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FREQUENCY THEORY HEARING [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-03-05

English

Subject field(s)
  • Hearing
OBS

The frequency theory of hearing presumes that the rate, or frequency, of nerve impulses in the auditory nerve matches the frequency of a tone, thus enabling us to sense its pitch.

Key term(s)
  • theory of central analysis

French

Domaine(s)
  • Ouïe
DEF

Théorie selon laquelle la cochlée transmet au cerveau les ondes qui parviennent à l'oreille, jouant ainsi un simple rôle de relais.

Spanish

Save record 1

Record 2 1997-10-16

English

Subject field(s)
  • Prostheses
  • Hearing
OBS

... on a hearing aid.

OBS

Horns were first applied to earmolds in the late 1950s in the "Acoustic Modifier"--a short-canal, wide-bore mold. Enlarging a sound bore will enhance high frequencies passing through it; reducing it will reduce the high frequency components. The key to horn theory involved the change in bore diameter, not its shape. With the extended high frequency range of many of today's hearing aids, a horn of some type should be employed to preserve the performance and achieve a successful fitting. Probably the most popular style is the Libby Horn--a tapered, one-piece sound tube which is replaceable in the dispenser's office.

French

Domaine(s)
  • Prothèses
  • Ouïe
OBS

Source : Ordre des audioprothésistes, Trois-Rivières, Québec.

Spanish

Save record 2

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