Past Meetup

Steve Tjoa @ LiveNation/Ticketmaster

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Five Do-It-Yourself Projects in Music Information Retrieval


Steve Tjoa ( ( is a researcher and engineer in the areas of signal processing and machine learning for music information retrieval (MIR). He currently works on the MIR team at Humtap in San Francisco. Before that, he worked on content-based audio recognition and recommendation as an NSF-sponsored postdoctoral fellow at iZotope and Imagine Research (acquired by iZotope). He has also worked as a consultant in the areas of audio/image signal processing, machine learning, and information retrieval.

Since 2011, he has co-instructed the annual summer workshop on MIR at the Center for Computer Research in Music and Acoustics (CCRMA) at Stanford University. He has served on committees for conferences such as ACM Multimedia and IEEE ICME and co-authored articles for journals and conferences such as IEEE Trans. Information Forensics and Security, IEEE ICASSP, and ISMIR. He received a PhD in electrical engineering from the University of Maryland in 2011.


Music information retrieval (MIR) is an interdisciplinary field bridging the domains of statistics, signal processing, machine learning, musicology, biology, and more. MIR algorithms allow a computer to make sense of audio data in order to bridge the semantic gap between high-level musical information — e.g. tempo, key, pitch, instrumentation, chord progression, genre, song structure — and low-level audio data.

In this talk, we will provide live demos using Python and scikit-learn of actual MIR systems such as music fingerprinting, transcription, classification, and recommendation. We will present a high-level overview, survey open research problems in MIR, and discuss concrete elements of prototyping an MIR system including data visualization, open-source libraries, and evaluation. From this talk, the audience will become familiar with open-source tools and repositories for getting started with MIR.


7021 Hollywood Blvd, enter on Sycamore Ave. This is across the road underneath Fresh n' Easy. We will validate.


19:00 doors open and pizza served
19:30 talk starts