The direct response TV campaign, a first for the charity, will go live at the end of August, with testing on satellite and terrestrial channels.
Martin Nieri, managing director at Clark McKay & Walpole, said: "It's time for the charity to talk to a broader audience about the important role it plays in our society and we're proud to be playing a part in making this happen."
The agency says the creative reflects the isolation and frustration suffered by deaf children and their families.
One key insight the campaign considers is that four out of five parents are unable to communicate effectively with their deaf child. The agency's campaign invites viewers to imagine life as a deaf child.
Allan Thompson, the charity's head of individual giving, said: "Clark McKay & Walpole impressed us with a highly relevant response to our fund raising requirements.
"It has superb DRTV credentials and was able to demonstrate that it possesses the type of insight needed to generate the kind of response we require to with this, our first TV campaign."
Last month, deaf and blind charity Sense unveiled its first DRTV campaign, created by Watson Phillips Norman.
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