# Towards Practical Real-Time Low-Latency Music Source Separation

arXiv: https://arxiv.org/abs/2511.13146 · HTML: https://mlsanity.com/paper/2511.13146/

## Key facts

- Cited by 1 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 17 Nov 2025.

## Built on by (most cited first, 1 of 1)

- [DTT-BSR+: A Generative-Regression Cascade for Music Source Restoration](https://mlsanity.com/paper/2606.24127/) (2026)

## Abstract (arXiv)

In recent years, significant progress has been made in the field of deep learning for music demixing. However, there has been limited attention on real-time, low-latency music demixing, which holds potential for various applications, such as hearing aids, audio stream remixing, and live performances. Additionally, a notable tendency has emerged towards the development of larger models, limiting their applicability in certain scenarios. In this paper, we introduce a lightweight real-time low-latency model called Real-Time Single-Path TFC-TDF UNET (RT-STT), which is based on the Dual-Path TFC-TDF UNET (DTTNet). In RT-STT, we propose a feature fusion technique based on channel expansion. We also demonstrate the superiority of single-path modeling over dual-path modeling in real-time models. Moreover, we investigate the method of quantization to further reduce inference time. RT-STT exhibits superior performance with significantly fewer parameters and shorter inference times compared to state-of-the-art models.