Musical Source Separation of Brazilian Percussion

Musical Source Separation of Brazilian Percussion

Richa Namballa

rn2214@nyu.edu

Music Technology
New York University
New York City, USA

Giovana Morais

gv2167@nyu.edu

Computer Science
New York University
New York City, USA

Magdalena Fuentes

mf3734@nyu.edu

Music Technology / IDM
New York University,
New York City, USA


Submitted to ISMIR 2024 as a Late-Breaking Demo

Abstract

Musical source separation (MSS) has recently seen a big breakthrough in separating instruments from a mixture in the context of Western music, but research on non-Western instruments is still limited due to a lack of data. In this demo, we use an existing dataset of Brazilian samba percussion to create artificial mixtures for training a U-Net model to separate the surdo drum, a traditional instrument in samba. Despite limited training data, the model effectively isolates the surdo, given the drum’s repetitive patterns and its characteristic low-pitched timbre. These results suggest that MSS systems can be successfully harnessed to work in more culturally-inclusive scenarios without the need of collecting extensive amounts of data.



Audio Examples

Randomly Generated Mix from the Brazilian Rhythmic Instrument Dataset (BRID)
Surdo Stem Separated by the Model
Surdo Stem of a YouTube Video Excerpt Separated by the Model