Tomas Tengstrand

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OBJECTIVE To investigate speech recognition performance in noise with bilateral open-fit hearing aids and as reference also with closed earmolds, in omnidirectional mode, directional mode, and directional mode in conjunction with noise reduction. DESIGN A within-subject design with repeated measures across conditions was used. Speech recognition(More)
The vibration velocity of the lateral semicircular canal and the cochlear promontory was measured on 16 subjects with a unilateral middle ear common cavity, using a laser Doppler vibrometer, when the stimulation was by bone conduction (BC). Four stimulation positions were used: three ipsilateral positions and one contralateral position. Masked BC pure tone(More)
OBJECTIVE The objective is to evaluate the electro-acoustic performance of a new audiometric bone vibrator, the B81 from Radioear Corporation, USA. Comparison will be made with the widely used B71 which has well-known limitations at low frequencies. DESIGN The B81 is based on the balanced electromagnetic separation transducer (BEST) principle where static(More)
Patients operated on for chronic otitis media sometimes have problems with persistent discharge from the ear when using a conventional hearing aid with an ear mould located in the ear canal. A new technique where a hearing aid for bone-conducted sound is mounted on an osseointegrated titanium screw located in the mastoid area is available. The method was(More)
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