摘要:
The first signal not higher than a predetermined frequency is output to a subwoofer out of the multichannel reproduction signals supplied from a sound source and, at the same time, the second signal higher than the predetermined frequency is output to a plurality of non-closed type headphones and the signals are processed for each of the channels corresponding to a plurality of headphones, considering links of the low tones to be output from the subwoofer according to the first signal and medium to high tones to be output from the plurality of non-closed type headphones according to the second signal.
摘要:
Provided is a technique for improving frequency characteristics by an acoustics-related method so that a sound is heard with natural frequency characteristics when a sound-isolating earphone is fitted in a human ear. A sound-isolating earphone is provided with two or more electroacoustic transducers, wherein independently generated sound waves are passed through isolated sound leading pipes and are mixed just before an entrance of an external auditory canal, and a sound wave of which is twice the difference between path lengths of the two sound leading pipes is attenuated. This serves to provide an easy-to-hear improved sound quality by suppressing the sound wave at around 6 kHz that is transmitted with characteristically high intensity in a sound-isolating earphone.
摘要:
A solution monitoring system is provided for gathering, filtering, and analyzing information associated with solutions for managing monitoring, upgrades, and migrations. Telemetry may be recorded for various types of solution events and various properties of solutions as part of an add-in intelligence. Furthermore, add-in management tools are provided for administrators and end users.
摘要:
An object is to provide a corium cooling structure that is capable of accumulating corium and debris that have flowed out from a reactor in small divided portions and of sufficiently cooling the high-temperature corium and debris, a reactor containment vessel provided with the same, and a nuclear power plant provided with the same. A capture portion that captures the corium that has flowed out from a reactor and a plurality of pipe portions that are provided in a coolant storing portion and into which the corium flows via the capture portion are provided.
摘要:
An electroacoustic transducer apparatus of a type that it is inserted into a cavum concha upon use. The electroacoustic transducer apparatus of the invention is applied to a headphone of a so-called in-the-eart type or so-called inner-ear type. This headphone is provided with an air passage portion formed through an elastic ring member attached to the outer peripheral portion of the housing so as to communicate the inside and outside portions of a concave portion of the cavum concha upon use. Accordingly, a certain amount of sound escapes to the outside, thereby obtaining the acoustic characteristics of substantially the same level from a low band to a high band regardless of the size of the user's ears.
摘要:
An earphone having a housing, a speaker unit accommodated in the housing and a duct formed in the housing to pass sound emanated from the rear surface of the speaker unit and in which a mesh subjected to water repellent treatment is provided within the duct.
摘要:
A technology which improves frequency characteristics by an acoustic method so that, when a sound-isolating earphone is attached to a human ear, the sound is heard with natural frequency characteristics is provided. In a sound path from a diaphragm of an electro-acoustic transducer inside a sound-isolating earphone to the eardrum passing through a cylindrical sound leading pipe via the external auditory canal, two independent paths for sound waves are provided in the sound leading pipe, and transfer of the sound with a specific frequency is suppressed by adjusting a difference in length of the paths, whereby the frequency characteristics of the sound passing through this sound path are improved.
摘要:
A reproduced sound of high quality is allowed to be listened to by a listener while natural sound image localization is provided. By providing a housing 4L having internal space mounted at a predetermined position of the head of the listener, a speaker unit 7L mounted on one surface of the housing 4L and positioned away from an entrance of an external acoustic meatus of the listener for a predetermined distance when the housing 4L is mounted on the head 100 of the listener, and a tubular duct 8L extended so as to allow a sound generated by the housing 4L to reach the vicinity of the entrance of the external acoustic meatus of the listener, the sound generated by the housing 4L can be directly reached to an eardrum 103L in the inside of the external acoustic meatus from the vicinity of the entrance of the external acoustic meatus of the listener via a tubular duct 8L. In this manner, a sound at an sufficient level can be listened to by the listener while the natural sound image localization is provided as an open type.
摘要:
An ear speaker device includes an electroacoustic transducer including a housing mounted at a predetermined position of listener's head, a speaker unit mounted on one surface in the housing, and positioned away from an entrance of the listener's external acoustic meatus for a predetermined distance when the housing is mounted on the listener's head, and a tubular duct extended so as to allow a sound generated by the housing in the inner space thereof to reach the vicinity of the entrance of the listener's external acoustic meatus, and a hole for emitting sound of the duct is oriented to the opposite direction with respect to the entrance of the external acoustic meatus; and a mounting part used for mounting the electroacoustic transducer on the listener's head in a manner that the predetermined distance is provided between the speaker unit and the entrance of the listener's external acoustic meatus.
摘要:
A leak detecting method and apparatus for a gas pipe line in which the inflow rate Qin or the outflow rate Qout is measured from instant to instant at each of all the inlet and outlet ports of the gas pipe line and the presence or absence of a gas leak is determined in accordance with the measured values. The measured inflow rates Qin and outflow rates Qout are respectively integrated over a given period of time and the occurrence of a gas leak is determined when the sum .SIGMA..intg.Qdt of the integrated values deviates from a predetermined value. On that occasion, in accordance with the data obtained by these calculations the relation between the integration time and the standard deviation of .intg.Qindt-.intg.Qoutdt/.intg.Qindt is calculated so that in accordance with the relation an integration time T corresponding to a rate of leakage to be detected is determined and the integration over time is performed from each of a plurality of time instants shifted from each other by an integral fraction of the integration time T whereby the above-mentioned determination is made each time the integration time T is reached.
摘要翻译:一种用于气体管线的泄漏检测方法和装置,其中在气体管线的所有入口和出口的每一个处即时测量流入速率Qin或流出速率Qout,以及是否存在气体 根据测量值确定泄漏。 测量的流入速率Qin和流出速率Qout分别在给定时间段内积分,并且当积分值的总和SIGMA INTEGRAL Qdt偏离预定值时,确定气体泄漏的发生。 在这种情况下,根据通过这些计算获得的数据,计算积分时间与INTEGRAL Qindt-INTEGRAL Qoutdt / INTEGRAL Qindt的标准偏差之间的关系,使得根据关系式,对应于 确定要检测的泄漏,并且从多个时刻中的每一个通过积分时间T的积分分数来执行随时间的积分,从而每当达到积分时间T时进行上述确定 。