A loudspeaker amplifies a voice for everyone to hear. Tradition reads it as the need to be heard, or as announcements from authority that drown out your own thoughts.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.