Abstract: An apparatus for generating one or more audio output signals from one or more encoded audio signals according to an embodiment is provided. The apparatus has an input interface for receiving the one or more encoded audio signals and for receiving additional audio information data. Furthermore, the apparatus has a signal generator for generating the one or more audio output signals depending on the encoded audio signals and depending on second additional audio information. The signal generator is configured to obtain the second additional audio information using the additional audio information data and using first additional audio information, if the additional audio information data exhibits a redundancy state. Moreover, the signal generator is configured to obtain the second additional audio information using the additional audio information data without using the first additional audio information, if the additional audio information data exhibits a non-redundancy state.

Abstract: An apparatus for generating one or more audio output signals from one or more encoded audio signals according to an embodiment is provided. The apparatus comprises at least one entropy decoding module for decoding encoded additional audio information, when the encoded additional audio information is entropy-encoded, to obtain decoded additional audio information. Moreover, the apparatus comprises a signal processor for generating the one or more audio output signals depending on the one or more encoded audio signals and depending on the decoded additional audio information.

Abstract: The present application concerns early reflection processing concepts for auralization. Embodiments relate to apparatuses and methods for sound rendering considering early reflections and to apparatuses and methods for determining an early reflection pattern.

Abstract: An apparatus for rendering a sound scene having reflection objects and a sound source at a sound source position, includes: a geometry data provider for providing an analysis of the reflection objects of the sound scene to determine a reflection object represented by a first polygon and a second adjacent polygon having associated a first image source position for the first polygon and a second image source position for the second polygon, wherein the first and second image source positions result in a sequence including a first visible zone related to the first image source position, an invisible zone and a second visible zone related to the second image source position; an image source position generator for generating an additional image source position such that the additional image source position is placed between the first image source position and the second image source position; and a sound renderer for rendering the sound source at the sound source position and, additionally for rendering the sound

Abstract: The present application concerns early reflection processing concepts for auralization. Embodiments relate to apparatuses and methods for sound rendering considering early reflections and to apparatuses and methods for determining an early reflection pattern.

Abstract: A sound processing apparatus comprises a panner for spatial positioning of a plurality of input signals and for combining them into at least two spatial signals. The sound processing apparatus comprises a dispersion filter stage for receiving the spatial signals and for dispersion filtering the spatial signals to obtain a set of filtered spatial signals. The sound processing apparatus comprises an interface for providing a number of output signals, based on the filtered spatial signals.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A more efficient rendering of audio objects, which allows 3D panning, is achieved by performing the panning into two stages, namely at least one horizontal in-layer panning leading to a first virtual (speaker) position and a second virtual or real (speaker) position, which is vertically offset, and another panning vertically between the two positions. Although acting in such a manner seems to increase the computational complexity, this staged processing increases, in fact, the stability of the rendering and the location of the intended virtual position. Moreover, the staged processing, enables to perform, according to an embodiment, the panning by use of amplitude panning gains only, i.e. phase processing is not necessary, thereby rendering the computational complexity low. Even further, the rendering is flexible with respect to applicability to a variety of loudspeaker setups.

Abstract: An apparatus for generating a plurality of audio channels for a speaker setup, comprises a processor repeating an energy distribution from a speaker not contained in the speaker setup to the speakers in the speaker setup to acquire a downmix information for a downmix to the speaker setup; and a renderer for generating the plurality of audio channels using the downmix information.

Abstract: An apparatus for combining three or more audio signals is described. The apparatus includes a segmentation block for segmenting each audio signal into segments, a weight determination block, which is configured to determine a weight value for each of the temporally weighted audio signal segments, a combination block for combining the temporally weighted audio signal segments of each audio signal, and a synthesis block for generating an output audio signal. A method for combining three or more audio signals and a computer program product are also described.

Abstract: 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.

Abstract: An apparatus for rendering a sound scene having reflection objects and a sound source at a sound source position, includes: a geometry data provider for providing an analysis of the reflection objects of the sound scene to determine a reflection object represented by a first polygon and a second adjacent polygon having associated a first image source position for the first polygon and a second image source position for the second polygon, wherein the first and second image source positions result in a sequence including a first visible zone related to the first image source position, an invisible zone and a second visible zone related to the second image source position; an image source position generator for generating an additional image source position such that the additional image source position is placed between the first image source position and the second image source position; and a sound renderer for rendering the sound source at the sound source position and, additionally for rendering the sound

Abstract: An apparatus for generating a plurality of audio channels for a speaker setup, comprises a processor repeating an energy distribution from a speaker not contained in the speaker setup to the speakers in the speaker setup to acquire a downmix information for a downmix to the speaker setup; and a renderer for generating the plurality of audio channels using the downmix information.

Abstract: 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.

Abstract: An apparatus for generating one or more audio channels is provided. The apparatus includes a metadata decoder for receiving one or more compressed metadata signals. Each of the one or more compressed metadata signals includes a plurality of first metadata samples. The metadata decoder is configured to generate one or more reconstructed metadata signals and to generate each of the second metadata samples of each reconstructed metadata signal of the one or more reconstructed metadata signals depending on at least two of the first metadata samples of the reconstructed metadata signal. The apparatus includes 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. An apparatus for generating encoded audio information including one or more encoded audio signals and one or more compressed metadata signals is provided.

Abstract: 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.

Abstract: 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.

Abstract: 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.