Vibrotactile feedback is closely related to sound. When speaking, the body vibrates, and vibrations from external sound sources, such as loudspeakers, can be physically perceived when in close proximity. A preliminary study explored augmenting speech with synchronized vibrations, yielding promising results during speech-based interactions in virtual reality (VR). This concept has been named “Persuasive Vibrations,” as evidence shows positive effects on the speaker’s perceived persuasiveness when exposed to haptic feedback synchronized with their voice. This thesis work primarily focuses on the design and development of HapticMic: a haptic-enabled device that reinforces speech with real-time vibrotactile feedback synchronized with the speaker’s voice.