Jordi Janer, from the MTG, gives a talk on "Methods for Music Signal Source Separation of Professionally Produced Recordings" on Thursday February 14th 2013 at 15:30h in room 52.321 of the Communication-Poblenou Campus of the UPF.

Abstract:
This presentation addresses the topic of Music Signal Source Separation. We show the outcome of an industrial joint-research project at the Music Technology Group of UPF. From an initial goal of removing the lead instrument from a professionally produced music recordings, we worked on a general framework for music signal modeling and separation. These methods introduce some novelties over the state-of-the-art, extending on approaches such as Non-negative Matrix Factoriztion (NMF). We present timbre classification for predominant pitch detection, vocal residual treatment, monophonic and polyphonic polytimbral source/filter models, harmonic/percussion separation. Our methods can be grouped in two different categories depending on the field of application: a) low-latency/low-computation and b) high-latency/high-computation. Several demos and potential uses of music source separation will be introduced in our talk.

Biography:
Jordi Janer is researcher at the Music Technology Group of the Universitat Pompeu Fabra in Barcelona. His research interests cover: audio signal processing with a focus on the human voice, source separation, applications for real-time music interaction and environmental sound analysis and soundscape modelling. Graduated in Electronic Engineering (2000), he started his career as DSP engineer at Creamware GmbH, (Germany, 2000-2003), designing and developing audio effects and virtual synthesizers. Joining later the UPF, he obtained the PhD degree in 2008. As a visiting researcher, he stayed at McGill University (Canada, 2005) and at Northwestern University (USA, 2009). His activity as a researcher and project manager in the past years involves various public-funded research projects (2004-2013), and joint-research collaborations with Yamaha Corp. (Japan). He is also cofounder in 2011 of Voctro Labs, a spin-off company specialized on voice processing solutions for the audiovisual media industry.

Jordi Janer's website