Ear to the ground...

Evaluation of a Pinna Compensation Algorithm for Sound Localization and Speech Perception in Noise.

CONCLUSIONS: This study confirmed that the use of the PC algorithm improved localization on the horizontal plane and speech-in-noise performance. These results support the use of the PC algorithm in BTE fittings. PMID: 23275583 [PubMed - as supplied by publisher] (Source: American Journal of Audiology)...

Speech comprehension training and auditory and cognitive processing in older adults.

CONCLUSIONS: There is a new imperative to complement training to increase bottom-up processing of the signal with more ecologically valid training to boost top-down information processing based on knowledge of language and the world. Advances in digital technologies enable the development of increasingly sophisticated training systems incorporating complex meaningful materials such as music, audiovisual interactive displays, and conversation. PMID: 23233521 [PubMed - in process] (Source: American Journal of Audiology)...

Effects of signal level and spectral contrast on vowel formant discrimination for normal-hearing and hearing-impaired listeners.

CONCLUSION: These results indicate that a combination of spectral enhancement of F2 and high speech level is most beneficial to improve vowel formant discrimination for hearing-impaired listeners. PMID: 23221306 [PubMed - as supplied by publisher] (Source: American Journal of Audiology)...

New HRCT-based measurement of the human outer ear canal as a basis for acoustical methods: Development of the method and results.

CONCLUSION: The values obtained can be employed to develop a method that represents the shape of the auditory canal as accurately as possible to allow the best possible outcomes for hearing aid fitting. PMID: 23064418 [PubMed - as supplied by publisher] (Source: American Journal of Audiology)...

Speech Recognition in Noise and Subjective Perceptions of Neckloop FM Receivers with Cochlear Implants.

CONCLUSIONS: The results of the study suggested that neckloop FM receivers significantly improved speech recognition in noise and everyday listening challenges of people using the CIs in two separate test sessions. Additional research is warranted for other types of neckloop receivers and CI sound processors. PMID: 22992447 [PubMed - as supplied by publisher] (Source: American Journal of Audiology)...

An Evidence-Based Systematic Review of Amplitude Compression in Hearing Aids for School-Age Children with Hearing Loss.

CONCLUSIONS: Moderate evidence from the included studies demonstrated that audibility was improved and speech recognition was either maintained or improved with wide dynamic range compression as compared to linear amplification. No significant differences were observed between compression limiting and peak clipping on outcomes (i.e., speech recognition and self-/parent-report) reported across the two studies. Preference ratings appear to be influenced by participant characteristics and environmental factors. Further research is needed before conclusions can confidently be drawn. PMID: 22858616 [PubMed - as supplied by publisher] (Source: American Journal of Audiology)...

The Accuracy of Matching Target Insertion Gains with Open-Fit Hearing Aids.

CONCLUSIONS: These outcomes suggest that target insertion gains for the open-fit hearing aids used here are rarely achieved with a first fitting, but can usually be achieved through adjustments based on REIG measurements. PMID: 22846638 [PubMed - as supplied by publisher] (Source: American Journal of Audiology)...

Acceptable Noise Level (ANL) and Psychophysical Masking.

CONCLUSIONS: Findings suggest low ANLs are associated with reduced afferent cortical responsiveness and, possibly, decreased sustained attention. PMID: 22718324 [PubMed - as supplied by publisher] (Source: American Journal of Audiology)...