H04R2205/022

RENDERING BINAURAL AUDIO OVER MULTIPLE NEAR FIELD TRANSDUCERS

An apparatus and method of rendering audio. A binaural signal is split on an amplitude weighting basis into a front binaural signal and a rear binaural signal, based on perceived position information of the audio. In this manner, the front-back differentiation of the binaural signal is improved.

AUDIO DEVICE AND METHOD FOR GENERATING A THREE-DIMENSIONAL SOUNDFIELD
20220322021 · 2022-10-06 ·

The present disclosure relates to an audio device (900) for providing an improved three-dimensional sound experience by means of the generated soundfield. To achieve this, the audio device (900) comprises a housing (901), which has an elliptical torus shape and a plurality of loudspeakers (903a-903h), and a processing circuitry (1310). The processing circuitry is configured to process a plurality of input signals (L, R, UL, UR) in a manner, which enables the plurality of loudspeakers (903a-903h) to form at least a first (DH1, DH3) and second (DH2) horizontal dipoles for crosstalk cancellation within at least two different frequency ranges (HF, MF), and to form at least a first vertical dipole (DV1, DV3) for sound elevation (1204a, 1204b) of the soundfield. Hereby, the desired frequency ranges (HF, MF) may be adjusted using an appropriated distance of the plurality of loudspeakers (903a-903h).

Multiple dispersion standalone stereo loudspeakers

Embodiments are directed to a speaker system that contains an array of multiple dispersion drivers that creates an expansive acoustic pattern to playback multi-channel audio content through a standalone speaker. The speaker system comprises an interface receiving stereo audio; an upmixer generating surround sound formatted audio from the stereo audio including one or more height channels; a virtualizer/downmixer component coupled to the upmixer and generating speaker feeds for two or more loudspeaker output sections, configured to play back the stereo audio, wherein each output section is further configured to play its own dedicated stereo audio signals; and a set of drivers each coupled to a respective output section and configured to project sound in at least two different dispersion patterns.

Headphone device for reproducing three-dimensional sound therein, and associated method
11653163 · 2023-05-16 ·

3D audio virtualization within headphone-type sound reproduction devices, comprises: deriving an HRTF, comprising a PRTF, that includes acoustical effects due to pinnae and ear canals, and a remainder HRTF, that includes acoustical effects due to head, shoulders, torso and other body parts while excluding acoustical effects from pinnae and ear canals; wherein the remainder HRTF is electronically implemented and omits acoustical effects due to pinnae and ear canal effects; and wherein the PRTF is acoustically implemented and personalized to the user through use of two or more transducers positioned such that a front plane of the transducer, the front plane of the transducer's diaphragm, the transducer's mechanical center or the transducer's acoustical center point are 25 mm or more from a user's ear canal entrance, and/or oriented so the 0° axis of acoustical output is aligned with the acoustical output axes of typical external loudspeakers positioned in the acoustical far-field.

Noise-canceling audio device including multiple vibration members

Noise-canceling audio devices may include a first vibration member, a second vibration member, and a microphone supported by a housing. A feedback, noise-cancelation circuit may be operatively connected to the microphone, the feedback, noise-cancelation circuit configured to generate a first portion of a modified audio signal by combining an audio signal with a noise-canceling signal generated in response to a signal from the microphone to at least partially cancel at least a portion of an audible response of the second vibration member. A feed-forward, noise-cancelation circuit may be operatively connected to the microphone, the feed-forward, noise-cancelation circuit configured to compare the signal from the microphone to a predetermined SPL profile and generate a second portion of the modified audio signal configured to at least partially cancel environmental noise, the feedback, noise cancelation circuit configured to output the modified audio signal only to the first vibration member.

Image display system for calibrating a sound projector

The present disclosure relates to an image display system, including a television having a screen, a sound projector, a control unit in signal communication with said screen and said sound projector, said control unit being configured for said sound projector to project one or more audible beams in a room towards one or more target paths. The system includes an optical instrument having a frame and a pair of lenses, detection means and transmission means, said detection means being designed to receive at their input an audio signal having a frequency falling in a 20-20 kHz frequency band and to output a processed signal, said transmission means being designed to receive at their input said processed signal, and to output a calibration signal. The control unit calibrates said sound projector according to said calibration signal generated by said optical instrument.

Headset with internal gimbal

A method and system for a headset with internal gimbal, where the headset comprises a headband, a headband, and ear cups coupled to the headband, wherein each ear cup may be coupled to the headband utilizing an internal gimbal. The internal gimbal may comprise a tip that is wider than its base. The tip may be rounded. The headband may comprise headband endcaps at each end of the headband. A headband slide may be coupled to each headband endcap. The headband ear cups may be coupled to the headband via the headband slides. Each headband slide may be coupled to a headband endcap via a headband pivot. The headband pivot may provide rotational motion of the ear cups with respect to the headband. The force on ears of a user of the headset may be spread evenly by the internal gimbals.

Speaker system, sound processing device, sound processing method, and recording medium

A speaker system includes a wearable speaker capable of outputting a first sound which is a voice of a communication partner of a talker and a second sound, a microphone, and a sound processing device which processes a sound output from the wearable speaker and a sound picked up by the microphone. The sound processing device generates a reference signal by synthesizing a first signal indicating the first sound and a second signal indicating the second sound, outputs the first signal and the second signal to the wearable speaker, obtains a sound pickup signal including the voice of the talker from the microphone, performs, on the sound pickup signal, a process of cancelling the sound component output from the wearable speaker by using the reference signal, and outputs the sound pickup signal on which the cancellation process has been performed.

BAFFLE FOR LINE ARRAY LOUDSPEAKER
20170353786 · 2017-12-07 ·

A loudspeaker baffle that provides variable sound patterns is described. The baffle may support non-low frequency sound sources and a waveguide to provide varying sound beam patterns. The baffle may include a center mount adapted to receive a plurality of audio outputs and a plurality of low frequency apertures to receive a plurality low frequency output. The waveguide may be formed from a front face of the baffle. The front face may be intermediate the center mount and the low frequency apertures. The front face may include a continuously varying waveguide surface with a first waveguide portion adjacent a first audio output of the plurality of audio outputs providing a first sound pattern and a second waveguide portion adjacent a second audio output of the plurality of audio outputs providing a second sound pattern that is different than the first sound pattern.

LOUDSPEAKER SYSTEM FOR ARBITRARY SOUND DIRECTION RENDERING

One embodiment of the present invention sets forth a technique for generating audio for a speaker system. The technique includes receiving an audio input signal, a first location associated with the audio input signal, a first geometric model of the speaker system, and a second geometric model of one or more surfaces in proximity to the speaker system. The technique also includes generating a plurality of output signals for a plurality of speaker drivers in the speaker system based on the audio input signal, the first location, and the first and second geometric models. The technique further includes transmitting the plurality of output signals to the plurality of speaker drivers, wherein the plurality of speaker drivers emit audio that corresponds to the plurality of output signals, the emitted audio rendering a sound corresponding to the audio input signal at the first location.