Natacha Chetritt-Bonneyrat’s devotion to her career as an audioprosthetist is built on an emotional bond and on her own personal history.


Her grandmother, whom she greatly admired, was hard of hearing, and later on, her younger sister also developed a hearing impairment.

Originally from Nantes, Natacha Chetritt-Bonneyrat began her university studies at Hôpital Edouard Herriot in Lyon, where she earned a DU (university diploma) in audiophonology and functional explorations.


Due to her outstanding performance and abilities, she was authorized to pursue specialized courses normally reserved for professionals or more experienced students.


She worked under Professors Morgon, Dubreuil and Truy, and more intensively under Professor Lionel Collet.

It was within this hospital ENT medicine department, as Professor Collet’s trainee, that she became aware of the desperation of patients suffering from tinnitus and developed a desire to devote her career to helping them.

She then began studying at the Montpellier Faculty of Pharmacy and solidified her knowledge and abilities by earning a state diploma in audioprosthesis in 1997.

She returned to Brittany and settled in Quimper to exercise her profession and calling as an audioprosthetist, as an independent practitioner not affiliated with a group, which gave her the freedom to conduct in-depth research, in parallel, for the purpose of better understanding the mechanisms behind tinnitus and hyperacusis. This total freedom enabled her to exercise her profession ethically and with respect for her patients.

During this period, her sensitivity and commitment also led her to co-found AFDA, the Finistère Associationfor Hearing-Impaired Children, with Mr. J.J. Lepage and in collaboration with medical professionals.

Unrelenting, Natacha Chetritt-Bonneyrat took part in March 2001 in the first training program given in France by Professor Pawel J. Jastrebooff, teaching his TRT® (Tinnitus Retraining Therapy) method.

In 2004, her devotion to working for children led Natacha Chetritt-Bonneyrat to purchase an emblematic Parisian laboratory specialized in hearing aids for children. She worked tirelessly, collaborating with the capital’s largest hospitals such as Hôpital Armand Trousseau, Robert Debré, Necker or the Arthur Vernes Clinic, for the fitting of hearing aids for children and especially for infants.

Natacha Chetritt-Bonneyrat would later incorporate into her ØREBLUE® therapeutic treatment protocol the in-depth psychological skills she had developed to meet the needs of these young patients and their families.

In 2009, Natacha Chetritt-Bonneyrat decided to devote more time to her research, so she sold her laboratory, which had developed a good reputation, and left the big city, hoping to reduce her work load and increase the time available for reflection.

She supplemented her audiology and acoustic physics qualifications by earning a degree in psychology from the University of Bergamo, in Italy, in order to be able to understand individuals holistically.

This decision would have a positive impact on her future !

After 21 years of tireless research, Natacha CHETRITT-BONNEYRAT developed the ØREBLUE® method, which could eradicate the symptoms of hyperacusis and tinnitus to an extent as yet unrivalled.


In September 2017, Natacha Chetritt-Bonneyrat obtained the medical certification ISO 13485 :2016 for her company Mayfair Developments in La Rochelle.


Earning this certification was the first step in obtaining recognition of the treatment device associated with the ØREBLUE® method. To date, she is the first and only French audioprosthetist with this level of professional certification.

In March 2019, after a 17-month-long procedure carried out by an independent certifying organization, the treatment device used in the ØREBLUE® method obtained CE Medical certification (CE no. 667381, BSI organization), and is officially registered with the ANSM (the French National Agency for the Security of Medications and Healthcare Products).

It is the first device in Europe to be certified CE Medical Class IIa, guaranteeing a clinical benefit for treatments administered to patients suffering from hyperacusis!

The year 2021 sees the medical recognition of the work of Natacha CHETRITT-BONNEYRAT with the publication by the international and scientific Journal of Hearing Science of the clinical study on the results obtained through the use of the ØREBLUE® therapeutic protocol on a sample of patients.