Technologies that help people with PTSD adjust to work surrounding

People with PTSD are highly sensitive to loud noises, crouded places and a simulation of that particular surrounding could help them adjust, be more productive and train before they start a new job. 

More ideas:

People who suffer from PTSD tend having difficulties recognizing that they are raising their voice and talking loudly. Create technological tools to help them be aware of their volume and feel more comfortable with their colleagues.