All Outputs (43)

Influence of microphone housing on the directional response of piezoelectric MEMS microphones inspired by Ormia ochracea (2017)
Journal Article
Bauer, R., Zhang, Y., Jackson, J. C., Whitmer, W. M., Brimijoin, W. O., Akeroyd, M. A., …Windmill, J. F. (2017). Influence of microphone housing on the directional response of piezoelectric MEMS microphones inspired by Ormia ochracea. IEEE Sensors Journal, 17(17), 5529 - 5536. https://doi.org/10.1109/JSEN.2017.2729619

The influence of custom microphone housings on the acoustic directionality and frequency response of a multi-band bio-inspired MEMS microphone is presented. The 3.2mm by 1.7mm piezoelectric MEMS microphone, fabricated by a cost-effective multi-user p... Read More about Influence of microphone housing on the directional response of piezoelectric MEMS microphones inspired by Ormia ochracea.

Auditory compensation for head rotation is incomplete (2016)
Journal Article
Freeman, T., Culling, J., Akeroyd, M. A., & Brimijoin, W. O. (in press). Auditory compensation for head rotation is incomplete. Journal of Experimental Psychology: Human Perception and Performance, 43(2), https://doi.org/10.1037/xhp0000321

Hearing is confronted by a similar problem to vision when the observer moves. The image motion that is created remains ambiguous until the observer knows the velocity of eye and/or head. One way the visual system solves this problem is to use motor c... Read More about Auditory compensation for head rotation is incomplete.

Lifetime leisure music exposure associated with increased frequency of tinnitus (2016)
Journal Article
Moore, D. R., Zobay, O., Mackinnon, R. C., Whitmer, W. M., & Akeroyd, M. A. (2017). Lifetime leisure music exposure associated with increased frequency of tinnitus. Hearing Research, 347, 18-27. https://doi.org/10.1016/j.heares.2016.10.030

Tinnitus has been linked to noise exposure, a common form of which is listening to music as a leisure activity. The relationship between tinnitus and type and duration of music exposure is not well understood. We conducted an internet-based populatio... Read More about Lifetime leisure music exposure associated with increased frequency of tinnitus.

Spatial hearing and hearing aids (2016)
Book Chapter
Akeroyd, M. A., & Whitmer, W. M. (2016). Spatial hearing and hearing aids. In G. R. Popelka, B. C. Moore, R. R. Fay, & A. N. Popper (Eds.), Hearing aids. Springer-Verlag. https://doi.org/10.1007/978-3-319-33036-5_7

The questions of whether hearing-impaired listeners are also impaired for the localization of sounds and what benefits hearing aids can provide are important for understanding the wider effects of hearing impairment. We review here 29 studies publis... Read More about Spatial hearing and hearing aids.

Hearing aid validation (2016)
Book Chapter
Whitmer, W. M., Wright-Whyte, K. F., Holman, J. A., & Akeroyd, M. A. (2016). Hearing aid validation. In G. R. Popelka, B. C. Moore, R. R. Fay, & A. N. Popper (Eds.), Hearing aids. Springer Science+Business Media

Validation provides quality assurance that a hearing aid wearer’s needs are being met—that the solution meets not only their technical requirements (i.e., verification) but also their requirements for everyday communication. In the past 50 years, the... Read More about Hearing aid validation.

Domains relating to the everyday impact of hearing loss, as reported by patients or their communication partner(s): protocol for a systematic review (2016)
Journal Article
Vas, V., Akeroyd, M. A., & Hall, D. A. (2016). Domains relating to the everyday impact of hearing loss, as reported by patients or their communication partner(s): protocol for a systematic review. BMJ Open, 6(9), 1-6. https://doi.org/10.1136/bmjopen-2016-011463

INTRODUCTION:
Hearing loss is a highly prevalent condition that affects around 1 in 6 people in the UK alone. This number is predicted to rise by the year 2031 to a staggering 14.5 million people due to the ageing population of the UK. Currently, th... Read More about Domains relating to the everyday impact of hearing loss, as reported by patients or their communication partner(s): protocol for a systematic review.

The effects of hearing impairment, age, and hearing aids on the use of self motion for determining front/back location (2016)
Journal Article
Brimijoin, W. O., & Akeroyd, M. A. (2016). The effects of hearing impairment, age, and hearing aids on the use of self motion for determining front/back location. Journal of the American Academy of Audiology, 27(7), https://doi.org/10.3766/jaaa.15101

Background:

There are two cues that listeners use to disambiguate the front/back location of a sound source: high-frequency spectral cues associated with the head and pinnae, and self-motion‐related binaural cues. The use of these cues can be comp... Read More about The effects of hearing impairment, age, and hearing aids on the use of self motion for determining front/back location.

