To dream that you are speaking in public indicates that you need to vocalize your feelings and thoughts. You need to communicate something important and/or urgent. Alternatively, the dream may highlight your fear and nervousness of speaking in public, especially if you have an upcoming speech to give. Consider the demeanor and behavior of the audience. Perhaps you are afraid of being scrutinized for your actions or being judged by others. It is also a form of an anxiety dream where you are feeling exposed or put on the spot.
To dream that there is no one listening to your speech suggests that you are not being acknowledged for your work or achievement. Perhaps you are feeling ignored or neglected.
To hear someone speaking in public in your dream suggests that your inner feelings are being made known to those around you. Consider what is said in the speech. If you hear a politician give a speech, then it represents egotism or deceit.