(SSR) Replace {} with ()
(SSR) Replace {} with ()

This is because g++ (Debian 4.9.1-14) produced an error:

    internal compiler error: in convert_move, at expr.c:331

See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=761529 and
https://github.com/SoundScapeRenderer/ssr/issues/22

AudioProcessingFramework/apf,AudioProcessingFramework/apf,AudioProcessingFramework/apf