AN END-TO-END DEEP LEARNING FRAMEWORK FOR MULTIPLE AUDIO SOURCE SEPARATION AND LOCALIZATION

Sound source separation and localization for situational awareness enables a wide range of applications such as hearing enhancement and audio beam-forming. We present an end-to-end deep learning framework to separate and localize multiple audio sources from the mixture of multi-channels. The proposed framework jointly estimates the separated sources and their time difference of arrival (TDOA) at different microphones, then it obtains the direction-of-arrival (DOA) for each source. A new structure to reconstruct the mixed signal is introduced for joint optimization of source separation and TDOA estimation. In addition, a discriminator network is added during the training phase to further improve the separation quality. Experiment results demonstrate that the proposed method achieves state-of-the-art accuracy on source separation as well as DOA estimation.