Phonak Hearing Systems pass through different development and study stages. At an early stage, feasibility studies are conducted to investigate new algorithms, features and functions in an isolated manner. If the benefit is proven, their performance is then investigated regarding interdependency between all available algorithms, features and functions running in parallel in a hearing aid (pivotal/pre-validation studies) and, as a result, they get optimized. Afterwards, and prior to product launch, the Phonak Hearing Systems undergo a final quality control in terms of clinical trials. This is a pre-validation study, investigating optimized algorithms, features and functions. This will be a clinical evaluation which will be conducted mono centric at Sonova AG Headquarters based in Stäfa (Switzerland).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
20
The successor of Phonak Audéo B-Direct will be fitted to the participants indivudal hearing loss.
The Phonak Audéo B-Direct will be fitted to the participants individual hearing loss.
Sonova AG
Stäfa, Canton of Zurich, Switzerland
Spontaneous acceptance of the initial pre-calculation (first fit)
The data, serving as primary outcomes are collected in the first study appointment. The spontaneous acceptance of the initial pre-calculation (also called 'first fit') in regard to loudness and sound quality will be assessed with the aid of a systematic interview in lab.
Time frame: One week
Listening effort in noisy listening environment
The data, serving as secondary outcomes are collected in the second study appointment. The listening effort in noisy listening environments will be assessed under controlled conditions in lab with the aid of the Adaptive Categorial Listening Effort Scaling Test (ACALES). The result shows the listening effort on a scale from 'no effort - extreme effort' at different signal to noise ratios.
Time frame: One week
Speech intelligibility in noisy listening environment
The data, serving as secondary outcomes are collected in the third study appointment. The speech intelligibility in noise will be assessed with the aid of the german Oldenburg sentence test (OLSA) under controlled conditions in lab. The result is the signal to noise ratio in dB (dB SNR).
Time frame: One week
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