MacOS Build Fail: Microphone Usage Description is empty

Hi, I am a bit new to Photon have built a simple FPS with voice chat, which works great every time for Windows, but when I try to build a version for mac I get the two errors:

Microphone class is used but Microphone Usage Description is empty. App will not work on macOS 10.14+.
UnityEditor.OSXStandalone.OSXDesktopStandalonePostProcessor:RenameFilesInStagingArea(BuildPostProcessArgs)
DesktopStandalonePostProcessor:SetupStagingArea(BuildPostProcessArgs, HashSet`1)
DesktopStandalonePostProcessor:PostProcess(BuildPostProcessArgs)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&)

and

Exception: A required capability description is not set.
UnityEditor.OSXStandalone.OSXDesktopStandalonePostProcessor.UpdateInfoPlist (UnityEditor.Modules.BuildPostProcessArgs args, System.String path, System.String executableName) (at /Users/bokken/buildslave/unity/build/PlatformDependent/OSXPlayer/Extensions/Managed/OSXDesktopStandalonePostProcessor.cs:236