Duolingo TTS controls allow users to customize the TTS (Text to Speech) function on Duolingo.

Duolingo uses the built-in speakers or the built-in microphone to record speech that is then translated to a form that can be heard by the users. This function is useful for those who do not have access to the Internet, or for those who want to hear the information more precisely.

Duolingo TTS control panel allows users to select which challenge they want to use, the option to customize the volume of the TTS function, and to decide on the type of the voice: female, male, or mixed. This function is also customizable by selecting either the built-in voice or the user's own voice, or by selecting any other voice.