History: Asynchronous recordings of speech mixtures

!! Introduction
In recent years, many recording devices such as voice recorders, smart phones, tablet-type mobile devices, laptop PCs, etc, can be available in our surrounding environment easily, and exploiting them for array signal processing is one of the attractive scenarios. However, in most cases, recorded signals with different devices are not synchronous, which include unknown time offsets of recording start or sampling frequency mismatch. The aim of this task to evaluate source separation on such asynchronous channles.

!! Description of the datasets