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公开(公告)号：US20220101867A1
公开(公告)日：2022-03-31
申请号：US17549413
申请日：2021-12-13
发明人： Alexander ADAMI , Christian BORSS , Sascha DICK , Christian ERTEL , Simone NEUKAM , Juergen HERRE , Johannes HILPERT , Andreas HOELZER , Michael KRATSCHMER , Fabian KUECH , Achim KUNTZ , Adrian MURTAZA , Jan PLOGSTIES , Andreas SILZLE , Hanne STENZEL
IPC分类号： G10L19/20 , G10L19/008 , H04S3/00 , G10L19/18 , G10L19/22 , G10L19/028
摘要： Audio encoder for encoding audio input data to obtain audio output data includes an input interface for receiving a plurality of audio channels, a plurality of audio objects and metadata related to one or more of the plurality of audio objects; a mixer for mixing the plurality of objects and the plurality of channels to obtain a plurality of pre-mixed channels, each pre-mixed channel including audio data of a channel and audio data of at least one object; a core encoder for core encoding core encoder input data; and a metadata compressor for compressing the metadata related to the one or more of the plurality of audio objects, wherein the audio encoder is configured to operate in at least one mode of the group of two modes.
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公开(公告)号：US20210136511A1
公开(公告)日：2021-05-06
申请号：US17145758
申请日：2021-01-11
发明人： Christian BORSS , Christian ERTEL , Johannes HILPERT , Achim KUNTZ , Michael FISCHER , Florian SCHUH , Bernhard GRILL
IPC分类号： H04S7/00 , H04S3/02 , G10L19/008 , G10L19/20
摘要： An apparatus for generating a plurality of audio channels for a first speaker setup is characterized by an imaginary speaker determiner, an energy distribution calculator, a processor and a renderer. The imaginary speaker determiner is configured to determine a position of an imaginary speaker not contained in the first speaker setup to obtain a second speaker setup containing the imaginary speaker. The energy distribution calculator is configured to calculate an energy distribution from the imaginary speaker to the other speakers in the second speaker setup. The processor is configured to repeat the energy distribution to obtain a downmix information for a downmix from the second speaker setup to the first speaker setup. The renderer is configured to generate the plurality of audio channels using the downmix information.
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公开(公告)号：US20160316309A1
公开(公告)日：2016-10-27
申请号：US15202443
申请日：2016-07-05
发明人： Christian BORSS , Christian ERTEL , Johannes HILPERT , Achim KUNTZ , Michael FISCHER , Florian SCHUH , Bernhard GRILL
IPC分类号： H04S7/00 , G10L19/20 , G10L19/008
CPC分类号： H04S7/308 , G10L19/008 , G10L19/20 , H04S3/02 , H04S7/30 , H04S2400/01 , H04S2400/03 , H04S2400/11
摘要： An apparatus for generating a plurality of audio channels for a first speaker setup is characterized by an imaginary speaker determiner, an energy distribution calculator, a processor and a renderer. The imaginary speaker determiner is configured to determine a position of an imaginary speaker not contained in the first speaker setup to obtain a second speaker setup containing the imaginary speaker. The energy distribution calculator is configured to calculate an energy distribution from the imaginary speaker to the other speakers in the second speaker setup. The processor is configured to repeat the energy distribution to obtain a downmix information for a downmix from the second speaker setup to the first speaker setup. The renderer is configured to generate the plurality of audio channels using the downmix information.
摘要翻译： 用于产生用于第一扬声器设置的多个音频通道的装置的特征在于虚拟扬声器确定器，能量分布计算器，处理器和渲染器。 虚拟扬声器确定器被配置为确定不包含在第一扬声器设置中的虚拟扬声器的位置，以获得包含虚拟扬声器的第二扬声器设置。 能量分布计算器被配置为在第二扬声器设置中计算从虚拟扬声器到其它扬声器的能量分布。 处理器被配置为重复能量分布以获得用于从第二扬声器设置到第一扬声器设置的下混的下混信息。 渲染器被配置为使用缩混信息来生成多个音频频道。
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公开(公告)号：US20220329958A1
公开(公告)日：2022-10-13
申请号：US17728804
申请日：2022-04-25
IPC分类号： H04S5/00 , G10L19/008 , H04S3/00 , H04S3/02
摘要： An apparatus for generating one or more audio channels. The apparatus comprises a metadata decoder for generating one or more reconstructed metadata signals from one or more processed metadata signals depending on a control signal, wherein each of the one or more reconstructed metadata signals indicates information associated with an audio signal of one or more audio signals, wherein the metadata decoder is configured to generate the one or more reconstructed metadata signals by determining a plurality of reconstructed metadata samples for each of the one or more reconstructed metadata signals. Moreover, the apparatus comprises an audio channel generator for generating the one or more audio channels depending on the one or more audio signals and depending on the one or more reconstructed metadata signals.
