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公开(公告)号：EP4443905A2
公开(公告)日：2024-10-09
申请号：EP24168017.2
申请日：2024-04-02
发明人： Ito, Ryo
IPC分类号： H04R5/02
CPC分类号： H04R5/023 , H04R2499/1320130101 , H04R3/14 , B60N2/879
摘要： An audio output device for outputting a sound corresponding to a first audio signal toward a first user in front of a second user and a sound corresponding to a second audio signal toward the second user in back of the first user is provided. The audio output device includes a first speaker configured to output a sound having a low-frequency component of the first audio signal toward the first user, and a sound having a high-frequency component of the second audio signal toward the second user; and a second speaker configured to output a sound having low-frequency and middle-frequency components of the second audio signal toward the second user. The first speaker is disposed in a vicinity of the first user, and the second speaker is disposed in a vicinity of the second user.
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92.发明公开
公开(公告)号：EP4413744A1
公开(公告)日：2024-08-14
申请号：EP22793574.9
申请日：2022-10-04
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公开(公告)号：EP4356624A1
公开(公告)日：2024-04-24
申请号：EP21734087.6
申请日：2021-06-15
申请人： Flexound Systems OY
发明人： IMMONEN, Tommi , LINJAMA, Jukka , KIVIVIRTA, Aki , VÄLIMÄKI, Vesa
IPC分类号： H04R3/14
CPC分类号： H04R3/14 , H04R2400/0320130101 , H04R2430/0120130101
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公开(公告)号：EP3152920B1
公开(公告)日：2018-11-28
申请号：EP15730000.5
申请日：2015-06-02
CPC分类号： H04S7/305 , H04R1/26 , H04R1/288 , H04R3/12 , H04R3/14 , H04R5/02 , H04R5/04 , H04S7/00 , H04S7/30 , H04S7/308 , H04S2400/01 , H04S2400/11 , H04S2420/03
摘要： Embodiments are directed to upward-firing speakers that reflect sound off a ceiling to a listening location at a distance from a speaker. The reflected sound provides height cues to reproduce audio objects that have overhead audio components. A virtual height filter based on a directional hearing model is applied to the upward-firing driver signal to improve the perception of height for audio signals transmitted by the virtual height speaker to provide optimum reproduction of the overhead reflected sound. The upward firing driver is tilted at an inclination angle of approximately 20 degrees to the horizontal axis of the speaker and separate height and direct terminal connections are provided to interface to an adaptive audio rendering system.
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公开(公告)号：EP3355590A1
公开(公告)日：2018-08-01
申请号：EP17153225.2
申请日：2017-01-26
CPC分类号： H04R9/046 , H04R1/24 , H04R3/14 , H04R7/12 , H04R2209/041 , H04R2307/207
摘要： The present invention provides a loudspeaker (10) at least comprising a field coil (4), a plurality of voice coils (6a, 6b, 6c) having different numbers of windings from each other, and a diaphragm (8) having a mechanically adjustable size. The invention also provides an apparatus at least comprising such a loudspeaker, as well as a variable voltage and/or current source (24) connected to the field coil (4), a voice coil drive circuit (26) switchably connectable to at least one of the plurality of voice coils (6a, 6b, 6c), and a mechanical actuator (28) connected to the diaphragm (8) for adjusting its size. The apparatus may further comprise a controller (30, 30a, 30b) of the variable voltage and/or current source (24), of the voice coil drive circuit (26) and of the mechanical actuator (28). Such a controller (30) is configured, in response to a frequency of an input electronic audio signal, to vary the voltage and/or current supplied to the field coil (4) by the variable voltage and/or current source (24) in order to vary the strength of a magnetic field produced by the field coil (4), to select at least one of the plurality of voice coils (6a, 6b, 6c) to be driven by the voice coil drive circuit (26), and/or to control the mechanical actuator (28) to adjust the size of the diaphragm (8). The invention also provides a method of operating a loudspeaker in such a manner. Thus the loudspeaker (10) is effectively an adaptive loudspeaker, which can become any one of a woofer, a mid-range speaker or a tweeter, according to how it is adjusted and controlled. This obviates the need to provide a separate woofer, mid-range speaker and tweeter to cover the whole range of normal human hearing.
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公开(公告)号：EP3333850A4
公开(公告)日：2018-06-27
申请号：EP16855097
申请日：2016-09-29
发明人： SUZUKI RYOJI , OHASHI HIROMASA , TANAKA NAOYA
IPC分类号： G10L21/0272 , G10L21/0208 , H04R3/02
CPC分类号： G10L21/028 , G10L21/0272 , H04R3/00 , H04R3/02 , H04R3/14 , H04R2499/13
摘要： A sound source separation device includes a first microphone that picks up a first voice, a second microphone that picks up a second voice, a first crosstalk canceller that removes, from a voice signal of the first microphone, first crosstalk caused when the second voice is picked up by the first microphone, and a second crosstalk canceller that removes, from a voice signal of the second microphone, second crosstalk caused when the first voice is picked up by the second microphone. The first crosstalk canceller uses a voice signal in which the second crosstalk is removed from the voice signal of the second microphone to estimate and calculate a first interference signal indicative of a degree of the first crosstalk, and to remove the calculated first interference signal from the voice signal of the first microphone. The second crosstalk canceller uses a voice signal in which the first crosstalk is removed from the voice signal of the first microphone to estimate and calculate a second interference signal indicative of a degree of the second crosstalk, and to remove the calculated second interference signal from the voice signal of the second microphone.
