Authors: Blamey, Peter J.; Fiket, Hayley J.; Steele, Brenton R.

Source: Journal of the American Academy of Audiology, Volume 17, Number 7, July 2006 , pp. 519-530(12)

Publisher: American Academy of Audiology

Abstract:

Omnidirectional, supercardioid, and adaptive directional microphones (ADM) were evaluated in combination with the ADRO^® amplification scheme for eight participants with moderate sloping hearing losses. The ADM produced better speech perception scores than the other two microphones in all noise conditions. Participants performed the Hearing in Noise Test sentences at -4.5 dB SNR or better, which is similar to the level achievable with normal hearing. The Speech, Spatial and Qualities of Hearing Scale indicated no disadvantages of using the ADM relative to the omnidirectional microphone in real-life situations. The ADM was preferred over the omnidirectional microphone in 54% of situations, compared to 17% preferences for the omnidirectional microphone, and 29% no preference. The combination of the ADM to improve SNR, and ADRO^® to keep the signal output comfortable and audible provided near-normal hearing performance for people with moderate hearing loss. The ADM is the recommended microphone configuration for ADRO hearing aids.

Spanish
Se evaluaron micrófonos omnidireccionales, supercardioides y micrófonos direccionales adaptativos (ADM) en combinación con el esquema de amplificación ADRO^® en ocho participantes con hipoacusias de pendiente moderada. El ADM produjo mejores puntajes de percepción del lenguaje que los otros dos micrófonos en todas las condiciones ruidosas. Los participantes realizaron la Prueba de Audición en Ruido a - 4.5 dB SNR o mejor, que equivale al nivel alcanzable con audición normal. La escala de percepción del lenguaje, percepción espacial y de calidad de la audición (SSQ) no mostró desventajas del uso del ADM en relación con el micrófono omnidireccional en situaciones de la vida real. Se prefirió el ADM sobre el micrófono omnidireccional en 54% de las situaciones, comparado con un 17% de preferencia por el omnidireccional y un 29% sin preferencia. La combinación del ADM para mejorar la SNR, y el ADRO^® para mantener la salida de la señal confortable y audible aportó un desempeño auditivo cercano a la normalidad en las personas con una hipoacusia moderada. La configuración de micrófono ADM es la recomendada para auxiliares auditivos ADRO.

Keywords: DIRECTIONAL MICROPHONES; HEARING AIDS

Document Type: Research article

DOI: http://dx.doi.org/10.3766/jaaa.17.7.7

Publication date: 2006-07-01

More about this publication?

• The Journal of the American Academy of Audiology publishes articles and clinical reports in all areas of audiology, including audiological assessment, amplification, aural habilitation and rehabilitation, auditory electrophysiology, vestibular assessment, and hearing science.
• Editorial Board
• Information for Authors
• Submit a Paper
• Subscribe to this Title
• Membership Information
• Information for Advertisers
• Terms & Conditions
• Other Academy Publications
• About the Academy
• ingentaconnect is not responsible for the content or availability of external websites

Related content

• In this: publication
• By this: publisher
• In this Subject: Ear, Nose & Throat ,  Acoustics ,  Neuropsychology
• By this author: Blamey, Peter J. ;  Fiket, Hayley J. ;  Steele, Brenton R.

Website © Publishing Technology. Article copyright remains with the publisher, society or author(s) as specified within the article.

• Terms and conditions
• Privacy policy
• Information for advertisers