# Copyright* localized_sources/beeps.wav is in public domain (https://freesound.org/people/kwahmah_02/sounds/316855/, CC0 1.0 Universal (CC0 1.0) Public Domain Dedication ).* localized_sources/clicks.wav is in public domain (https://freesound.org/people/Agaxly/sounds/217482/, CC0 1.0 Universal (CC0 1.0) Public Domain Dedication ).* localized_sources/finger_snaps.wav is by erikschenkel, under creative commons license Attribution 3.0 Unported (CC BY 3.0) (https://freesound.org/people/erikschenkel/sounds/257915/).* wide_band_sources/plane.wav is by NOISE.INC, under creative commons license Sampling Plus 1.0 (https://freesound.org/people/NOISE.INC/sounds/45389/).* wide_band_sources/train.wav is in public domain (https://freesound.org/people/Wakerone/sounds/417553/, CC0 1.0 Universal (CC0 1.0) Public Domain Dedication ).* localized_sources/bird.wav and wide_band_sources/car.wav are kindly provided by S. Molla and H. Lachambre from ANSYS (https://www.ansys.com/, all rights reserved)* localized_sources/chirps.wav and localized_sources/modulation.wav have been generated by the authors of this repository (A. M. Kreme, V. Emiya, C. Chaux, B. Torrésani) and are in public domain.