Papers › KUIELab-MDX-Net: A Two-Stream Neural Network for Music Demixing

KUIELab-MDX-Net: A Two-Stream Neural Network for Music Demixing

24 Nov 2021arXiv:2111.12203archive 2025-07-28

Minseok Kim, Woosung Choi, Jaehwa Chung, Daewon Lee, Soonyoung Jung

Recently, many methods based on deep learning have been proposed for music source separation. Some state-of-the-art methods have shown that stacking many layers with many skip connections improve the SDR performance. Although such a deep and complex architecture shows outstanding performance, it usually requires numerous computing resources and time for training and evaluation. This paper proposes a two-stream neural network for music demixing, called KUIELab-MDX-Net, which shows a good balance of performance and required resources. The proposed model has a time-frequency branch and a time-domain branch, where each branch separates stems, respectively. It blends results from two streams to generate the final estimation. KUIELab-MDX-Net took second place on leaderboard A and third place on leaderboard B in the Music Demixing Challenge at ISMIR 2021. This paper also summarizes experimental results on another benchmark, MUSDB18. Our source code is available online.

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kuielab/mdx-net officialmentioned in paperpytorch report

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Tasks

Music Source SeparationVocal Bursts Valence Prediction

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Music Source Separation MUSDB18 KUIELab-MDX-Net SDR (avg) 7.54 #7 of 27 Archive leaderboard report
Music Source Separation MUSDB18 KUIELab-MDX-Net SDR (bass) 7.86 #7 of 27 Archive leaderboard report
Music Source Separation MUSDB18 KUIELab-MDX-Net SDR (drums) 7.33 #7 of 27 Archive leaderboard report
Music Source Separation MUSDB18 KUIELab-MDX-Net SDR (other) 5.95 #7 of 27 Archive leaderboard report
Music Source Separation MUSDB18 KUIELab-MDX-Net SDR (vocals) 9.00 #7 of 27 Archive leaderboard report
Music Source Separation MUSDB18-HQ KUIELab-MDX-Net SDR (avg) 7.47 #12 of 14 Archive leaderboard report
Music Source Separation MUSDB18-HQ KUIELab-MDX-Net SDR (bass) 7.83 #12 of 14 Archive leaderboard report
Music Source Separation MUSDB18-HQ KUIELab-MDX-Net SDR (drums) 7.20 #12 of 14 Archive leaderboard report
Music Source Separation MUSDB18-HQ KUIELab-MDX-Net SDR (others) 5.90 #12 of 14 Archive leaderboard report
Music Source Separation MUSDB18-HQ KUIELab-MDX-Net SDR (vocals) 8.97 #12 of 14 Archive leaderboard report

Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.

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