In this paper, we introduce SoloAudio, a novel diffusion-based generative model for target sound extraction (TSE). Our approach trains latent diffusion models on audio, replacing the previous U-Net backbone with a skip-connected Transformer that operates on latent features. SoloAudio supports both audio-oriented and language-oriented TSE by utilizing a CLAP model as the feature extractor for target sounds. Furthermore, SoloAudio leverages synthetic audio generated by state-of-the-art text-to-audio models for training, demonstrating strong generalization to out-of-domain data and unseen sound events. We evaluate this approach on the FSD Kaggle 2018 mixture dataset and real data from AudioSet, where SoloAudio achieves the state-of-the-art results on both in-domain and out-of-domain data, and exhibits impressive zero-shot and few-shot capabilities. Source code and demos are released.
@article{arxiv.2409.08425,
title = {SoloAudio: Target Sound Extraction with Language-oriented Audio Diffusion Transformer},
author = {Helin Wang and Jiarui Hai and Yen-Ju Lu and Karan Thakkar and Mounya Elhilali and Najim Dehak},
journal= {arXiv preprint arXiv:2409.08425},
year = {2025}
}