Abstract: An apparatus configured: based on a point of interest identified in one or more instances of virtual reality content comprising at least visual imagery and data to provide a virtual reality space in which the visual imagery is displayed; and based on context information for at least one of the instances of the virtual reality content, the context information defining the extent of a virtual sub-volume of the virtual reality space that includes the point of interest; to provide for display of a virtual-reality-content-review-space to a user comprising a space in which a VR preview of the instances of virtual reality content is displayed at a location spaced from a point of view of the user, the or each VR preview comprising the respective sub-volume defined by the context information for providing the user with an understanding of the virtual reality space around the point of interest.

Abstract: An apparatus including circuitry configured for: defining at least one ambience audio representation, the ambience audio representation includes at least one respective diffuse background audio signal and at least one parameter, the at least one parameter associated with the at least one respective diffuse background audio signal and further associated with at least one frequency range or at least one part of the frequency range, at least one time period or at least one part of the time period and a directional range for a defined position within an audio field, wherein the at least one component representation is configured to be used in rendering an ambiance audio signal by a 6- degrees-of-freedom or enhanced 3-degrees-of-freedom Tenderer by processing, based on the at least one ambience audio representation and a listener position and/or direction, the respective diffuse background audio signal.

Abstract: An apparatus, method and computer program is described comprising: receiving a near-field audio source signal from a near-field microphone (22); receiving a far-field audio signal from an array comprising one or more far-field microphones (23); determining a filter length of a first portion of a room impulse response filter for the near-field microphone, wherein said filter length of said first portion is the same at each of a plurality of frequency bands of the filter and wherein said filter length of said first portion includes a direct acoustic propagation delay; and determining a filter length of a second portion of the room impulse response filter at each of the plurality of frequency bands, wherein the filter length of said second portion is frequency-dependent.

Abstract: An apparatus including circuitry configured for: obtaining at least one spatial audio signal comprising including at least one audio signal, wherein the at least one spatial audio signal defines an audio scene forming at least in part media content; rendering an audio scene based on the at least one spatial audio signal; obtaining at least one augmentation audio signal; transforming the at least one augmentation audio signal to at least two audio objects; augmenting the audio scene based on the at least two audio objects.

Abstract: A method comprising: using a tracked real point of view of a user in a real space and a first mapping between the real space and a virtual space to determine a point of view of a virtual user within the virtual space; causing rendering to the user at least part of a virtual scene determined by the point of view of the virtual user within the virtual space; and using a selected one of a plurality of different mappings to map tracked user actions in the real space to actions of the virtual user in the virtual space, wherein, when a first mode is selected, the method comprises mapping tracked user actions in the real space, using the first mapping, to spatially-equivalent actions of the virtual user in the virtual space, and wherein, when a second mode is selected, the method comprises mapping tracked user actions in the real space, using a second mapping different to the first mapping, to non-spatially-equivalent actions of the virtual user in the virtual space, wherein the second mapping makes available user i

Abstract: A technique for encoding a multichannel audio encoding is provided that includes quantizing a set of first LP filter coefficients for an audio signal in a first channel using a predefined first quantizer; and quantizing a set of second LP filter coefficients for an audio signal in a second channel on the basis of the quantized set of first LP filter coefficients. The quantization of the set of second LP filter coefficients includes: deriving, on basis of the quantized set of first LP filter coefficients by using a predefined predictor, a set of predicted LP filter coefficients for the audio signal in said second channel, computing prediction error as a difference between respective LP coefficients of the set of second LP filter coefficients and the set of predicted LP filter coefficients, and quantizing the prediction error.

Abstract: A method, apparatus and computer program, the method comprising: obtaining a first audio signal emitted by an audio source, wherein the first audio signal is captured by a first microphone located at a first position; obtaining at least one second audio signal emitted by the same audio source, wherein the at least one second audio signal is captured by one or more second microphones located at one or more second positions which are different to the first position; determining if one or more of the second audio signals were obtained within a threshold time; and if one or more second audio signals were obtained within the threshold time causing the one or more second audio signals that were obtained within the threshold time to be processed for rendering spatial audio to a user; and if one or more second audio signals were not obtained within the threshold time causing, at least part of, the one or more second audio signals that were not obtained within the threshold time to be discarded.

Abstract: An apparatus comprising means for: simultaneously controlling content rendered by a hand portable device and content rendered by a spatial audio device; and providing for rendering to a user, in response to an action by the user, of a first part, not a second part, of a spatial audio content via the hand portable device not the spatial audio device.

Abstract: The application relates to an apparatus, method and computer program for representing a sound space for use in mediated reality applications. The apparatus including circuitry configured for: obtaining one or more values for one or more acoustic parameters for a plurality of locations within a sound space; and generating an image file representing the sound space where an intensity value for a pixel represents the value for an acoustic parameter at a location corresponding to the pixel such that the data in the image file enables the sound space to be rendered.

Abstract: An apparatus comprising means for: receiving values for sub-bands of a frame of an audio signal, the values comprising at least one azimuth value, at least one elevation value and at least one energy ratio value for each sub-band; determining an allocation of first number of bits to encode the values of the frame, wherein the first number of bits are fixed; encoding the at least one energy ratio value for a frame based on a defined allocation of a second number of bits from the first number of bits; encoding the at least one azimuth value and/or at least one elevation value of the frame based on a defined allocation of a third number of bits from the first number of bits, wherein the third number of bits is variably distributed on a sub-band-by-sub-band basis.

