Microphone for chatbot not working

1. The Microphone for chatbots is not working. Try the chatbot at the link below: https://gigalearner.com/language/french-ai-tutor-french-amelie-renaud-professional/ 2. Please also let me know how much you charge to create an audio animation (eg sound waves) that starts when the chatbot starts talking and stops when it the chatbot stops talking.