If the source is claiming that it is from the Sriwijaya flight (you don't make that clear) then not only is it clearly a fake, but a sick one at that.
I have followed it up. It seems to be the alleged ATC communications recording of the Lion Air accident that was 'leaked' to the Indonesian media and widely circulated at the time - although Lion Air said it was not genuine. It is now being circulated in SE Asia media as a recording of the Sriwijaya accident. As you say, a very sick example of fake news.