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公开(公告)号：US20220279302A1
公开(公告)日：2022-09-01
申请号：US17749922
申请日：2022-05-20
摘要： An audio object renderer for determining loudspeaker gains describing gains for an inclusion of one or more audio object signals into a plurality of loudspeaker signals on the basis of an object position information and an object feature information or a spread information is configured to obtain panned object loudspeaker gains using a point source panning of the audio object. The audio object renderer is configured to obtain spread object loudspeaker gains considering the object position information and the object feature information or spread information. The audio object renderer is configured to combine the panned object loudspeaker gains and the spread object loudspeaker gains in such a manner, that there is a contribution of the panned object loudspeaker gains, in order to obtain combined loudspeaker gains. Methods and computer programs are also described.
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公开(公告)号：US20200275229A1
公开(公告)日：2020-08-27
申请号：US16810538
申请日：2020-03-05
IPC分类号： H04S5/00 , G10L19/008 , H04S3/00 , H04S3/02
摘要： An apparatus for generating one or more audio channels is provided. The apparatus comprises a metadata decoder for generating one or more reconstructed metadata signals from one or more processed metadata signals depending on a control signal, wherein each of the one or more reconstructed metadata signals indicates information associated with an audio object signal of one or more audio object signals, wherein the metadata decoder is configured to generate the one or more reconstructed metadata signals by determining a plurality of reconstructed metadata samples for each of the one or more reconstructed metadata signals. The apparatus comprises an audio channel generator for generating the one or more audio channels depending on the one or more audio object signals and depending on the one or more reconstructed metadata signals. The metadata decoder is configured to receive a plurality of processed metadata samples of each of the one or more processed metadata signals. The metadata decoder is configured to receive the control signal.
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7.发明申请公开(公告)号：US20190272833A1
公开(公告)日：2019-09-05
申请号：US16395933
申请日：2019-04-26
发明人： Christian BORSS , Bernd EDLER , Guillaume FUCHS , Jan BUETHE , Sascha DISCH , Florin GHIDO , Stefan BAYER , Markus MULTRUS
IPC分类号： G10L19/008 , H04S3/00
摘要： A downmixer for downmixing at least two channels of a multichannel signal having the two or more channels includes: a processor for calculating a partial downmix signal from the at least two channels; a complementary signal calculator for calculating a complementary signal from the multichannel signal, the complementary signal being different from the partial downmix signal; and an adder for adding the partial downmix signal and the complementary signal to obtain a downmix signal of the multichannel signal.
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公开(公告)号：US20240236607A1
公开(公告)日：2024-07-11
申请号：US18146037
申请日：2022-12-23
CPC分类号： H04S7/305 , G06T17/20 , H04S7/302 , H04S2400/11
摘要： An apparatus according to an embodiment. The apparatus comprises a receiving interface for receiving a plurality of spatial object representations of a plurality of spatial objects, wherein each of the plurality of spatial object representations is represented in at least one of two or more spatial representation domains. Moreover, the apparatus comprises a converter for converting one or more of the plurality of spatial object representations from a first one of the two or more spatial representation domains into a second one of the two or more spatial representation domains.
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公开(公告)号：US20190222949A1
公开(公告)日：2019-07-18
申请号：US16360776
申请日：2019-03-21
IPC分类号： H04S5/00 , H04S3/02 , H04S3/00 , G10L19/008
CPC分类号： H04S5/005 , G10L19/008 , H04S3/008 , H04S3/02 , H04S2400/03 , H04S2400/11 , H04S2420/03
摘要： An apparatus for generating one or more audio channels is provided. The apparatus comprises a metadata decoder for generating one or more reconstructed metadata signals from one or more processed metadata signals depending on a control signal, wherein each of the one or more reconstructed metadata signals indicates information associated with an audio object signal of one or more audio object signals, wherein the metadata decoder is configured to generate the one or more reconstructed metadata signals by determining a plurality of reconstructed metadata samples for each of the one or more reconstructed metadata signals. The apparatus comprises an audio channel generator for generating the one or more audio channels depending on the one or more audio object signals and depending on the one or more reconstructed metadata signals. The metadata decoder is configured to receive a plurality of processed metadata samples of each of the one or more processed metadata signals. The metadata decoder is configured to receive the control signal.
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公开(公告)号：US20180035202A1
公开(公告)日：2018-02-01
申请号：US15727783
申请日：2017-10-09
摘要： A calculation unit for a sound reproduction system includes an input unit, a processor and at least three outputs for controlling at least three transducers of an array. The input unit has the purpose to receive an audio stream to be reproduced using the array, wherein the audio stream has a frequency range. The processor is configured to calculate three individual audio signals to be output using the at least three outputs, such that a first acoustic differential having a second or higher order is generated using the array.
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