Abstract:
PURPOSE: A sound reproducing device is provided to offer an optimal acoustic environment suitable for a user by controlling the size and phase of a first and a second sound source signals to maximize the ratio of the acoustic potential energy density at a specific location in a listening space to the energy sum of the first and second sound source signal, thereby reproducing sounds having desired spatial characteristics in the listening space. CONSTITUTION: A first and a second speaker playing the role of a sound source are installed in a listening space(a). The listening space is where a listener is located, and a location(b) of the listener is where the listener is currently located in the listening space. The location of an acoustic concentration point(c) is away from the location of the listener, and the number of the acoustic concentration point is one or more than one. A user is able to change the location of the acoustic concentration point by moving the acoustic concentration point on an input unit. A control unit determines a sound source signal maximizing the ratio of the acoustic potential energy density at the acoustic concentration point to the sum of individual sound source signal energy, and enables a sound to be heard as if sounds different from each other are reproduced at two or more specific locations. [Reference numerals] (AA) First speaker; (BB) Second speaker;
Abstract:
PURPOSE: A sound reproducing apparatus is provided to control the size and phase of a first and a second sound resource signal to make a sound pressure level in a specific location within a listening space is higher than the sound pressure level in other location, thereby providing an optimal acoustic environment fitting for a user by playing the acoustic having a desired spatial property within the listening space. CONSTITUTION: In a listening space(a), a first and a second speaker serving as a sound resource are installed. The listening space is a location a listener wants, and a listener location(b) is a location in which the listener is currently located in the listening space. The location of an acoustic concentration point(c) is apart from the listener location, and the number is able to be one or more than two. A user is able to change the location of the acoustic concentration point by moving the acoustic concentration point in an input device. A control device decides a sound resource signal which makes a sound pressure level in the acoustic concentration point higher than the sound pressure level in other areas, so that the sound is heard as the different acoustic is played in more than two specific locations. [Reference numerals] (AA) First speaker; (BB) Second speaker;
Abstract:
본발명은음향재생장치에관한것이다. 본발명에따른음향재생장치는제1, 제2 및제3 음원신호를받아, 청취영역에서의음압레벨이청취영역이아닌영역에서의음압레벨보다높도록제1, 제2 및제3 음원신호의크기와위상을제어하여, 제1, 제2 및제3 제어음원신호를출력하는제어수단; 제1 제어음원신호를받아음향을재생하는제1 스피커; 제2 제어음원신호를받아음향을재생하는제2 스피커; 및제3 제어음원신호를받아음향을재생하는제3 스피커를포함하고, 상기제1, 제2 및제3 스피커는원형으로배열되며, 상기원형으로배열된상기제1, 제2 및제3 스피커의하방에상기청취영역이위치되어있다.
Abstract:
본 발명의 음향 재생 장치는, 제1 및 제2 음원 신호를 받아, 청취 공간 중 특정의 위치에서의 음향포텐셜에너지밀도와 제1 및 제2 음원 신호의 에너지의 합과의 비가 최대가 되도록 제1 및 제2 음원 신호의 크기와 위상을 제어하여, 제1 및 제2 제어 음원 신호를 출력하는 제어 수단; 제1 제어 음원 신호를 받아 음향을 재생하는 제1 스피커; 및 제2 제어 음원 신호를 받아 음향을 재생하는 제2 스피커를 포함하고, 특정의 위치는 청취자로부터 떨어져 있다.
Abstract:
PURPOSE: A noise imaging system of transportation machines, a noise imaging method of transportation machines, a defective position determining system of transportation machines, and a defective position determining method thereof are provided to apply the system and the method to an actual industrial site by determining defective positions of the transportation machines by removing an influence of a measurement noise. CONSTITUTION: A microphone array(100) is separated from a bottom surface of a transportation machine. The microphone array measures the sound pressure of an impact noise discharged from the transportation machine. A signal processing unit(400) obtains a noise map without a noise. Photoelectric sensors(200a,200b) are installed in a random position of a path for the transportation machine. The photoelectric sensors measure a relative position of the microphone array by measuring a moving speed and a position. A sound-absorbing material is installed on a surface on which the microphone array is installed.
Abstract:
PURPOSE: A sound reproducing apparatus is provided to play a sound having a desired special property in a listening space, and provide an optimal listening space fitting to a user. CONSTITUTION: A first speaker and a second speaker which serve as a sound source are installed at a listening space(a). Moreover, the listening space(a) is where a listener is located and the listener location(b) is where the listener exists in the listening space(a). The location of an acoustic concentration point(c) is apart from the listener location(b) and the number is able to be one or more than two. A user is able to move the acoustic concentration point(c) on an input unit and change the location of the acoustic concentration point(c). A control unit controls the size and phase of a first and a second sound source signal, to sound like two different acoustics are played in more than two specific locations. [Reference numerals] (AA) First speaker; (BB) Second speaker;
Abstract:
An apparatus for reproducing sound from original source signals has a control device, a first speaker, and a second speaker. The control device receives first and second original source signals, and controls magnitudes and phases of the received first and second original source signals so that a sound pressure level in a pre-determined zone is higher than a sound pressure level in a zone other than the pre-determined zone, and outputs first and second controlled source signals. The first speaker receives the first controlled source signal and reproduces sound. The second speaker receives the second controlled source signal and reproduces sound. The apparatus according provides a sound environment in which only the person using the sound system enjoys the sound.
Abstract:
본 발명은 음향 재생 장치에 관한 것이다. 본 발명의 음향 재생 장치는 제어 수단과 제1 스피커와 제2 스피커를 포함한다. 제어 수단은 제1 및 제2 음원 신호를 받아 청취 영역에서의 음압 레벨이 청취 영역이 아닌 영역에서의 음압 레벨보다 높도록 제1 및 제2 음원 신호의 크기와 위상을 제어하여, 제1 및 제2 제어 음원 신호를 출력한다. 제1 스피커는 제1 제어 음원 신호를 받아 음향을 재생한다. 제2 스피커는 제2 제어 음원 신호를 받아 음향을 재생한다. 본 발명의 음향 재생 장치는 청취자가 위치하는 영역, 즉 청취 영역에서의 음압 레벨을 청취자가 위치하지 않는 영역, 즉, 청취 영역이 아닌 영역에서의 음압 레벨보다 크게 할 수 있고, 이에 의하여, 그 음향 재생 장치를 이용하는 사람만이 음향을 즐기는 음향 환경을 제공할 수 있다. 음향 재생 장치, 음원 신호, 음압 레벨
Abstract:
A sound system, a sound reproducing device, a sound reproducing method, a monitor with a speaker, and a portable phone with the speaker are provided to maximize a level of the sound pressure in a listening area by maximally controlling the size of the level of the sound pressure corresponding to the sound brightness. A sound system includes a sound source unit(100), a sensor, a signal generator(300), and a signal analyzer(400). The sound source unit is comprised of first, second, and third speakers, and a multi channel audio amplifier(120). The first to third speakers are successively arranged. The controller controls the size and the phase of the first sound source signal and the second sound source so that a ratio of the sum of the energy of the first and second sound source signals and the space average sound energy signal is maximum.