Abstract: An apparatus for spatial audio signal encoding, the apparatus comprising at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: determine, for two or more audio signals, at least one spatial audio parameter for providing spatial audio reproduction, the at least one spatial audio parameter comprising a direction parameter with an elevation and an azimuth component; define a spherical grid generated by covering a sphere with smaller spheres, wherein the centres of the smaller spheres define points of the spherical grid; and convert the elevation and azimuth component of the direction parameter to an index value based on the defined spherical grid.

Abstract: An apparatus comprising means for: in a first mode rendering sound scenes defined by a spatial audio content to a user, wherein a current sound scene is selected by a current point-of-view of the user; and in a second mode, automatically determining, at least in part, a sequence of notional points-of-view of the user in dependence upon the spatial audio content; and rendering sound scenes defined by the spatial audio content to a user, wherein a sequence of sound scenes are selected by the sequence of notional points-of-view of the user.

Abstract: It is inter alia disclosed to determine a first quantized representation of an input vector, and to determine a second quantized representation of the input vector based on a codebook depending on the first quantized representation.

Abstract: A method comprising: in response to a determination that a user is not consuming or not fully consuming virtual content, rendering to the user, a real-time notification in response to real-time virtual content consumable by the user, wherein the real-time notification directs a user to adopt a particular orientation in the real space for starting or augmenting consumption, of the real-time virtual content.

Abstract: An apparatus configured to use captured spatial audio content captured by a rotatable spatial audio capture microphone array, the captured spatial audio content defining the three-dimensional arrangement of the audio in the scene, an orientation of the aural scene defined relative to the microphone array at the time of audio capture, and use captured direction data representative of the direction of a reference direction of said microphone array relative to the scene over a time during which said spatial audio content was captured; to generate modified spatial audio content in which the aural scene is decoupled from any rotation of the rotatable spatial audio capture microphone array that occurred during capture of the spatial audio content for presentation to the recipient user relative to a space in which the recipient user is located by virtue of modification of the orientation of the aural scene using the captured direction data.

Abstract: A method including, detecting an overlap between at least two waveform renderings, wherein at least one is related to a first user and another is related to a second user, the at least two waveform renderings comprise an audio object, determining at least one difference between the at least two waveform renderings for the audio object when the overlap is detected, determining a rendering modification decision for the audio object associated with the at least one difference, processing at least one of the at least two waveform renderings dependent on the rendering modification decision so as to introduce an effect related to the determined at least one difference, and performing a modified rendering with the processed at least one of the at least two waveform renderings comprising the effect for the audio object.

Abstract: A method comprises providing an audio file comprising two or more discrete tracks; separating the two or more discrete tracks; setting a limit on an amount at least one of the two or more discrete tracks may be altered; and outputting the separated and limited discrete tracks as a file for use by an end user.

Abstract: Phase effect interference is determined at a listening location between signals from at least two audio objects; and a modified position is computed for at least one of the audio objects such that the determined phase effect interference at the listening location is altered as a result of the modified position. For each audio object for which the position is modified at least phase of at least one frequency component of the respective signal is adjusted in correspondence with the modified position so as to eliminate the determined phase effect interference. The signals from the at least two audio objects are formed after this adjusting; and then the formed signals are provided to a sound system comprising multiple audio transducers so as to render the formed signals at the listening position where the phase effect interference is eliminated during rendering.

Abstract: A method comprising: receiving lattice vector quantised parameter data, the parameter data representing at least one audio signal; determining within the data at least one bit error; and controlling the decoding of the data to generate an audio signal based on the determining of the bit error.

Abstract: A method including providing haptic feedback to a user along a surface of a touch interactive device in use; and changing the haptic feedback to the user during a touch motion on the touch interactive device, where the touch interface device performs at least one operation based upon at least a portion of the touch motion, where the at least one operation provides an information associated with the at least one operation separate from the haptic feedback, and where the changing of the haptic feedback is based at least partially upon at least one of the information and the at least one operation.

Abstract: A method including accessing, by a user device, a location corresponding to at least one microphone array in a content of a free-viewpoint audio environment. The method includes tracking user movement of a user based on a user position in the content of the free-viewpoint audio environment, determining a probability of error in a direction estimate from at least one part of an audio signal; and applying audio ambience to the at least one part of the audio signal based on the user displacement from the nearest microphone array of the at least one microphone array and the probability of error in the direction estimate from the at least one part of the audio signal.

Abstract: An apparatus comprising at least one processor and at least one memory including a computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: receive at least one audio signal; obtain, associated with the at least one audio signal over at least one frequency band: at least one spatial audio energy ratio parameter; and at least one remainder energy ratio, wherein a sum of the at least one spatial audio energy ratio parameter and the at least one remainder energy ratio over the frequency band equal a determined value; and control a transmission/storage of the at least one spatial audio energy ratio, and the at least one remainder energy ratio.

Abstract: A method including, detecting an overlap between at least two waveform renderings, wherein the at least two waveform renderings comprise an audio object, determining at least one difference between the at least two waveform renderings for the audio object when the overlap is detected, determining a rendering modification decision for the audio object associated with the at least one difference, processing at least one of the at least two waveform renderings dependent on the rendering modification decision so as to introduce an effect related to the determined at least one difference, and performing a modified rendering with the processed at least one of the at least two waveform renderings comprising the effect for the audio object.

Abstract: A method including, determining, for each of at least two listening positions, a default rendering, determining an overlap for at least one audio source for the default rendering based on the at least two listening positions, determining at least one audio source rendering modification associated with at least one of the at least two listening positions based on the determined overlap, and providing a modified rendering for at least one of the at least two listening positions by processing the at least one audio source rendering so as to improve audibility of the at least one audio source during the audio rendering for at least one of the at least two listening positions.

Abstract: A technique for audio encoding is provided.

Abstract: A technique for audio encoding is provided.

Abstract: A method is provided including determining a first listening point of a user in an audio space, wherein the audio space comprises at least the first listening point and a second listening point; rendering audio associated with at least one first audio object of the first listening point based on a position and/or orientation of the user relative to the first listening point; in response to receiving an indication of a switch from the first listening point to a second listening point, controlling the rendering of the audio based at least on signaling associated with at least the first audio object, wherein the signaling comprises one or more conditions indicating whether playback of the first audio object is to continue during and/or after the switch to the second listening point.

Abstract: A method including accessing, by a user device, a location corresponding to at least one microphone array in a content of a free-viewpoint audio environment. The method includes tracking user movement of a user based on a user position in the content of the free-viewpoint audio environment, determining a probability of error in a direction estimate from at least one part of an audio signal; and applying audio ambience to the at least one part of the audio signal based on the user displacement from the nearest microphone array of the at least one microphone array and the probability of error in the direction estimate from the at least one part of the audio signal.

Abstract: A method including, during a free-viewpoint rendering to a user, where the free-viewpoint rendering comprises rendering of an audio object, and during relative movement between a location of the user and the audio object in the free-viewpoint rendering, detecting a locational conflict abnormality between the audio object and the location of the user; and based upon the detecting of the locational conflict abnormality, changing the rendering of the audio object, where the changing is based upon at least one predetermined abnormality modification parameter.

Abstract: An audio scene is captured in multiple audio channels by distributed microphones. Based on at least one of a viewpoint of a user and at least one preference of a user, two or more of those multiple audio channels are selected from among those multiple audio channels; those selected two or more audio channels are prioritized based on at least one of preferences of the user, requirements of a software application of a device operated by the user, and requirements of operating conditions of the device. After that prioritizing, at least one of the selected two or more audio channels is encoded into a coded monitor mix; which is sent to the device over a transmission link.