Asteroid: The PyTorch-Based Audio Source Separation Toolkit for Researchers. - Manuel Pariente; Samuele Cornell; Joris Cosentino; Sunit Sivasankaran; Efthymios Tzinis; Jens Heitkaemper; Michel Olvera; Fabian-Robert Stöter; Mathieu Hu; Juan M. Martín-Doñas; David Ditter; Ariel Frank; et al. (INTERSPEECH, 2020)