upload audio files enabled

I modified only the names in the archive feature and i added a corresponding step. 

Because of the title field required in the archive_media schema , all the media files that i upload ask for the title field. 
In the case of "upload" schema the title is not required and this way i had pb in the behave. So i thought the solution is to add a step for audio uploadingm image uploading and to keep the step related to binary files (used for uploading using the upload schema)...