Abstract: A vehicle audio video navigation (AVN) system may be provided that includes: a plurality of source providers which receives a sound source; a user operation unit which selects at least one of a plurality of the sound sources input from the plurality of the source providers and selects a focusing zone of the sound source; a processor which generates a sound source signal for focusing an output of the selected sound source on the focusing zone; and a multi-channel amplifier which outputs the sound source signal. As a result, the focusing zone of each sound output within a vehicle can be individually controlled. Particularly, the focusing zone of each sound can be easily selected and controlled without changing the location of the speaker within the vehicle. Also, the sound source and the focusing zone within the vehicle can be selected and controlled only by adding an external processor without replacing the AVN device provided in the vehicle.

Abstract: A vehicle audio video navigation (AVN) system may be provided that includes: a plurality of source providers which receives a sound source; a user operation unit which selects at least one of a plurality of the sound sources input from the plurality of the source providers and selects a focusing zone of the sound source; a processor which generates a sound source signal for focusing an output of the selected sound source on the focusing zone; and a multi-channel amplifier which outputs the sound source signal. As a result, the focusing zone of each sound output within a vehicle can be individually controlled. Particularly, the focusing zone of each sound can be easily selected and controlled without changing the location of the speaker within the vehicle. Also, the sound source and the focusing zone within the vehicle can be selected and controlled only by adding an external processor without replacing the AVN device provided in the vehicle.

Abstract: An in-car personalized sound field forming device which communicates with a device for providing a sound source according to an exemplary embodiment of the present invention includes: a storage unit configured to store a filter coefficient for converting the sound source so that a sound is concentrated in a predetermined focusing area in a vehicle; a communication unit configured to receive vehicle driving state information in the vehicle; and a control unit configured to update the filtering coefficient according to the vehicle driving state information received from the communication unit and control a volume adjustment range of the sound source so that the sound is reproduced in the focusing area.

Abstract: A sound source reproducing device which communicates with an electronic device providing images and original sound may be provided. The sound source reproducing device includes: an interface which receives position information of at least one virtual object included in the image and the original sound from the electronic device; and a controller which generates virtual speaker position information corresponding to the position information of the at least one virtual object received from the interface, and converts the original sound received from the interface into a sound source signal for a plurality of speakers on the basis of the virtual speaker position information.

Abstract: A sound source reproducing device which communicates with an electronic device providing images and original sound may be provided. The sound source reproducing device includes: an interface which receives position information of at least one virtual object included in the image and the original sound from the electronic device; and a controller which generates virtual speaker position information corresponding to the position information of the at least one virtual object received from the interface, and converts the original sound received from the interface into a sound source signal for a plurality of speakers on the basis of the virtual speaker position information.

Abstract: Provided are a forming method for a personalized sound zone and a forming system thereof. Using The forming method for a personalized sound zone, by calculating a control filter reflecting the characteristics of individual speakers, a numerical error and resultant occurrence of noise may be reduced when the filter is calculated, and an effective personalized sound zone may be formed only with directivity without a control filter at a frequency band in which sound between seats are separable according to distances.

Abstract: An acoustic spatial adjustment system may be provided that includes: a wireless communication module which receives a voice signal from a mobile terminal connected thereto by wireless communication; an adjustment controller which filters the voice signal in order to generate a sound source signal for focusing an output of the voice signal transmitted from the wireless communication module on a bright zone (BZ); an amplifier which divides the sound source signal transmitted from the adjustment controller into multi-channels and amplifies; and a plurality of speakers which output the sound source signal transmitted from the amplifier. As a result, the sound can be focused on a specific zone in the vehicle by using existing mounted speakers in the vehicle or by installing only additional speakers for performance improvement. Also, the individually distinguished sound (audio signal of a stereo system, CD, DVD, etc., a telephone voice signal connected by Bluetooth, etc.

Abstract: An acoustic spatial adjustment system may be provided that includes: a wireless communication module which receives a voice signal from a mobile terminal connected thereto by wireless communication; an adjustment controller which filters the voice signal in order to generate a sound source signal for focusing an output of the voice signal transmitted from the wireless communication module on a bright zone (BZ); an amplifier which divides the sound source signal transmitted from the adjustment controller into multi-channels and amplifies; and a plurality of speakers which output the sound source signal transmitted from the amplifier. As a result, the sound can be focused on a specific zone in the vehicle by using existing mounted speakers in the vehicle or by installing only additional speakers for performance improvement. Also, the individually distinguished sound (audio signal of a stereo system, CD, DVD, etc., a telephone voice signal connected by Bluetooth, etc.

Abstract: An apparatus for stimulating cell includes a cell culture chamber, a control device, and first and second exciters. The cell culture chamber includes cell and culture medium. The control device receives first and second exciting signals, and controls magnitudes and phases of the received first and second exciting signals so that a sound pressure level in a focused zone is higher than a sound pressure level in a zone other than the focused zone, and outputs first and second controlled exciting signals. The first and second exciters receive the first and second controlled exciting signals and excite the cell culture chamber.

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: An apparatus for stimulating cell includes a cell culture chamber, a control device, and first and second exciters. The cell culture chamber includes cell and culture medium. The control device receives first and second exciting signals, and controls magnitudes and phases of the received first and second exciting signals so that a sound pressure level in a focused zone is higher than a sound pressure level in a zone other than the focused zone, and outputs first and second controlled exciting signals. The first and second exciters receive the first and second controlled exciting signals and excite the cell culture chamber.

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: The present invention relates to an apparatus for reproducing sound, a method for reproducing sound, a monitor with speakers, and a mobile phone with speakers. An apparatus according to the present invention is an apparatus for reproducing sound from original source signals, and comprises a control means, a first speaker, and a second speaker. The control means 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 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 to the present invention can provide the sound environment in which only the person using the sound system enjoys the sound.

Abstract: The present invention relates generally to a method of visualizing the sound fields of sound sources using acoustic holography, which discriminates the sound fields of individual sound sources having the same frequency component and visualizes the sound fields thereof. In the method, sound pressures are calculated on a sound source plane using sound pressures measured on a hologram plane. A single sound source having a position of a maximum sound pressure on the sound source plane is extracted, and a value of the sound pressure at the position is evaluated as a signal coherent to the sound source. A sound field of the extracted sound source is obtained using the coherent signal. The sound field is eliminated from sound fields of all sound sources, and it is determined whether any remaining sound field exists. The process returns to the sound field obtaining operation if any remaining sound field exists.

Abstract: The present invention relates generally to a method of visualizing the sound fields of sound sources using acoustic holography, and more particularly to a method, which discriminates the sound fields of individual sound sources having the same frequency component and visualizes the sound fields thereof.