On detectable and meaningful speech-intelligibility benefits (2016)
Journal Article
Whitmer, W. M., McShefferty, D., & Akeroyd, M. A. (in press). On detectable and meaningful speech-intelligibility benefits. Advances in Experimental Medicine and Biology, 894, https://doi.org/10.1007/978-3-319-25474-6_47

The most important parameter that affects the ability to hear and understand speech in the presence of background noise is the signal-to-noise ratio (SNR). Despite decades of research in speech intelligibility, it is not currently known how much impr... Read More about On detectable and meaningful speech-intelligibility benefits.

The Glasgow Benefit Inventory: a systematic review of the use and value of an otorhinolaryngological generic patient-recorded outcome measure (2016)
Journal Article
Hendry, J., Chin, A., Swan, I. R., Akeroyd, M. A., & Browning, G. G. (2016). The Glasgow Benefit Inventory: a systematic review of the use and value of an otorhinolaryngological generic patient-recorded outcome measure. Clinical Otolaryngology, 41(3), https://doi.org/10.1111/coa.12518

The Glasgow Benefit Inventory (GBI) is a validated, generic patient-recorded outcome measure widely used in otolaryngology to report change in quality of life post-intervention.To date, no systematic review has made (i) a quality assessment of report... Read More about The Glasgow Benefit Inventory: a systematic review of the use and value of an otorhinolaryngological generic patient-recorded outcome measure.

The just meaningful difference in speech-to-noise ratio (2016)
Journal Article
McShefferty, D., Whitmer, W. M., & Akeroyd, M. A. (2016). The just meaningful difference in speech-to-noise ratio. Trends in Hearing, 20, https://doi.org/10.1177/2331216515626570

The speech-to-noise ratio (SNR) in an environment plays a vital role in speech communication for both normal-hearing (NH) and hearing-impaired (HI) listeners. While hearing-assistance devices attempt to deliver as favorable an SNR as possible, there... Read More about The just meaningful difference in speech-to-noise ratio.

International Collegium of Rehabilitative Audiology (ICRA) recommendations for the construction of multilingual speech tests: ICRA Working Group on Multilingual Speech Tests (2015)
Journal Article
Akeroyd, M. A., Arlinger, S., Bentler, R. A., Boothroyd, A., Dillier, N., Dreschler, W. A., …Kollmeier, B. (2015). International Collegium of Rehabilitative Audiology (ICRA) recommendations for the construction of multilingual speech tests: ICRA Working Group on Multilingual Speech Tests. International Journal of Audiology, 54(Sup. 2), 17-22. https://doi.org/10.3109/14992027.2015.1030513

Objective: To provide guidelines for the development of two types of closed-set speech-perception tests that can be applied and interpreted in the same way across languages. The guidelines cover the digit triplet and the matrix sentence tests that ar... Read More about International Collegium of Rehabilitative Audiology (ICRA) recommendations for the construction of multilingual speech tests: ICRA Working Group on Multilingual Speech Tests.

The just-noticeable difference in speech-to-noise ratio (2015)
Journal Article
McShefferty, D., Whitmer, W. M., & Akeroyd, M. A. (2015). The just-noticeable difference in speech-to-noise ratio. Trends in Hearing, 19(1), https://doi.org/10.1177/2331216515572316

Just-noticeable differences (JNDs) have been measured for various features of sounds, but despite its importance to communication, there is no benchmark for what is a just-noticeable—and possibly meaningful—difference in speech-to-noise ratio (SNR).... Read More about The just-noticeable difference in speech-to-noise ratio.

Distractions during critical phases of anaesthesia for caesarean section: an observational study (2014)
Journal Article
Jenkins, A., Wilkinson, J. V., Akeroyd, M. A., & Broom, M. A. (2015). Distractions during critical phases of anaesthesia for caesarean section: an observational study. Anaesthesia, 70(5), 543-548. https://doi.org/10.1111/anae.12979

Aviation's 'sterile cockpit' rule holds that distractions on the flight deck should be kept at a minimum during critical phases of flight. To assess current practice at comparable points during obstetric regional anaesthesia, we measured ambient nois... Read More about Distractions during critical phases of anaesthesia for caesarean section: an observational study.

