Saleh Hasan K, Folkeard Paula, Kuehnel Volker, Voss Solveig, Qian Jinyu, Scollie Susan
School of Speech and Hearing Sciences, College of Nursing and Health Professions, The University of Southern Mississippi, Hattiesburg, MS, USA.
National Centre for Audiology, Western University, London, Canada.
Int J Audiol. 2025 Aug;64(8):840-852. doi: 10.1080/14992027.2024.2414096. Epub 2024 Oct 13.
To assess the effect of forward and omnidirectional microphone configurations in BiCROS versus monaural hearing aids on objective and subjective outcomes in different noise conditions.
After fitting and a 4-week acclimatisation period, speech recognition and sound quality were measured using forward directional, omnidirectional, and unaided settings. Two noise configurations were used, surrounding noise and noise presented from the aided (better) ear. Subjective outcomes were assessed using the SSQ-b and BBSS questionnaires and participant interviews.
Eighteen adult participants (mean: 74.6 y; range: 61-94 y; ten males, eight females) with mild to moderately severe SNHL in their better ear (PTA0.5-4khz > 20 dB HL) and limited usable hearing in their poorer ear (average PTA0.5-4khz > 100 dB HL).
Significant improvement in speech recognition and sound quality for BiCROS and monaural directional settings over omnidirectional and unaided, in both noise configurations. There were no significant differences observed between monoaural and BiCROS directional settings.
Speech in noise recognition and sound quality scores demonstrated a significant directional benefit for both BiCROS and monaural directional fitting settings over omnidirectional and unaided conditions. Unique BiCROS-specific experiences were identified in a patient-oriented approach. These can inform the development of BiCROS-tailored tools.
评估双耳互传（BiCROS）中向前和全向麦克风配置与单耳助听器相比，在不同噪声条件下对客观和主观结果的影响。
在验配及4周的适应期后，使用向前指向性、全向性和未佩戴助听器的设置测量言语识别和声音质量。使用了两种噪声配置，即周围噪声和从助听（较好）耳呈现的噪声。使用SSQ-b和BBSS问卷以及参与者访谈来评估主观结果。
18名成年参与者（平均年龄：74.6岁；范围：61 - 94岁；男性10名，女性8名），较好耳患有轻度至中度重度感音神经性听力损失（0.5 - 4kHz的纯音听阈均值>20dB HL），较差耳可用听力有限（0.5 - 4kHz的平均纯音听阈>100dB HL）。
在两种噪声配置下，BiCROS和单耳指向性设置在言语识别和声音质量方面均显著优于全向性和未佩戴助听器的情况。单耳和BiCROS指向性设置之间未观察到显著差异。
在噪声中的言语识别和声音质量得分表明，与全向性和未佩戴助听器的情况相比，BiCROS和单耳指向性验配设置均具有显著的指向性优势。通过以患者为导向的方法识别出了独特的BiCROS特定体验。这些可为定制BiCROS的工具提供参考。
