How directional microphones affect speech recognition, listening effort and localisation for listeners with moderate-to-severe hearing loss

References

• Bentler R.A., Egge J.L., Tubbs J.L., Dittberner A.B. & Flamme G.A. 2004. Quantification of directional benefit across different polar response patterns. J Am Acad Audiol, 15, 649–659.
   PubMedGoogle Scholar
• Blauert J. (1997). Spatial Hearing-Revised Edition: The Psychophysics of Human Sound Localization. Cambridge (MA): MIT press.
   Google Scholar
• Cord M.T., Surr R.K., Walden B.E. & Olson L. 2002. Performance of directional microphone hearing aids in everyday life. J Am Acad Audiol, 13, 295–307.
   PubMedGoogle Scholar
• Cord M.T., Walden B.E., Surr R.K. & Dittberner A.B. 2007. Field evaluation of an asymmetric directional microphone fitting. J Am Acad Audiol, 18, 245–256.
   PubMed Web of Science ®Google Scholar
• Cox R.M., Alexander G.C., Gilmore C. & Pushakulich K.M. 1988. Use of the connected speech test (CST) with hearing-impaired listeners. Ear Hear, 9, 198–207.
   PubMed Web of Science ®Google Scholar
• Desjardins J.L. 2016. The effects of hearing aid directional microphone and noise reduction processing on listening effort in older adults with hearing loss. J Am Acad Audiol, 27, 29–41.
   PubMed Web of Science ®Google Scholar
• Gatehouse S. & Gordon J. 1990. Response times to speech stimuli as measures of benefit from amplification. Br J Audiol, 24, 63–68.
   PubMedGoogle Scholar
• Groth J. 2016. "Hearing aid directionality with binaural processing." AudiologyOnline, Article 17272 Retrieved January 4, 2017: www.audiologyonline.com.
   Google Scholar
• Hicks C. & Tharpe A. 2002. Listening effort and fatigue in school-age children with and without hearing loss. J Speech Lang Hear Res, 45, 573–584.
   PubMed Web of Science ®Google Scholar
• Hornsby B. & Ricketts T. 2007. Effects of noise source configuration on directional benefit using symmetric and asymmetric directional hearing aid fittings. Ear Hear, 28, 177–186.
   PubMed Web of Science ®Google Scholar
• Hornsby B.W. 2013. The effects of hearing aid use on listening effort and mental fatigue associated with sustained speech processing demands. Ear Hear, 34, 523–534.
   PubMed Web of Science ®Google Scholar
• Humes L.E., Wilson D.L., Barlow N.N. & Garner C. 2002. Changes in hearing-aid benefit following 1 or 2 years of hearing-aid use by older adults. J Speech Lang Hear Res, 45, 772–782.
   PubMed Web of Science ®Google Scholar
• Jones G.L. & Litovsky R.Y. 2011. A cocktail party model of spatial release from masking by both noise and speech interferers. J Acoust Soc Am, 130, 1463–1474.
   PubMed Web of Science ®Google Scholar
• Keidser G., Dillon H., Carter L. & O’Brien A. 2012. NAL-NL2 empirical adjustments. Trends Amplif, 16, 211–223.
   PubMedGoogle Scholar
• Keidser G., Rohresitz K., Dillon H., Hamacher V., Carter L., et al. 2006. The effect of multi-channel wide dynamic range compression, noise reduction, and the directional microphone on horizontal localization performance in hearing aid wearers. Int J Audiol, 45, 563–579.
   PubMed Web of Science ®Google Scholar
• Kim J.S. & Bryan M.F. 2011. The effects of asymmetric directional microphone fittings on acceptance of background noise. Int J Audiol, 50, 290–296.
   PubMed Web of Science ®Google Scholar
• Kramer S., Kapteyn T., Festen J. & Kuik D. 1997. Assessing aspects of auditory handicap by means of pupil dilatation. Int J Audiol, 36, 155–164.
   Google Scholar
• Marrone N., Mason C.R. & Kidd G. Jr 2008. The effects of hearing loss and age on the benefit of spatial separation between multiple talkers in reverberant rooms. J Acoust Soc Am, 124, 3064–3075.
   PubMed Web of Science ®Google Scholar
• McCoy S., Tun P., Cox C., Colangelo M., Stewart R., et al. 2005. Hearing loss and perceptual effort: Downstream effects on older adults’ memory for speech. Q J Exp Psychol A, 58, 22–33.
   PubMed Web of Science ®Google Scholar
• Middlebrooks J.C. & Green D.M. 1991. Sound localization by human listeners. Annu Rev Psychol, 42, 135–159.
   PubMed Web of Science ®Google Scholar
• Nachtegaal J., Kuik D.J., Anema J.R., Goverts S.T., Festen J.M., et al. 2009. Hearing status, need for recovery after work, and psychosocial work characteristics: Results from an internet-based national survey on hearing. Int J Audiol, 48, 684–691.
   PubMed Web of Science ®Google Scholar
• Olson L., Ioannou M. & Trine T.D. 2004. Appraising an automatically switching directional system in the real world. Hear J, 57, 32.
   Google Scholar
• Picou E.M., Aspell E. & Ricketts T.A. 2014. Potential benefits and limitations of three types of directional processing in hearing aids. Ear Hear, 35, 339–352.
   PubMed Web of Science ®Google Scholar
• Picou E.M., Gordon J. & Ricketts T.A. 2016. The effects of noise and reverberation on listening effort for listeners with normal hearing. Ear Hear, 37, 1–13.
