Abstract: Examples of the disclosure relate to apparatus, methods and computer programs for providing spatial audio. In examples of the disclosure speech or other sources of a first category can be identified. Spatial information relating to the speech or sources of a first category can be determined using data obtained from audio signals. The identified speech or other sources of a first category can then be spatially reproduced using the spatial information. This can enable the speech or other sources of a first category to be enhanced compared to other parts of the sound signals. This can provide for improved spatial audio content.

Abstract: Examples of the disclosure relate to apparatus, methods and computer programs for repositioning spatial audio streams. The apparatus is configured to receive a plurality of spatial audio streams wherein the spatial audio streams include one or more audio signals and associated spatial metadata. The apparatus is also configured to receive obtaining repositioning information relating to at least one of the plurality of spatial audio streams and repositioning the at least one of the plurality of spatial audio streams based on the repositioning information.

Abstract: An apparatus circuitry including configured to: obtain two or more audio signal sets, wherein each audio signal set is associated with a position; obtain at least one parameter value for at least two of the audio signal sets; obtain the positions associated with at least the at least two of the audio signal sets; obtain a listener position; generate at least one audio signal based on at least one audio signal from at least one of the two or more audio signal sets based on the positions associated with the at least the at least two of the audio signal sets and the listener position; generate at least one modified parameter value based on the obtained at least one parameter value for the at least two of the audio signal sets, the positions associated with the at least two of the audio signal sets and the listener position; and process the at least one audio signal based on the at least one modified parameter value to generate a spatial audio output.

Abstract: An apparatus including circuitry configured to: receive a spatial audio signal, the spatial audio signal including at least one audio signal and spatial metadata associated with the at least one audio signal; obtain a room effect control indication; and determine, based on the room effect control indication, whether a room effect is to be applied to the at least one audio signal, wherein the circuitry is configured, when the room effect is to be applied to the spatial audio signal, to: generate a first part binaural audio signal based on the at least one audio signal and spatial metadata; generate a second part binaural audio signal based on the at least one audio signal, at least the second part binaural audio signal is generated with at least in part the room effect so as to have a different response than a response of the first part binaural audio signal; and combine the first part binaural audio signal and the second part binaural audio signal to generate a combined binaural audio signal.

Abstract: An apparatus including circuitry configured to obtain a defocus direction; process a spatial audio signal that represents an audio scene to generate a processed spatial audio signal that represents a modified audio scene based on the defocus direction, so as to control relative deemphasis in, at least in part, a portion of the spatial audio signal in the defocus direction relative to at least in part other portions of the spatial audio signal; and output the processed spatial audio signal, wherein the modified audio scene based on the defocus direction enables the deemphasis in, at least in part, the portion of the spatial audio signal in the defocus direction relative to at least in part other portions of the spatial audio signal.

Abstract: An apparatus configured to: determine, for two or more audio signals, at least one spatial audio parameter for providing spatial audio reproduction, wherein the two or more audio signals are configured to reproduce a sound scene, wherein the at least one spatial audio parameter comprises, at least, at least one coherence parameter; determine at least one transport signal based, at least partially, on the two or more audio signals, wherein a fewer number of channels are associated with the at least one transport signal than with the two or more audio signals, wherein the sound scene is configured to be reproduced based, at least partially, on the at least one transport signal and at least the at least one coherence parameter; and encode at least the at least one coherence parameter and the at least one transport signal.

Abstract: According to an example embodiment, a technique for processing an input audio signal (101) comprising a multi-channel audio signal is provided, the technique comprising: deriving (104), based on the input audio signal (101), a first signal component (105-1) comprising a multi-channel audio signal that represents a focus portion of a spatial audio image conveyed by the input audio signal and a second signal component (105-2) comprising a multi-channel audio signal that represents a non-focus portion of the spatial audio image; processing (112) the second signal component (105-2) into a modified second signal component (113) wherein the width of the spatial audio image is extended from that of the second signal component (105-2); and combining (114) the first signal component (105-1) and the modified second signal component (112) into an output audio signal (115) comprising a multi-channel audio signal that represents partially extended spatial audio image.

Abstract: There is inter alia disclosed an apparatus for spatial audio encoding which can receive or determine for one or more audio signals (102), spatial audio parameters (106) on a sub band basis for providing spatial audio reproduction, the spatial audio parameters can comprise a coherence value (112) for each sub band of a plurality of subbands (202) of a frame. The apparatus then determines a significance measure for the coherence values (401) of the plurality of sub bands of the frame and uses the significance measure to determine whether to encode (403) the coherence values of the plurality of sub bands of the frame.

Abstract: An apparatus (303) comprising means configured to: obtain at least one audio signal (112); determine at least one direction parameter (506) of at least one propagating sound associated with the at least one audio signal (112); determine at least one direction (302) of at least one sound source associated with the at least one audio signal (112); modify the at least one direction parameter (506) in accordance with the determined at least one direction (302); and output the modified at least one direction parameter (508).

