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Should we speak LOUDER!! to deaf people?Obviously, it is true that a sound does have to be loud enough for a deaf person to hear, but, all too often, that is only part of the problem. This is why there are pages on understanding needs and other issues in the 'Hearing Problems' menu. There are points worth making concerning the volume of sound, though. When a deaf person is asked if they 'can hear', they probably say that they can, because they are aware that speech or music is going on. However they often lose the thread of what is being said. The reasons can be that people tend not to speak consistently at the same volume. They may drop their voices at different parts of a sentence or for the operative words that give the meaning.
Deaf people often 'hear' the speech as a jumble of incoherent words, as if it were a foreign language. because speakers often 'swallow' the beginnings and ends of words (the consonants). Then all that is 'heard' are the middles of the words (the vowels) which are highly ambiguous, as so many different words have the same vowel sounds. Speakers do not only alter the volume of their speech for different parts of a sentence, they also alter the pitch which is considered separately on another page. So what may be loud enough for a deaf person at one pitch may not be at another pitch. If volume levels at various pitches are the only problems, digital hearing aids can work wonders. How to help
Technical noteThe level of a sound tends to be described in various ways by the general public: its loudness, its intensity or its volume. Technically these are not the same thing, although the differences are of no importance in developing coping strategies for the deaf. The 'loudness' of a sound can be recognised by the height of its sound wave (its amplitude) whereas intensity is measured numerically by the square of the amplitude. |
Disclaimer: The information on this site is for a lay audience and I cannot be responsible for errors or omissions. The views, strategies, advice and suggestions etc are based on my personal experience and are not necessarily appropriate for anyone else. They should, hopefully, stimulate individuals to develop their own strategies.