Answers to Frequently Asked Questions

How do I get SRAVI? Do I need my doctor to prescribe it?

All you need to do to start using SRAVI is fill in our form, and request to be on the trial. You do not need to ask your doctor.

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How do I get started?

Fill in our simple form (approx. 1 minute) to tell us more about how SRAVI can help you, and we will get back to you.

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Why would I need SRAVI?

If you can move your lips, but cannot make vocal sounds, as in the case of someone with a tracheostomy or who has suffered a stroke, SRAVI may be able to help you speak to those around you.

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What does SRAVI mean?

SRAVI is an acronym for 'Speech Recognition App for the Voice Impaired' - it's hard to say, but it describes the app exactly!

What equipment is needed?

Just a phone or tablet and our app!

How does it work?

Video capture of your lip movements will be analysed by our AI engine. The three most likely phrases that has been mouthed, are returned as a result. You can then select the correct phase. The phrase can then be shown on the mobile screen to those around you to communicate - be that with your doctor, nurses, family or friends.

What phrases does SRAVI recognise?

SRAVI initially can recognise 20 phrases that are useful for communicating with healthcare professionals. With the latest version of the app you can define your own phrases for SRAVI to recognise. To see some instructions and the phrases look at our phrase sheet

Do you collect data?

Yes; as this is a working trial, we will be analyzing usage data to find out which parts of our app are most useful. The trial is intended to help us perfect SRAVI. Our goal is for SRAVI to help as many people as possible.

Who made SRAVI?

SRAVI was developed by the team at Liopa - one of the world's only startups focused on automated lip reading. It was designed in partnership with the Lancashire Teaching Hospital Trust who are experts in dealing with tracheostomy patients. Liopa is located in Belfast, Northern Ireland and is associated with Queen's University Belfast. See more at

How much does it cost?

We are currently offering SRAVI for free, while we are trialing it. In the future, there may be a low monthly fee to use SRAVI.

Thank you. Your willingness to participate in our trial is greatly appreciated.