   PubMed Web of Science ®Google Scholar
• Picou E.M., Moore T.M. & Ricketts T.A. 2017. The effects of directional processing on objective and subjective listening effort. J Speech Lang Hear Res, 60, 199–211.
   PubMed Web of Science ®Google Scholar
• Picou E.M. & Ricketts T.A. 2014. The effect of changing the secondary task in dual-task paradigms for measuring listening effort. Ear Hear, 35, 611–622.
   PubMed Web of Science ®Google Scholar
• Picou E.M., Ricketts T.A. & Hornsby B.W. 2013. How hearing aids, background noise, and visual cues influence objective listening effort. Ear Hear, 34, e52–e64.
   PubMed Web of Science ®Google Scholar
• Plomp R. 1978. Auditory handicap of hearing impairment and the limited benefit of hearing aids. J Acoust Soc Am, 63, 533–549.
   PubMed Web of Science ®Google Scholar
• Ricketts T. 2000. Directivity quantification in hearing aids: Fitting and measurement effects. Ear Hear, 21, 45–58.
   PubMed Web of Science ®Google Scholar
• Ricketts T., Henry P. & Gnewikow D. 2003. Full time directional versus user selectable microphone modes in hearing aids. Ear Hear, 24, 424–439.
   PubMed Web of Science ®Google Scholar
• Ricketts T. & Picou E. 2013. Speech recognition for bilaterally asymmetric and symmetric hearing aid microphone modes in simulated classroom environments. Ear Hear, 34, 601–609.
   PubMed Web of Science ®Google Scholar
• Ricketts T.A. & Dittberner A.B. 2002. Directional amplification for improved signal to noise ratio: Strategies, measurements and limitations. In: Valente, M. (ed.) Hearing Aids: Standards, Options and Limitations. 2nd ed. New York: Thieme Medical Publishers, pp. 274–346.
   Google Scholar
• Ricketts T.A., Henry P.P. & Hornsby B.W. 2005. Application of frequency importance functions to directivity for prediction of benefit in uniform fields. Ear Hear, 26, 473–486.
   PubMed Web of Science ®Google Scholar
• Ricketts T.A. & Hornsby B.W. 2003. Distance and reverberation effects on directional benefit. Ear Hear, 24, 472–484.
   PubMed Web of Science ®Google Scholar
• Ricketts T.A. & Hornsby B.W.Y. 2006. Directional hearing aid benefit in listeners with severe hearing loss. Int J Audiol, 45, 190–197.
   PubMed Web of Science ®Google Scholar
• Ricketts T.A., Picou E.M. & Galster J. 2017. Directional microphone hearing aids in school environments: Working toward optimization. J Speech Lang Hear Res, 60, 263–275.
   PubMed Web of Science ®Google Scholar
• Rönnberg J., Lunner T., Zekveld A., Sörqvist P., Danielsson H., et al. 2013. The ease of language understanding (ELU) model: Theory, data, and clinical implications. Front Syst Neurosci, 7, 1–17.
   PubMedGoogle Scholar
• Sarampalis A., Kalluri S., Edwards B. & Hafter E. 2009. Objective measures of listening effort: Effects of background noise and noise reduction. J Speech Lang Hear Res, 52, 1230–1240.
   PubMed Web of Science ®Google Scholar
• Sherbecoe R.L. & Studebaker G.A. 2003. Audibility-index predictions of normal-hearing and hearing-impaired listeners' performance on the connected speech test. Ear Hear, 24, 71–88.
   PubMedGoogle Scholar
• Studebaker G.A. 1985. A “rationalized” arcsine transform. J Speech Hear Res, 28, 455–462.
   PubMedGoogle Scholar
• van Den Bogaert T., Klasen T.J., Moonen M., van Deun L. & Wouters J. 2006. Horizontal localization with bilateral hearing aids: Without is better than with. J Acoust Soc Am, 119, 515–526.
   PubMed Web of Science ®Google Scholar
• Walden B.E., Surr R.K., Cord M.T. & Dyrlund O. 2004. Predicting hearing aid microphone preference in everyday listening. J Am Acad Audiol, 15, 365–396.
   PubMedGoogle Scholar
• Walden B.E., Surr R.K., Grant K.W., van Summers W., Cord M.T., et al. 2005. Effect of signal-to-noise ratio on directional microphone benefit and preference. J Am Acad Audiol, 16, 662–676.
   PubMedGoogle Scholar
• Woods D.L., Arbogast T., Doss Z., Younus M., Herron T.J., et al. 2015. Aided and unaided speech perception by older hearing impaired listeners. PloS One, 10, e0114922.
   PubMed Web of Science ®Google Scholar
• Wu Y.H. 2010. Effect of age on directional microphone hearing aid benefit and preference. J Am Acad Audiol, 21, 78–89.
   PubMed Web of Science ®Google Scholar
• Wu Y.H., Aksan N., Rizzo M., Stangl E., Zhang X., et al. 2014. Measuring listening effort: Driving simulator versus simple dual-task paradigm. Ear Hear, 35, 623–632.
   PubMed Web of Science ®Google Scholar
• Wu Y.H. & Bentler R.A. 2010. Impact of visual cues on directional benefit and preference: Part I-Laboratory tests. Ear Hear, 31, 22.
   PubMed Web of Science ®Google Scholar
• Zurek P.M. 1993. Binaural advantages and directional effects in speech intelligibility. In: Studebaker, G. A. & Hochberg, I. (eds.) Acoustical Factors Affecting Hearing-Aid Performance. Boston, MA: Allyn & Bacon, 255–276.
   Google Scholar