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David Robert Stevens, Baron Stevens of Ludgate (born 26 May 1936) is a British peer who was formerly one of two UKIP members in the House of Lords. He was educated at Stowe School and Sidney Sussex College, Cambridge (MA, Economics). He is the son of Arthur Edwin Stevens who was the creator of the first body- worn electronic hearing aid. He was the chairman of United Newspapers, 1981 - 1999.
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Every electronic hearing aid has at minimum a microphone, a loudspeaker (commonly called a receiver), a battery, and electronic circuitry. The electronic circuitry varies among devices, even if they are the same style. The circuitry falls into three categories based on the type of audio processing (analog or digital) and the type of control circuitry (adjustable or programmable). Hearing aid devices generally do not contain processors strong enough to process complex signal algorithms for sound source localization.
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He designed the world's first wearable electronic hearing aid: the microphone went on the lapel, the amplifier went in the jacket pocket and the earphone was small enough not to need a headband. Eventually, as technology improved, Stevens created a hearing aid that was small enough to fit completely in the outer ear. His hearing aids were used by Winston Churchill (who was Stevens's personal client), amongst others. He also designed audiometers and acoustic equipment such as protective communication headsets and helmets.
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Photograph of Hughes conversing with John Curtin in 1945, wearing his hearing aid and with the apparatus bulging under his jacket Hughes had a severe hearing loss that began when he was relatively young and worsened with age. He relied on a primitive electronic hearing aid, which was so bulky that it could only be worn for short periods and had to be carried around in a box. However, his deafness could sometimes be to his advantage, as he could feign misapprehension or simply turn off his device when he no longer wished to listen to someone. Physically, Hughes was short in stature and slightly built, standing and weighing around at most.
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