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公开(公告)号：EP3214854A4
公开(公告)日：2018-05-23
申请号：EP15864704
申请日：2015-12-01
申请人： YAMAHA CORP
发明人： KATAYAMA MASAKI
CPC分类号： H04S7/303 , H04R1/025 , H04R1/26 , H04R1/403 , H04R3/00 , H04R3/04 , H04R3/14 , H04R5/02 , H04R5/04 , H04R2430/01
摘要： Provided is a speaker device, which includes speaker units having different diameters and sound emission directions, and which is capable of suppressing variations in sound quality at a listening position, which are caused by changing an orientation in which the speaker device is installed. A speaker device (10) has first and second speaker units (23L, 23R, 24L, 24R), which have different diameters and sound emission directions, mounted thereto. The speaker device (10) is installable in a state of being placed on a rack with the first speaker units (23L, 23R) facing the listening position, and in a state of being hung on a wall with the second speaker units (24L, 24R) facing the listening position. A controller (41) is configured to control, depending on the orientation in which the device is installed, an equalizer correction unit (47) to correct frequency characteristics of acoustic signals input to the first and second speaker units (23L, 23R, 24L, 24R) so that sound quality is not varied at the listening position depending on the difference in diameter and sound emission direction.
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公开(公告)号：EP3205113A4
公开(公告)日：2018-05-16
申请号：EP14903596
申请日：2014-10-06
申请人： GENELEC OY
CPC分类号： H04R1/345 , H04R1/023 , H04R1/025 , H04R1/24 , H04R1/2826 , H04R1/2888 , H04R1/323 , H04R3/14
摘要： The present invention relates to a loudspeaker including an enclosure having front portion, side portions and back portion defining an inner volume, the front portion is formed as a waveguide surface and includes at least one driver in the center of the waveguide surface and is capable to radiate the main acoustic power of the loudspeaker to ambient volume in direction of first acoustic axis, and an additional driver attached to the enclosure. In accordance with the invention the additional driver is attached inside the enclosure such that a sub volume is formed inside the inner volume, the sub volume limited by the driver, spacers between the driver and the front portion, and the front portion of the enclosure, and at least one port is adapted to open from the sub volume to ambient volume either to side portion or back portion of the enclosure.
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公开(公告)号：EP1507438B1
公开(公告)日：2018-03-28
申请号：EP04017985.5
申请日：2004-07-29
发明人： Saiki, Shuji , Usuki, Sawako
CPC分类号： H04R7/04 , H04R1/2834 , H04R3/14 , H04R2499/11 , H04R2499/15
摘要： The present invention is directed to a sound reproduction device which includes an LCD (20), which is an exemplary front panel, a case (22), and an electromechanical acoustic transducer (23). TheLCD (20) isoperabletoperformapredeterminedoperation in response to an electrical signal applied thereto. A space (24) for sound emission is formed between the case (22) and the LCD (20). The electromechanical acoustic transducer (23) is connected to the case (22), and emits sound to the space (24). If the electromechanical acoustic transducer (23) emits the sound to the space (24), energy of the emitted sound causes the LCD (20) to vibrate and thereby to externally output the sound.
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公开(公告)号：EP3284268A1
公开(公告)日：2018-02-21
申请号：EP16780781.7
申请日：2016-04-14
发明人： ARNESON, Jon M. , RAWKS, Katrin , ESPINOSA, Pablo
CPC分类号： H04R1/24 , H04R1/26 , H04R1/2865 , H04R1/30 , H04R1/403 , H04R3/14 , H04R2203/12
摘要： An arrayable loudspeaker (11) has at least one high frequency driver (39) mounted to a horn (37) and at least one pair of low frequency drivers (41) configured behind and in a closely spaced relationship to the horn to form low frequency side chambers (71) between the drivers and the horn from which acoustic energy produced by the low frequency drivers can propagate. Low frequency exit channels (77) above and below the horn are coupled to the low frequency side chambers (71). The configuration of the horn and low frequency drivers and the low frequency side chambers and low frequency exit channels is such that acoustical outputs of all drivers radiate coaxially from the loudspeaker with substantially constant wide beamwidth in the non-arraying plane. Signal processing can be added to enhance beamwidth control critical frequency ranges above crossover.
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