Abstract: An apparatus for spatial audio signal decoding including at least one processor and at least one memory including a computer program code configured to cause the apparatus at least to: receive at least one associated audio signal, the at least one associated audio signal based on a spatial audio signal; spatial metadata associated with the at least one associated audio signal, the spatial metadata including at least one parameter representing an ambiance energy distribution of the spatial audio signal and at least one directional parameter representing directional information of the spatial audio signal; synthesize from the at least one associated audio signal at least one output audio signal based on the at least one directional parameter and the least one parameter, wherein the at least one parameter controls ambiance energy distribution of the at least one output signal.

Abstract: An apparatus including means configured to: obtain at least one audio stream, wherein the at least one audio stream includes one or more transport audio signals, wherein the one or more transport audio signals is a defined type of transport audio signal; and convert the one or more transport audio signals to at least one or more further transport audio signals, the one or more further transport audio signals being a further defined type of transport audio signal.

Abstract: An apparatus including a predetermined shape, the apparatus including at least three microphones, wherein at least one pair from the at least three microphones comprises including two microphones which are separated by a shorter distance of the predetermined shape than at least one other microphone pair of the predetermined shape; and a processor configured to: receive at least three microphone audio signals from the at least three microphones; analyse at least the microphone audio signals from the two microphones to determine a directional ambiguity decision; and analyse the microphone audio signals from at least one of the other microphone pairs to determine at least one sound characteristic other than the direction ambiguity.

Abstract: An apparatus for generating an audio output signal having two or more audio output channels from an audio input signal having two or more audio input channels includes a provider and a signal processor. The provider is adapted to provide first covariance properties of the audio input signal. The signal processor is adapted to generate the audio output signal by applying a mixing rule on at least two of the two or more audio input channels. The signal processor is configured to determine the mixing rule based on the first covariance properties of the audio input signal and based on second covariance properties of the audio output signal, the second covariance properties being different from the first covariance properties.

Abstract: An apparatus for generating an audio output signal is provided. The audio output signal has two or more audio output channels and is generated from an audio input signal having two or more audio input channels. The apparatus includes a provider and a signal processor. The provider is adapted to provide first covariance properties of the audio input signal. The signal processor is adapted to generate the audio output signal by applying a mixing rule on at least two of the two or more audio input channels. The signal processor is configured to determine the mixing rule based on the first covariance properties of the audio input signal and based on second covariance properties of the audio output signal, the second covariance properties being different from the first covariance properties.

Abstract: Examples of the disclosure relate to a method, apparatus and computer program, the method including: obtaining audio signals wherein the audio signals represent spatial sound and can be used to render spatial audio using linear methods; obtaining spatial metadata corresponding to the spatial sound represented by the audio signals; and associating the spatial metadata with the obtained audio signals so that in a first rendering context the obtained audio signals can be rendered without using the spatial metadata and in a second rendering context the obtained audio signals can be rendered with using the spatial metadata.

Abstract: A method for spatial audio signal processing, comprising: including determining at least one direction parameter for at least one frequency band based on microphone signals received from a microphone array; processing the determined at least one direction parameter to determine at least one distance parameter for the at least one frequency band; and enabling an output and/or store of the at least one distance parameter, at least one audio signal, and the at least one direction parameter.

Abstract: An apparatus including a predetermined shape, the apparatus including at least three microphones, wherein at least one pair from the at least three microphones comprises including two microphones which are separated by a shorter distance of the predetermined shape than at least one other microphone pair of the predetermined shape; and a processor configured to: receive at least three microphone audio signals from the at least three microphones; analyse at least the microphone audio signals from the two microphones to determine a directional ambiguity decision; and analyse the microphone audio signals from at least one of the other microphone pairs to determine at least one sound characteristic other than the direction ambiguity.

Abstract: An apparatus for generating an audio output signal is provided. The audio output signal has two or more audio output channels and is generated from an audio input signal having two or more audio input channels. The apparatus includes a provider and a signal processor. The provider is adapted to provide first covariance properties of the audio input signal. The signal processor is adapted to generate the audio output signal by applying a mixing rule on at least two of the two or more audio input channels. The signal processor is configured to determine the mixing rule based on the first covariance properties of the audio input signal and based on second covariance properties of the audio output signal, the second covariance properties being different from the first covariance properties.

