In 1878, Edison developed a device similar to the speaking trumpet in hopes of benefiting the deaf and hard of hearing.
From the en.wikipedia.org
The middle funnel was similar to Morland's speaking trumpet, but had a larger slot to insert a user's mouth.
From the en.wikipedia.org
The initial inventor of the speaking trumpet is a subject of historical controversy, as both Samuel Morland and Athanasius Kircher lay claim to the device.
From the en.wikipedia.org
Each of these persons holds to his mouth an instrument analogous to a speaking trumpet, in which the word may easily be pronounced, and the sound concentrated upon the wire.
From the en.wikipedia.org
For a guy who's earned a reputation for speaking his mind, Christian Scott's trumpet tone can seem a bit incongruous.
From the latimes.com
She has been making one or two speaking appearances a month to trumpet the message of the story, including a 2007 visit to Pittsburgh when it was being performed as a play.
From the post-gazette.com
Before that, I used to do public speaking at my high school and also played the trumpet in the school band, so I was used to a little bit of the limelight.
From the guardian.co.uk
In the book the conch is used as a trumpet to call everyone together and held by whoever is speaking at meetings, symbolically representing democracy and order.