Cabañas-Molero, Pablo AntonioMuñoz-Montoro, Antonio JesúsVera-Candeas, PedroRanilla, José2024-02-072024-02-072023-04-06Cabañas-Molero, P., Muñoz-Montoro, A.J., Vera-Candeas, P. et al. The music demixing machine: toward real-time remixing of classical music. J Supercomput 79, 14342–14357 (2023). https://doi.org/10.1007/s11227-023-05192-50920-854210.1007/s11227-023-05192-5-https://hdl.handle.net/10953/2194Classical music, unlike popular music, is usually recorded live with close microphone techniques. For this reason, isolated tracks are not available to create the final mixture/stream, and so the mixing process requires greater effort. Source separation methods are a potential solution to this problem. However, current algorithms are not fast enough to yield real-time separation in professional setups with dozens of microphones and sources. In this paper, we propose a fast approach consisting of a panning-based multichannel non-negative matrix factorization model to separate classical music. We tested the system on real professional recordings, where we were able to reach real-time with very low latency and promising quality.engCC0 1.0 Universalhttp://creativecommons.org/publicdomain/zero/1.0/Classical musicHigh performance computingMultichannel NMFMusic source separationReal timeinfo:eu-repo/semantics/article621.39info:eu-repo/semantics/openAccess