Audibility/ˌɔːdəˈbɪləti/ Definition 1 of 2Pro Tip 1/3Volume Control Audibility often involves adjusting volume to ensure sounds can be heard. Adjusting the microphone increased the speaker's audibility. Pro Tip 2/3Environmental Factors Noise around you may affect audibility of certain sounds or speech. The audibility of the siren was low due to the storm. Pro Tip 3/3Speech Clarity Pronunciation and clear speaking can improve audibility, not just volume. Her clear enunciation enhanced the audibility of the announcement.