When you have your voice played back with a delay, your brain confuses what you're actually saying and what is being played back so that it 'corrects' itself based off the delayed sound which then causes the strange sounding speech. This is why deaf people have difficulty speaking clearly.
Your mind is constantly analyzing your balance and correcting itself. You don't have a memorized sequence of movements needed to cross. Your brain is constantly monitoring the sound of your voice in real time to keep it sounding like you want it to. You don't just think of a sentence and your mouth automatically says it from vocal memory. Through the Delayed Auditory Feedback effect, the speaker will have trouble articulating while speaking, effectively inhibiting his or her speech! What's more, speech jammer master utilizes a feedback loop. Speech jammer Ultimate App inhibits a user from speaking in coherent sentences due to the brain being confused by the slight delay in auditory feedback of the users own voice and by SpeechJammer, you can literally 'jam' someone's voice.