Prof. Chava Muchnik

  • Emeritus in Communication Disorders
  • School of Health Professions
חוג למודי הפרעות בתקשורת אמריטוס
Prof. Chava Muchnik
Phone: 03-6409217
External phone: 03-5349817
Fax: 03-5352868


Professor, Head of the Department of Communication Disorders, Steyer School of Health Professions, Sackler Faculty of Medicine

Senior Audiologist, Speech and Hearing Center, Sheba Medical Center



Hearing Science and Clinical Audiology

One of our main research areas is related to the effect of noise on speech perception, in young, middle-aged and elderly populations. A major complaint of hearing impaired and normal hearing adults is the difficulty to understand speech in the presence of noise. Our attempt to address this challenging problem encompasses several aspects:

  1. Improving the signal to noise ratio in sensory aids (hearing aids and cochlear implants). Recently we demonstrated a significant beneficial effect of a single channel Cochlear-based Noise Reduction Algorithm (CNRA) in hearing aids users and cochlear implants recipients. Further investigation is required for improving CNRA performance at lower SNRs and in different noise spectra.
  2. Investigating the influence of aging on the recognition of speech in background noise: Aging is known to induce physio-pathological changes in the entire auditory pathways. While there is a comprehensive documentation of this difficulty amongst elderly people aged 65 years and above, limited information is available on middle-aged listeners.

Another topic in our research is the estimation of the potential risk for hearing loss as a result of listening to music with Personal Listening Devices (PLDs). We are studying the function of the efferent auditory system in normal and pathological populations such as children and adults with Auditory Processing Disorders and Childhood Selective Mutism.

Cochlear Implants are another area of research interest. In particular we are studying the characteristic features of the electrical nerve response in cochlear implant recipients.

Awards and Prizes

D. Ari-Even Roth, C. Muchnik, M. Hildesheimer, Y. Henkin. Auditory brainstem response in young children with autistic spectrum disorders. Dev Med Child Neurol. 54 : 23-29, 2012

C. Muchnik, N. Amir, E. Shabtai, R. Kaplan-Neeman, Preferred listening levels to personal devices in young teenagers: self reports and physical measurements. International Journal of Audiology , 51:287-293, 2012

R. Kaplan-Neeman, C. Muchnik, M. Hildesheimer, Y. Henkin. Hearing aid satisfaction and use in the advanced digital era. Laryngoscope, 122: 2029-2036, 2012

N. Fink, M. Furst, C. Muchnik. Improving word recognition in noise of hearing impaired subjects with a single – channel cochlear noise reduction algorithm. Journal of the Acoustical Society of America, 132: 1718-1731, 2012

C. Muchnik, D. Ari-Even Roth, M. Hildesheimer, M. Arie, Y. Bar-Haim, Y. Henkin (2013) Abnormalities in auditory efferent activities in children with selective mutism. Audiology & Neurotology, 18:353-61, 2013.

Y. Shapira, L. Migirov, Y. Yaar-Soffer, C. Muchnik, M. Hildesheimer, Y. Henkin. Pain in cochlear implant recipients – An uncommon, yet serious consequence of cochlear implantation. The Larynogoscope 125:1946-1951, 2015.

Y. Henkin, Y. Yaar-Soffer, M. Steinberg, C. Muchnik. Neural correlates of auditory-cogntive processing in older adults with cochlear implants. Audiology & Neurotology 19:S21-6, 2014.

Tel Aviv University, P.O. Box 39040, Tel Aviv 6997801, Israel
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