances, a time-varying sequence of vocal pitches;
• aggregate the time-varying sequences of vocal pitches computationally estimated from the vocal performances based at least in part on confidence ratings determined as part of the computational estimation of vocal pitch;
• and
• based at least in part on the aggregation, supply a computer-readable encoding of a resultant pitch track for use as either or both of (i) vocal pitch cues and (ii) pitch correction note targets in connection with karaoke-style vocal captures in correspondence with the backing track.

A pitch track generation system comprising:

• a content server configured to:
• receive from a first set of geographically distributed set of network-connected devices a plurality of audio signal encodings for respective vocal performances captured in correspondence with a backing track;
• process the audio signal encodings to computationally estimate, for each of the vocal performances, a time-varying sequence of vocal pitches;
• aggregate the time-varying sequences of vocal pitches computationally estimated from the vocal performances based at least in part on confidence ratings determined as part of the computational estimation of vocal pitch;
• and
• based at least in part on the aggregation, supply to a second geographically distributed set of network-connected devices a computer-readable encoding of a resultant pitch track for use as either or both of (i) vocal pitch cues and (ii) pitch correction note targets in connection with karaoke-style vocal captures in correspondence with the backing track.