id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-011337-cyku17s8	Hsu, Fushun	Locating stridor caused by tumor compression by using a multichannel electronic stethoscope: a case report	2020-05-09		.txt	text/plain	3513	208	51	An energy-based localization algorithm was used to successfully locate the sound source of the stridor caused by tumor compression. The peak value of the stridor derived from the four sensors can be used to locate the source of the sound according to an energy-ratio least-squares method described in the following section. However, the focal stridor derived from tumor compression of the branching bronchus in this case is Fig. 4 Illustration of six localizing hyperspheres (colored circles) derived from four acoustic sensors (blue stars) and the estimated center of the source location (red star) more likely to be incorrectly identified as wheeze because of its ambiguous presentation during the expiratory phase and past medical history. We successfully located the sound source to be a circular area (mean radius = 9.40 mm and radial standard deviation = 14.97 mm) by using a simple energy decay model (Fig. 1a) . Acoustic mapping of the lung based on source localization of adventitious respiratory sound components	./cache/cord-011337-cyku17s8.txt	./txt/cord-011337-cyku17s8.txt