An overview of the major phenomena of the localization of sound sources by normal-hearing, hearing-impaired, and aided listeners (2014)
Journal Article
Akeroyd, M. A. (2014). An overview of the major phenomena of the localization of sound sources by normal-hearing, hearing-impaired, and aided listeners. Trends in Hearing, 18, https://doi.org/10.1177/2331216514560442

Localizing a sound source requires the auditory system to determine its direction and its distance. In general, hearing-impaired listeners do less well in experiments measuring localization performance than normal-hearing listeners, and hearing aids... Read More about An overview of the major phenomena of the localization of sound sources by normal-hearing, hearing-impaired, and aided listeners.

The moving minimum audible angle is smaller during self motion than during source motion (2014)
Journal Article
Brimijoin, W. O., & Akeroyd, M. A. (2014). The moving minimum audible angle is smaller during self motion than during source motion. Frontiers in Neuroscience, 8, Article 273. https://doi.org/10.3389/fnins.2014.00273

We are rarely perfectly still: our heads rotate in three axes and move in three dimensions, constantly varying the spectral and binaural cues at the ear drums. In spite of this motion, static sound sources in the world are typically perceived as stab... Read More about The moving minimum audible angle is smaller during self motion than during source motion.

The effect of hearing aid microphone mode on performance in an auditory orienting task (2014)
Journal Article
Brimijoin, W. O., Whitmer, W. M., McShefferty, D., & Akeroyd, M. A. (2014). The effect of hearing aid microphone mode on performance in an auditory orienting task. Ear and Hearing, 35(5), Article e204-e212. https://doi.org/10.1097/AUD.0000000000000053

OBJECTIVES:

Although directional microphones on a hearing aid provide a signal-to-noise ratio benefit in a noisy background, the amount of benefit is dependent on how close the signal of interest is to the front of the user. It is assumed that whe... Read More about The effect of hearing aid microphone mode on performance in an auditory orienting task.

Variations in the slope of the psychometric functions for speech intelligibility: a systematic survey (2014)
Journal Article
MacPherson, A., & Akeroyd, M. A. (2014). Variations in the slope of the psychometric functions for speech intelligibility: a systematic survey. Trends in Hearing, 18, https://doi.org/10.1177/2331216514537722

Although many studies have looked at the effects of different listening conditions on the intelligibility of speech, their analyses have often concentrated on changes to a single value on the psychometric function, namely, the threshold. Far less com... Read More about Variations in the slope of the psychometric functions for speech intelligibility: a systematic survey.

The perception of apparent auditory source width in hearing-impaired adults (2014)
Journal Article
Whitmer, W. M., Seeber, B. U., & Akeroyd, M. A. (2014). The perception of apparent auditory source width in hearing-impaired adults. Nature Energy, 135(6), https://doi.org/10.1121/1.4875575

In a previous study [Whitmer, Seeber and Akeroyd, J. Acoust. Soc. Am. 132, 369-379 (2012)], it was demonstrated that older hearing-impaired (HI) listeners produced visual sketches of headphone-presented noises that were insensitive to changes in inte... Read More about The perception of apparent auditory source width in hearing-impaired adults.

A method for measuring the intelligibility of uninterrupted, continuous speech (2014)
Journal Article
MacPherson, A., & Akeroyd, M. A. (2014). A method for measuring the intelligibility of uninterrupted, continuous speech. Journal of the Acoustical Society of America, 135(3), 1027-1030. https://doi.org/10.1121/1.4863657

Speech-in-noise tests commonly use short, discrete sentences as representative samples of everyday speech. These tests cannot, however, fully represent the added demands of understanding ongoing, linguistically complex speech. Using a new monitoring... Read More about A method for measuring the intelligibility of uninterrupted, continuous speech.

Proposed norms for the Glasgow hearing-aid benefit profile (Ghabp) questionnaire (2014)
Journal Article
Whitmer, W. M., Howell, P., & Akeroyd, M. A. (2014). Proposed norms for the Glasgow hearing-aid benefit profile (Ghabp) questionnaire. International Journal of Audiology, 53(5), 345-351. https://doi.org/10.3109/14992027.2013.876110

Objective: To form a normative set of responses to the GHABP questionnaire from a large regional dataset. Design: Participants were asked to rate their hearing disability, handicap, hearing-aid (HA) use, HA benefit, HA satisfaction, and residual (aid... Read More about Proposed norms for the Glasgow hearing-aid benefit profile (Ghabp) questionnaire.