Aac
What are speech-generating devices?
Speech-generating devices (SGDs) are electronic AAC tools — dedicated devices or tablet apps — that speak aloud the words, symbols or letters a child selects. They give a reliable voice to children who can't rely on natural speech, and evidence shows they support rather than hinder spoken language. The right device is chosen with a speech-language therapist.
When words don't come easily, a device can give a child a powerful, reliable voice.
In short
Speech-generating devices (SGDs) are electronic tools that produce spoken words for a child who cannot rely on natural speech to be understood. A child selects pictures, symbols, words or letters — by touch, by pointing, or even by eye gaze — and the device speaks the message aloud. They are one form of AAC (augmentative and alternative communication), and they support, rather than replace, a child's own developing speech. Far from holding speech back, evidence shows AAC tends to encourage it.What they look like and how they help
An SGD can be a dedicated communication device or an app running on a tablet. They range widely:- Simple, single-message buttons — press once to say one phrase ("I want more").
- Grid-based symbol systems — pages of pictures or symbols a child combines into sentences.
- Text-to-speech keyboards — for children who can spell, typing turns into speech.
- Eye-gaze or switch-access devices — for children with significant motor differences, so a look or a single switch press becomes a spoken word.
The right device depends entirely on your child's vision, motor skills, language level and interests — which is why an SGD is chosen with a speech-language therapist, never bought off a shelf and hoped for. A well-matched device reduces frustration, opens up choice-making, and gives a child a dependable way to be heard at home and at school.
The Pinnacle way
A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care — never from an app or an online form. Choosing the right communication path begins there: our speech therapy team explores AAC options alongside your child's natural communication, guided by a clear starting point you can understand. [Start here](/) to learn how we build a voice that fits your child.Trusted sources
American Speech-Language-Hearing Association (ASHA) guidance on augmentative and alternative communication; WHO framing of communication as a core area of child functioning.Next step — Wondering whether an SGD could help your child? Book an assessment with a Pinnacle clinician.
This is general information, not a diagnosis — a clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre under qualified clinician care.
What to watch
Notice how your child already communicates — pointing, leading you by the hand, sounds, gestures. These existing ways of reaching out are exactly what a therapist builds on when matching a speech-generating device.
Try this at home
You don't need to buy anything to begin. Try pairing a few favourite picture cards with the spoken word each time — it builds the link between symbol and meaning that any future device relies on.
Trusted sources
Developed by SETU Consortium · Pinnacle Blooms Network · Last reviewed 2026-06-11 · reviewed every 365 days
This is general information, not a diagnosis. A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care.
Frequently asked
Will a speech-generating device stop my child from learning to talk?
No. This is a common worry, but research consistently shows AAC, including speech-generating devices, tends to encourage natural speech rather than replace it. The device gives your child a reliable way to communicate while spoken language continues to develop.
Is a tablet app the same as a speech-generating device?
It can be. Many speech-generating devices today are apps running on a tablet, while others are dedicated, purpose-built devices. The best choice depends on your child's vision, motor skills and language level, which a speech-language therapist helps assess.
At what age can a child start using a speech-generating device?
There is no fixed minimum age. Even young children can begin with simple single-message buttons or picture-based systems. A therapist matches the device to your child's current abilities rather than to a number.