Twenty-five years later, a family VHS tape filmed in the 1990s, resurfaced. Amongst the blaring TV and people talking in the background was eight seconds of Sarah chatting - barely audible at best.

Despite the unlikelihood of rescuing anything from it, assistive tech company Smartbox set to work. Simon Poole looped and cleaned the scratchy audio with a variety of tools until the cockney accent and lisp , Sarah used to hate, returned in all their glory. Sarah can now use her own voice with her eye gaze technology.

For her now grown-up children, Aviva and Eric, it was the first time they had ever heard their mother’s voice.

Presenter: Emma Tracey

Sound design: Dave O’Neill

Producers: Emily Selvadurai and Beth Rose

Editor: Damon Rose