Abstract: An apparatus including circuitry configured for receiving a spatial media content file including a plurality of viewpoints; circuitry configured for determining a first viewpoint from the plurality of viewpoints for a first user consuming the spatial media content file; circuitry configured for receiving an indication that affects an audio rendering of the first viewpoint for the first user, wherein the indication is associated with one or more actions of at least one second user consuming the spatial media content file; and circuitry configured for controlling the audio rendering of the first viewpoint for the first user in response to the receiving of the indication based on at least one of: a position and/or orientation of the first user, and the one or more actions of the second user.

Abstract: A method, apparatus and computer program, the method including enabling an output of an audio mixer to be rendered for a user where the user is located within a sound space, wherein at least one input channel is provided to the audio mixer and the at least one input channel receives a plurality of microphone output signals obtained by a plurality of microphones recording the sound space; determining that a first microphone records one or more sound objects within the sound space; and in response to the determining, enabling one or more of the plurality of microphone output signals to be, at least partially, removed from the at least one input channel to the audio mixer.

Abstract: A method, apparatus and computer program including obtaining a first audio signal from at least a first microphone located at a first distance from an audio source; obtaining a local audio signal from a local microphone wherein the local microphone is located closer to the audio source than the first microphone; identifying the audio source using the first audio signal and the local audio signal; using the identified audio source to determine a delay between the first audio signal and the local audio signal: and using the determined delay to determine the length of the first audio signal and the local audio signal to be made available for processing so as to enable temporal alignment of at least the first audio signal and the local audio signal.

Abstract: An apparatus, the apparatus comprising means configured to: receive audio content comprising voice audio and ambient audio and directional information indicative of a direction of the at least one sound source and the direction of the remote user relative to the reference point; receive a reference location; provide for presentation of the ambient audio with a first spatial audio effect, based on the directional information, and presentation of the voice audio with a second spatial audio effect, based on the directional information, receive repositioning signalling from the remote user device; and provide for presentation of the audio content using a modification of the first spatial audio effect to reposition an ambient-perceived direction based on the repositioning signalling and/or a modification of the second spatial audio effect to reposition a voice-perceived direction based on the repositioning signalling to increase the spatial separation between the voice-perceived direction and the ambient-perceived

Abstract: A method is provided, comprising: preventing rendering of specific audio in a virtual space to a user through virtual reality; enabling the user to explore the virtual space through user-perspective controlled virtual reality without hearing the specific audio; and in response to an interrupt, performing a visual transition to audio-visual content comprising the specific audio and visual content associated with the specific audio and then rendering specific audio and the visual content associated with the specific audio in the virtual space to the user through virtual reality.

Abstract: An apparatus comprising means for: in response to user input, selecting at least one sound source of a spatial audio scene, comprising multiple sound sources, the spatial audio scene being defined by spatial audio content; selecting at least one related contextual sound source based on the at least one selected sound source; and causing rendering of an audio preview, representing the spatial audio content, that can be selected by a user, wherein the audio preview comprises a mix of sound sources including at least the at least one selected sound source and the at least one related contextual sound source but not all of the multiple sound sources of the spatial audio scene, and wherein selection of the audio preview causes an operation on at least the selected sound source.

Abstract: An apparatus configured, based on virtual reality content for viewing in virtual reality, the virtual reality content comprising visual content for display in a three dimensional virtual reality space and spatial audio content comprising audio for presentation such that it is audibly perceived to originate from one or more particular directions in the virtual reality space corresponding to one or more points or regions in the visual content, the virtual reality content defining at least a ground level of said virtual reality space; and based on display of a birds-eye view of the virtual reality space to a user comprising a view of the visual content substantially downward towards said ground level from a point of view location in said virtual reality space elevated from said ground level; to provide for presentation of said spatial audio content with a spatial audio modification, the spatial audio modification configured to modify the one or more particular directions from which the user perceives the spatial

Abstract: An apparatus comprising means configured to: receive audio content from a remote user device, the audio content comprising primary audio and secondary audio, the secondary audio being different to the primary audio and comprising ambient audio; receive secondary audio importance information associated with said audio content and indicative of an importance of the secondary audio; receive current audio presentation information indicative of at least whether audio from one or more audio sources is currently being presented as spatial audio such that respective audio of the one or more audio sources is to be perceived as originating from one or more respective directions or ranges of directions around the user; provide for presentation of the primary audio; and provide for presentation of the secondary audio based on the secondary audio importance information and the current audio presentation information.

Abstract: Apparatus including circuitry configured for: determining, for two or more speaker channel audio signals, at least one spatial audio parameter for providing spatial audio reproduction; determining between the two or more speaker channel audio signals at least one audio signal relationship parameter, the at least one audio signal relationship parameter being associated with at least one coherence parameter, in such a way that the at least one coherence parameter provides at least one interchannel coherence information for at least two frequency bands, to reproduce the two or more speaker channel audio signals based on the at least one spatial audio parameter and the at least one audio signal relationship parameter; and transmitting using at least one determined value.

Abstract: An apparatus including circuitry configured for: defining at least one parameter field associated with an input multi-channel audio signals, the at least one parameter field configured to describe at least one characteristic of the multi-channel audio signals; determining at least one spatial audio parameter associated with the multi-channel audio signals; and controlling a rendering of the multi-channel audio signals by processing the input multichannel audio signals using at least the at least one characteristic of the multi-channel audio signals and the at least one spatial audio parameter.