How can i save the response of the GET Request which contains special characters like "áÔ7ØÈˇ" since they are replaced with "����" when doing with Gatling

Currently I am hitting a service with a GET request that returns a binary content like “áÔ7ØÈˇ” (which is nothing but contents of an Audio file [.pcm file]). When I am saving the output with Gatling the file contains ���� instead of the binary content.
Even with Curl its the same, the console contains all “???”, unless I write it to a file like "curl -X GET http://:/s?q=hello >> temp.pcm

Can anyone help on how to achieve the same with Gatling?
Let me know in case you need any more info on this.