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Updated: May 21, 2026

Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode
Published on: October 11, 2024
A new audio processor for combined electric and acoustic stimulation for the treatment of partial deafness
Artur Lorens1, Malgorzata Zgoda, Henryk Skarzynski
1Institute of Physiology and Pathology of Hearing, Warsaw, Poland. a.lorens@ifps.org.pl
Conclusion:
The results of this study demonstrate that a conversion from the Duet to Duet 2 audio processor greatly improved patient satisfaction and subjective benefits.
Objectives:
The aims of this study were to compare the DUET 2 audio processor to the DUET speech processor and to evaluate DUET 2 user satisfaction subjectively.
Methods:
Ten experienced electric acoustic stimulation (EAS) users following partial deafness treatment upgraded from the MED-EL DUET to the DUET 2 were tested with the adaptive auditory speech test, Pruszewicz monosyllabic word test, visual analog scales, and Duet 2 user questionnaire. Tests were performed post-upgrade and compared simultaneously to the DUET at three test intervals over 3 months.
Results:
Objective analyses showed that all subjects performed as well with the DUET 2 as the DUET. There was a tendency toward better results with the DUET 2. Subjective testing indicated DUET 2 user preference upon speech and musical stimuli. DUET 2 subject satisfaction was high for wearing comfort, sound quality, and for FineTuner and Private Alert features.

