Research Repository

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Association between subjective tinnitus and cognitive performance: protocol for systematic review and meta-analysis (2018)
Journal Article
Clarke, N. A., Akeroyd, M. A., Henshaw, H., & Hoare, D. J. (2018). Association between subjective tinnitus and cognitive performance: protocol for systematic review and meta-analysis. BMJ Open, 8(8), doi:10.1136/bmjopen-2018-023700. ISSN 2044-6055

Introduction Subjective tinnitus is very common and has a number of comorbid associations including depression, sleep disturbance and concentration difficulties. Concentration difficulties may be observable in people with tinnitus through poorer... Read More

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. (in press). Influence of microphone housing on the directional response of piezoelectric MEMS microphones inspired by Ormia ochracea. IEEE Sensors Journal, ISSN 1530-437X

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

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), doi:10.1037/xhp0000321. ISSN 0096-1523

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

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, doi:10.1016/j.heares.2016.10.030. ISSN 0378-5955

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

Using acoustic simulations of hearing loss to describe health states: are they feasible and reliable to use? (2016)
Conference Proceeding
Williams, N., Pierzycki, R., Akeroyd, M. A., & Kitterick, P. T. (2016). Using acoustic simulations of hearing loss to describe health states: are they feasible and reliable to use?. doi:10.1016/j.jval.2016.09.212

Objectives Decisions about which treatments to provide in publicly-funded healthcare systems are partly based on the preferences of the general public. Preferences can be obtained by describing a health state before and after a treatment in word... Read More

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

Spatial hearing and hearing aids (2016)
Book
Akeroyd, M. A., & Whitmer, W. M. (2016). Spatial hearing and hearing aids. In B. C. Moore, G. R. Popelka, R. R. Fay, & A. N. Popper (Eds.), Hearing aidsSpringer-Verlag. doi: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

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), doi:10.1136/bmjopen-2016-011463. ISSN 2044-6055

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

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), doi:10.3766/jaaa.15101. ISSN 1050-0545

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

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, doi:10.1007/978-3-319-25474-6_47. ISSN 0065-2598

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

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, doi:10.1177/2331216515626570. ISSN 2331-2165

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

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, doi: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

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), doi:10.1177/2331216515572316. ISSN 2331-2165

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

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. doi: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

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, doi:10.1177/2331216514560442. ISSN 2331-2165

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

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, doi:10.3389/fnins.2014.00273. ISSN 1662-4548

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

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), doi:10.1097/AUD.0000000000000053. ISSN 0196-0202

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