I've searched the web and looked through the available options, but I couldn't find anything related to the playback button. However, based on the available features you can export the files as ringtones and listen them using this method. It's specified in the the features list that the user can export the files and listen them as ringtones on his mobile device.
To make it easier, install Nox App Player and you can use a PC instead of a mobile phone.