Abstract: An audio personalisation method for a user includes: testing the user with an audio test, the audio test comprising: moving a portable device, comprising a position tracking mechanism and a speaker, to a plurality of predetermined test positions relative to the user's head; when within a threshold distance of a predetermined test position, playing a test sound through the speaker of the portable device; and detecting the test sound using a microphone proximate to each of the user's ears, and associating resulting measurement data with the predetermined test position, where the resulting measurement data derived from the detected test sounds is characteristic of the user's head morphology; for a corpus of reference individuals for whom respective HRTFs have been generated, comparing the measurement data from the user's audio test or a head-related transfer function ‘HRTF’ derived from this measurement data with corresponding measurement data of some or all respective reference individuals in the corpus or HRTF

Abstract: An audio personalisation method for a user, to reproduce an area-based or volumetric sound source, includes the steps of, for a head related transfer function ‘HRTF’ associated with the user, smoothing HRTF coefficients relating to peaks and notches in the HRTF's spectral response, responsive to the size of the area or volume of the sound source; filtering the sound source using the smoothed HRTF for the notional position of the sound source; and outputting the filtered sound source signal for playback to the user.

Abstract: A data processing apparatus includes processing circuitry to generate at least one of video content and audio content for a virtual reality environment, input circuitry to receive gaze data for two or more users indicative of a gaze point for each user with respect to the virtual reality environment, and selection circuitry to select at least one object in the virtual reality environment in dependence upon a number of the gaze points corresponding to the object, in which the processing circuitry is configured to adapt at least one of the video content and the audio content in response to the selection of the object.

Abstract: A system for determining the impulse response of an environment, the system comprising an audio emitting unit operable to emit a predetermined sound in the environment, an audio detection unit operable to record the sound output by the audio emitting unit, and an impulse response generation unit operable to identify an impulse response of the environment in dependence upon a frequency response of the audio emitting unit and/or the audio detection unit, and a difference between the predetermined sound and the recorded sound.

Abstract: An audio personalisation method for a user, to reproduce an area-based or volumetric sound source, includes the steps of, for a head related transfer function ‘HRTF’ associated with the user, smoothing HRTF coefficients relating to peaks and notches in the HRTF's spectral response, responsive to the size of the area or volume of the sound source; filtering the sound source using the smoothed HRTF for the notional position of the sound source; and outputting the filtered sound source signal for playback to the user.

Abstract: An audio personalisation method for a user includes: testing the user with an audio test, the audio test comprising: moving a portable device, comprising a position tracking mechanism and a speaker, to a plurality of predetermined test positions relative to the user's head; when within a threshold distance of a predetermined test position, playing a test sound through the speaker of the portable device; and detecting the test sound using a microphone proximate to each of the user's ears, and associating resulting measurement data with the predetermined test position, where the resulting measurement data derived from the detected test sounds is characteristic of the user's head morphology; for a corpus of reference individuals for whom respective HRTFs have been generated, comparing the measurement data from the user's audio test or a head-related transfer function ‘HRTF’ derived from this measurement data with corresponding measurement data of some or all respective reference individuals in the corpus or HRTF

Abstract: A data processing apparatus includes processing circuitry to generate at least one of video content and audio content for a virtual reality environment, input circuitry to receive gaze data for two or more users indicative of a gaze point for each user with respect to the virtual reality environment, and selection circuitry to select at least one object in the virtual reality environment in dependence upon a number of the gaze points corresponding to the object, in which the processing circuitry is configured to adapt at least one of the video content and the audio content in response to the selection of the object.