Abstract: An audio signal processing decoder having at least one frequency band and being configured for processing an input audio signal having a plurality of input channels in the at least one frequency band, wherein the decoder is configured to analyze the input audio signal, wherein inter-channel dependencies between the input channels are identified; and to align the phases of the input channels based on the identified inter-channel dependencies, wherein the phases of input channels are the more aligned with respect to each other the higher their inter-channel dependency is; and to downmix the aligned input audio signal to an output audio signal having a lesser number of output channels than the number of the input channels.

Abstract: An apparatus for generating an audio output signal is provided. The audio output signal has two or more audio output channels and is generated from an audio input signal having two or more audio input channels. The apparatus includes a provider and a signal processor. The provider is adapted to provide first covariance properties of the audio input signal. The signal processor is adapted to generate the audio output signal by applying a mixing rule on at least two of the two or more audio input channels. The signal processor is configured to determine the mixing rule based on the first covariance properties of the audio input signal and based on second covariance properties of the audio output signal, the second covariance properties being different from the first covariance properties.

Abstract: An apparatus, electronic device, method and computer program wherein the apparatus includes: processing circuitry; and memory circuitry including computer program code, the memory circuitry and the computer program code configured to, with the processing circuitry, enable the apparatus to perform: obtaining spatial information relating to a captured sound field from a first set of microphones; obtaining one or more signals from a second set of microphones where the one or more signals relate to the captured sound field; and using the obtained spatial information from the first set of microphones to process the one or more signals obtained from the second set of microphones; wherein the first set of microphones is provided within an electronic device and the second set of microphones is provided external to the electronic device.

Abstract: A reverberator for reverberating an audio signal includes a feedback delay loop processor for delaying at least two different frequency subband signals representing the audio signal by different loop delays to obtain reverberated frequency subband signals.

Abstract: A reverberator for reverberating an audio signal includes a feedback delay loop processor for delaying at least two different frequency subband signals representing the audio signal by different loop delays to obtain reverberated frequency subband signals.

Abstract: A reverberator for reverberating an audio signal includes a feedback delay loop processor for delaying at least two frequency subband signals representing the audio signal by different loop delays to obtain reverberated frequency subband signals.

Abstract: An audio signal processing decoder having at least one frequency band and being configured for processing an input audio signal having a plurality of input channels in the at least one frequency band, wherein the decoder is configured to analyze the input audio signal, wherein inter-channel dependencies between the input channels are identified; and to align the phases of the input channels based on the identified inter-channel dependencies, wherein the phases of input channels are the more aligned with respect to each other the higher their inter-channel dependency is; and to downmix the aligned input audio signal to an output audio signal having a lesser number of output channels than the number of the input channels.

Abstract: A reverberator for reverberating an audio signal includes a feedback delay loop processor for delaying at least two different frequency subband signals representing the audio signal by different loop delays to obtain reverberated frequency subband signals.

Abstract: A reverberator for reverberating an audio signal includes a feedback delay loop processor for delaying at least two different frequency subband signals representing the audio signal by different loop delays to obtain reverberated frequency subband signals.

Abstract: An apparatus for extracting a direct and/or ambience signal from a downmix signal and spatial parametric information, the downmix signal and the spatial parametric information representing a multi-channel audio signal having more channels than the downmix signal, wherein the spatial parametric information has inter-channel relations of the multi-channel audio signal, is described. The apparatus has a direct/ambience estimator and a direct/ambience extractor. The direct/ambience estimator is configured for estimating a level information of a direct portion and/or an ambient portion of the multi-channel audio signal based on the spatial parametric information. The direct/ambience extractor is configured for extracting a direct signal portion and/or an ambient signal portion from the downmix signal based on the estimated level information of the direct portion or the ambient portion.

Abstract: An apparatus for generating an audio output signal having two or more audio output channels from an audio input signal having two or more audio input channels includes a provider and a signal processor. The provider is adapted to provide first covariance properties of the audio input signal. The signal processor is adapted to generate the audio output signal by applying a mixing rule on at least two of the two or more audio input channels. The signal processor is configured to determine the mixing rule based on the first covariance properties of the audio input signal and based on second covariance properties of the audio output signal, the second covariance properties being different from the first covariance properties.