The Disability Discrimination Act 1995
This act requires any person or business that provides services to ensure that all aspects of their business are accessible by everyone that the service may apply to.
The act states, "It is unlawful for a provider of services to discriminate against a disabled person"
to view the relevant section of the act.
By including audio descriptions, information and directions on your website, you can provide access to information for partially sighted and blind people and to those who have difficulty reading or understanding text including those who have dyslexia.
It’s also worth considering that without audio on your site you may be making your services inaccessible to a large proportion of your potential client base.