Smule, Inc.

Dean Schaffer

Perry Raymond Cook

John Shimmin

Stefan Sullivan

Jeffrey Christopher Smith

Jeannie Yang

Ran Xie

Jonathan Moody

Oscar Corral

Charles Espeleta

Digital signal processing and machine learning techniques can be employed in a vocal capture and performance social network to computationally generate vocal pitch tracks from a collection of vocal performances captured against a common temporal baseline such as a backing track or an original performance by a popularizing artist. In this way, crowd-sourced pitch tracks may be generated and distributed for use in subsequent karaoke-style vocal audio captures or other applications. Large numbers of performances of a song can be used to generate a pitch track. Computationally determined pitch trackings from individual audio signal encodings of the crowd-sourced vocal performance set are aggregated and processed as an observation sequence of a trained Hidden Markov Model (HMM) or other statistical model to produce an output pitch track.

Crowd-sourced technique for pitch track generation

Crowd sourced technique for pitch track generation

Advanced, but user-friendly composition and editing environments for musical scores may be provided using the types, and in some cases the instances, of computing devices that will in turn consume musical score content so generated. Indeed, by integrating musical composition facilities within synthetic musical instruments that can be widely deployed on hand-held or portable computing devices, a social music network that includes such synthetic musical instruments gains access to a large, and potentially prolific, population of authors, editors and reviewers, as well as to the community-sourced musical scores that they can generate. By curating such content and/or by applying crowd-sourcing or other computational techniques to maintain quality, a social music network may rapidly deploy the new and ever evolving content that its user community desires.

Musical composition authoring environment integrated with synthetic musical instrument

Growing community of inventors

San Francisco, CA, United States of America

Dean Schaffer