在购物中心听取:多束处理技术改善了听取在现实世界食品法院环境中的小组对话
Paula Folkeard1, Niels Søgaard Jensen2, Homayoun Kamkar Parsi3
1Faculty of Health Sciences, National Centre for Audiology, University of Western Ontario, London, Canada.
American journal of audiology
|July 10, 2024
概括
这项研究表明,具有多个适应性光束的先进助听器可以在杂的环境中改善对话理解. 参与者更喜欢助听器技术,该技术可以跟踪多个扬声器和头部运动,以获得更好的清晰度和更少的听力.
科学领域:
- 听力学和听力科学 听力学和听力科学
- 声学和信号处理
- 人类因素和人体工程学
背景情况:
- 助听器旨在在复杂的声学环境中提高语音可理解性.
- 传统的助听器难以应对多个扬声器和动态的听力情况.
- 适应式光束成形技术为增强定向听力提供了潜力.
研究的目的:
- 为了在现实世界的食品法院环境中评估一种新的自适应光束成型助听器.
- 评估助听器能够跟踪多个说话者并支持自然头部运动的能力.
- 为了比较主观的听力体验与不同的光束形成策略.
主要方法:
- 20名经验丰富的有神经感官听力损失的助听器用户参与了这项研究.
- 配备了带有两个不同的光束形成程序的双耳助听器.
- 参与者在杂的购物中心餐厅中对对话进行了评价,并提供了偏好判断.
主要成果:
- 这两种助听器程序在现实环境中都产生了积极的主观评分.
- 干预算法在理解,清晰度,专注,倾听力度和背景噪音降低方面表现出卓越的表现.
- 参与者在所有七个评估的对话方面都显著更喜欢干预算法.
结论:
- 具有多束自适应处理的助听器在现实环境中增强了主观体验.
- 计算多个对话者位置和头部转动的算法显著提高了用户的偏好.
- 这项技术在具有挑战性的,动态的社会环境中改善沟通的前景非常有希望.
更多相关视频
相关概念视频
Taste Buds and Receptors
Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
Microorganisms in Agriculture and Food industry
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
Microbes in Food Production
Microbial fermentation is central to food biotechnology, enhancing flavor, texture, preservation, and stability. Fermentative microorganisms metabolize carbohydrates into organic acids, alcohols, and other metabolites that inhibit spoilage organisms and improve digestibility while contributing distinctive sensory qualities.In baking, amylases naturally present in flour hydrolyze starch into monosaccharides such as glucose, which Saccharomyces cerevisiae ferments anaerobically. Through...
Pasteurization and Food Preservation
Pasteurization is a widely employed thermal processing technique designed to enhance the safety and shelf life of perishable food and beverages. By subjecting products to specific high temperatures for controlled durations, this method effectively inactivates pathogenic microorganisms and spoilage enzymes without significantly compromising sensory qualities. The technique has been pivotal in food safety management, especially for consumables susceptible to microbial contamination such as milk,...
Sources of Food Contamination
Contamination of food by microbial agents and natural toxins poses significant risks to public health. These hazards can be introduced at various points across the food supply chain, ranging from environmental sources to processing and storage stages. Understanding these contamination pathways is critical for developing strategies to ensure food safety.Seafood is particularly vulnerable to contamination through both environmental exposure and microbial colonization. Toxins from harmful algal...
Methods of Controlling Food Spoilage
Food spoilage is caused by microbial growth or by chemical and physical changes, all of which affect the taste, texture, and safety of food.Temperature-Based PreservationRefrigeration at 0–4 °C slows microbial growth and enzyme activity, making it ideal for short-term storage. However, certain spoilage organisms—such as psychrotrophs like Listeria monocytogenes—can still proliferate at these temperatures. Freezing below -18 °C further slows biological processes by forming ice crystals, which...


