Benefit of directional microphones and algorithm in realistic listening environments in cochlear implant recipients

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00018954

Enrollment

Registered

2019-10-25

Start date

2019-11-04

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Z96.2

Interventions

Group 1: For the bimodal study participants (N = 8) the hearing thresholds, the speech intelligibility of soft speech in quiet with and without the algorithm SoftVoice and the speech intelligibilty in

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: • Minimum of 18 years of age • native language German bimodal CI group • Minimum of six months experience with CI+HA • Naída CI Q70 or Q90 sound processor and • Speech reception threshold (SRT) <5 dB SNR for the OlSa in S0N0 with CI+HA bilateral CI group • Minimum of six months experience with bilateral CI • Naída CI Q70 or Q90 sound processors • SRT <5 dB SNR for the OlSa in S0N0 with bilateral CI

Exclusion criteria

Exclusion criteria: cognitive deficits, physical issue that would interfere with participation in the study

Design outcomes

Primary

Measure	Time frame
The speech intelligibility in noise was measured with the German Matrix Test Oldenburger Satztest (Olsa) in dB SNR in the bimodal condition in a acoustically reconstructed everyday situation. The microphones settings for comparison are omni directional and StereoZoom.	—

Secondary

Measure	Time frame
The speech intelligibility in noise was measured with the Olsa in dB SNR in the bilateral condition in a acoustically reconstructed everyday situation in the bilateral group. The microphones settings for comparison are omni directional and StereoZoom. The speech intelligibility in noise was measured with the Olsa in dB SNR in the bimodal and bilateral condition in a acoustically reconstructed everyday situation in the bimodal and bilateral group, respectively. The microphones settings for comparison are omni directional and UltraZoom. The speech intelligibilty in quiet in the bimodal and bilateral condition was measured with the Olsa in % correct answer with the algorithm SoftVoice activated and deactivated in the bimodal and bilateral group, respectively.	—

Measure

Time frame

The speech intelligibility in noise was measured with the Olsa in dB SNR in the bilateral condition in a acoustically reconstructed everyday situation in the bilateral group. The microphones settings for comparison are omni directional and StereoZoom. The speech intelligibility in noise was measured with the Olsa in dB SNR in the bimodal and bilateral condition in a acoustically reconstructed everyday situation in the bimodal and bilateral group, respectively. The microphones settings for comparison are omni directional and UltraZoom. The speech intelligibilty in quiet in the bimodal and bilateral condition was measured with the Olsa in % correct answer with the algorithm SoftVoice activated and deactivated in the bimodal and bilateral group, respectively.

—

Countries

Germany

Contacts

Public ContactThomas Wesarg

UNIVERSITÄTSKLINIKUM FREIBURGKlinik für Hals-, Nasen- und OhrenheilkundeSektion Cochlear Implant

thomas.wesarg@uniklinik-freiburg.de+49 761 270-72749

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026