Abstract: There is inter alia disclosed an apparatus for spatial audio encoding which can receive or determine for one or more audio signals, spatial audio parameters on a sub band basis for providing spatial audio reproduction, the spatial audio parameters can comprise a coherence value for each sub band of a plurality of sub-bands of a frame. The apparatus then determines a significance measure for the coherence values of the plurality of sub bands of the frame and uses the significance measure to determine whether to encode the coherence values of the plurality of sub bands of the frame.

Abstract: An apparatus including circuitry configured to: obtain at least two audio signals; determine a type of the at least two audio signals; process the at least two audio signals configured to be rendered based on the determined type of the at least two audio signals.

Abstract: An apparatus for spatial audio encoding including circuitry configured to: obtain a first spatial audio stream of a first spatial audio format configured to be encoded with a low bitrate, wherein the first spatial audio stream includes an audio signal and a first metadata; obtain a second and different spatial audio stream of a second spatial audio format, wherein the second spatial audio stream includes a second audio signal and a second metadata; convert the second spatial audio format into the first spatial audio format to encode a converted second spatial audio stream with the low bitrate, wherein the converted spatial audio stream represents spatial audio properties of the second spatial audio stream; combine the first spatial audio stream and the converted second spatial audio stream to generate a combined spatial audio stream; and encode the combined spatial audio stream.

Abstract: An apparatus configured to: determine at least one spatial audio parameter for providing spatial audio reproduction; determine at least one transport signal; determine at least one coherence parameter for at least two frequency bands, wherein a sound scene is configured to be reproduced based, at least partially, on the at least one transport signal, the at least one spatial audio parameter, and the at least one coherence parameter; and provide the at least one transport signal, the at least one spatial audio parameter, and the at least one coherence parameter for encoding.

Abstract: An apparatus performs; determining, for at least one first audio signal of an audio signal format, at least one metadata parameter; determining for at least one further audio signal of a further audio signal format; at least one further metadata parameter; controlling combining of the at least one metadata parameter with the at least one further metadata parameter to generate a combined metadata, wherein the combined metadata is configured to be associated with a combined audio signal formed from the at least one first audio signal and the at least one further audio signal in such a way that the combined metadata includes at least one spatial audio parameter.

Abstract: A method for spatial audio signal encoding comprising: obtaining a plurality of audio direction parameters, wherein each parameter comprises an elevation value and an azimuth value and wherein each parameter has an ordered position; deriving for each of the plurality of audio direction parameters a corresponding derived audio direction parameter (SP) comprising an elevation and an azimuth value, corresponding derived audio direction parameters (SP) being arranged in a manner determined by a spatial utilization defined by the elevation values and the azimuth values of the plurality of audio direction parameters; rotating each derived audio direction parameter (SP) by the azimuth value (?0) of an audio direction parameter in the first position of the plurality of audio direction parameters and quantizing the rotation to determine for each a corresponding quantized rotated derived audio direction parameter; changing the ordered position of an audio direction parameter to a further position coinciding with a posi

Abstract: An apparatus including circuitry configured to: obtain two or more audio signal sets, wherein each audio signal set is associated with a position; obtain at least one parameter value for at least two of the audio signal sets; obtain the positions associated with the at least two of the audio signal sets; obtain a listener position; obtain source position information; obtain values related to source energies associated with the source position information; generate at least one audio signal based on at least one audio signal from at least one of the audio signal sets based on the positions associated with the at least two of the audio signal sets and the listener position; generate at least one modified parameter value and a residual value; and process the at least one audio signal to generate a spatial audio output.

Abstract: An apparatus (317) comprising means configured to: receive a spatial audio signal, the spatial audio signal comprising at least one audio signal and spatial metadata (122) associated with the at least one audio signal; generate a mixing value (320) based on the spatial metadata (122) and a predefined parameter (322) which imparts effects of a rendering of a multichannel audio signal having a multichannel configuration to a further multichannel audio signal having a further multichannel configuration on generated output signals; and generating the output audio signals having the further multichannel configuration based on the mixing value (320) and the spatial audio signal.

Abstract: An apparatus including circuitry configured to: obtain at least two audio signals; determine a type of the at least two audio signals; process the at least two audio signals configured to be rendered based on the determined type of the at least two audio signals.

Abstract: Examples of the disclosure relate to apparatus, methods and computer programs for processing spatial audio. In examples, an apparatus can be configured to receive information indicative of a first orientation and/or location of a listener and also to obtain input audio signals. The apparatus can be configured to process the input audio signals using at least the information indicative of the first orientation and/or location of the listener to generate processed audio signals and to generate spatial metadata based at least on the input audio signals. The apparatus can also be configured to enable transmission of the processed audio signals and the spatial metadata, wherein the transmitted signals and the spatial metadata are configured to enable rendering of a spatial audio output based on the processed audio signals and the spatial metadata and information indicative of a second orientation and/or location of the listener.

Abstract: An apparatus configured to: obtain at least one signal, wherein the at least one signal comprises one or more transport audio signals; obtain an indicator specifying a type of the one or more transport audio signals; and process the one or more transport audio signals based, at least partially, on the indicator to generate one or more processed transport audio signals that are of an at least partially different type than the type of the one or more transport audio signals.