Abstract: An apparatus for assisting spatial audio signal processing, the apparatus including circuitry configured to: capture, at least using at least three microphones in the apparatus, sensor data including microphone audio signals; analyse the sensor data to determine at least one three-dimension direction of a sound source; and process the sensor data to map the at least one three-dimension direction of the sound source to at least one further direction, wherein the processing of the sensor data is configured to employ at least a parasagittal plane based mapping.

Abstract: According to an aspect, there is provided an apparatus for a wearable terminal device including circuitry configured for performing the following. The apparatus receives, via a bone conduction sensor, a bone conduction signal and, via at least one microphone over the air, an audio signal. The bone conduction signal and the audio signal are, at least in part, substantially concurrently recorded signals. The apparatus calculates a value of a similarity metric for evaluating an extent of similarity between the bone conduction and audio signals. In response to the value exceeding a pre-defined threshold, the apparatus causes performing one or more actions including executing, in response to detecting a voice command, the voice command and/or modifying, if the audio signal is received via a plurality of microphones over the air, one or more audio focusing parameters of the plurality of microphones for increasing the value of the similarity metric.

Abstract: An apparatus including circuitry configured to: obtain an object track and an ambience track; obtain a control value configured to control the relative levels of the object track and the ambience track; estimate a leakage between the object track and the ambience track; determine at least one leakage level gain control value based on the control value and the leakage; and apply the at least one leakage level gain value to at least one of: the object track; and the ambience track, the application of the at least one leakage level gain value is such that a rendered audio signal is based on the application of the at least one leakage level gain control value to at least one of: the object track; and the ambience track.

Abstract: Examples of the disclosure relate to apparatus, methods and computer programs for enabling audio zooming. The apparatus can include circuitry configured for determining, for an audio signal, if sound energy in at least one first direction is different to sound energy in at least one second direction by at least a threshold amount. The circuitry may also be configured for controlling an amount of headroom provided based on whether or not sound energy in at least one first direction is different to the sound energy in at least one second direction by at least a threshold amount.

Abstract: An apparatus including circuitry configured for obtaining a sequence of first images captured by an image sensor; circuitry configured for obtaining image metadata dependent upon a sequence of zoom levels, wherein the sequence of zoom levels is a sequence corresponding to the sequence of first images; circuitry configured for enhancing zoom including circuitry configured for: using the image metadata to obtain the sequence of zoom levels; smoothing the sequence of zoom levels to produce a smoothed sequence of zoom levels; creating a sequence of new images from the sequence of first images based on the smoothed sequence of zoom levels, wherein the smoothed sequence of zoom levels vary a size of a crop used on the sequence of first images to produce the sequence of new images; and circuitry configured for storing, displaying or transmitting the created sequence of new images.

Abstract: An apparatus comprising at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code configured to with the at least one processor to cause the apparatus to at least perform: estimating a signal to noise ratio value for an audio signal; generating a post-filter comprising at least one of: a first formant frequency filter and a second formant frequency filter, wherein the post-filter is dependent on the signal to noise ratio value for the audio signal.

Abstract: An apparatus for extending the bandwidth of an audio signal, the apparatus being configured to: generate an excitation signal from an audio signal, wherein in the audio signal comprises a plurality of frequency components; extract a feature vector from the audio signal, wherein the feature vector comprises at least one frequency domain component feature and at least one time domain component feature; determine at least one spectral shape parameter from the feature vector, wherein the at least one spectral shape parameter corresponds to a sub band signal comprising frequency components which belong to a further plurality of frequency components; and generate the sub band signal by filtering the excitation signal through a filter bank and weighting the filtered excitation signal with the at least one spectral shape parameter.

Abstract: An apparatus comprising at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code configured to with the at least one processor to cause the apparatus to at least perform: estimating a signal to noise ratio value for an audio signal; generating a post-filter comprising at least one of: a first formant frequency filter and a second formant frequency filter, wherein the post-filter is dependent on the signal to noise ratio value for the audio signal,

Abstract: Apparatus comprising: an input amplitude and phase calculator configured to determine at least one amplitude value and phase value dependent on a first audio signal; a synthesis amplitude calculator configured to synthesize a further amplitude value associated with each amplitude value dependent on a determined harmonic shaping function; a synthesis phase calculator configured to synthesize a further phase value associated with each phase value; and a signal synthesizer configured to generate a bandwidth extension signal dependent the further amplitude value and the further phase values.

Abstract: An apparatus for extending the bandwidth of an audio signal, the apparatus being configured to: generate an excitation signal from an audio signal, wherein in the audio signal comprises a plurality of frequency components; extract a feature vector from the audio signal, wherein the feature vector comprises at least one frequency domain component feature and at least one time domain component feature; determine at least one spectral shape parameter from the feature vector, wherein the at least one spectral shape parameter corresponds to a sub band signal comprising frequency components which belong to a further plurality of frequency components; and generate the sub band signal by filtering the excitation signal through a filter bank and weighting the filtered excitation signal with the at least one spectral shape parameter.