Augmentative Communication (AC) refers to methods (other than speech or handwriting) that are used to send a message from one person to another.

Face to Face Communication 

We all use techniques in addition to speech to help our message be understood:

• facial expressions
• gestures
• body language

When it is hard for others to hear us (for example, in noisy rooms), we tend to augment (add to) our words with exaggerated gestures and facial expressions.

People with severe speech and language problems must rely quite heavily on these standard techniques as well as on specific augmentative techniques that have been developed for them. These techniques are used when speech is not possible or is very difficult to understand. Some of these special face to face communication techniques include:

• sign language
• picture/word communication boards
• speech generating devices.

Written Communication 

Sometimes, people may experience problems with their writing ability.  Their handwriting might be too slow or difficult to read.  They may also experience pain and/or fatigue when writing.  Some people may be unable to hold a pen or type on a computer keyboard due to a physical disability. 

In everyday life, many people use devices such as computers to enhance the legibility and speed of their writing.  Special computer adaptations are useful for people with significant writing difficulties, such as:

• alternative or modified keyboard
• alternative or modified mouse controllers
• keyguards
• on-screen keyboards
• word prediction software
• voice recognition software
• switch access to computer functions