# FDK-AAC is the only good AAC encoder. libvoaac is deprecated and aacplus is subpar. 
# The difference in compression quality is clearly audible. -- Albert
      %ifencoder %aac
       if type == "aac" then
         %include "aac.liq"
        end
       %endif

#      %ifencoder %aacplus
#       if type == "aacplus" then
#          %include "aacplus.liq"
#        end
#        %endif

#       %ifencoder %fdkaac
#        if type == "aac" then
#           %include "fdkaac.liq"
#       end
#        %endif
    else
        user_ref = ref user
        if user == "" then
            user_ref := "source"
        end`