It found its way to a ready group of listeners in the two Congos, who recognized the sounds as their own.

刚果的一群听众发现了这种声音，他们认出这个声音来自于本国。

A handful in the congo basin of africa, a few on the Andaman Islands in the Indian Ocean and several on the Pacific island of New Guinea.

少数在非洲的刚果盆地，一些在印度洋的安达曼群岛，还有一部分在太平洋的新几内亚岛。