Abstract: A dynamic audio broadcasting method is to receive an audio signal and an ambient sound, compare the audio signal and the ambient sound to adjust an amplification volume of the audio signal, and play the audio signal at the amplification volume. An audio broadcasting apparatus includes an audio receiver, an ambient sound receiver, a speaker, and a processing module electrically connected to the above components. The processing module is configured to receive an audio signal and an ambient sound through the audio receiver and the ambient sound receiver respectively, compare the audio signal and the ambient sound to adjust an amplification volume of the audio signal, and play the audio signal at the amplification volume through the speaker.