The present invention for a method for processing an audio signal comprises the steps of: receiving a channel signal; receiving an input of location information for a plurality of previously configured speakers; configuring the location of a target speaker from among the locations of member speakers; placing a virtual speaker at the location of a member speaker on the same layer as the target speaker on the basis of location information for the previously configured speakers; rendering a channel signal corresponding to the location of the target speaker on the basis of the placed virtual speaker; and down-mixing the rendered channel signal with the channel signal corresponding to the previously configured speaker, wherein the channel signal comprises the channel signal corresponding to a member speaker.

An audio processor for reproducing multichannel audio has a normal layer processing and a lower layer processing. The normal layer processing is configured for processing one or more channels of the object-specific audio or the multichannel audio belonging to a normal layer. The lower layer processing is configured for processing at least one channel or more channels of the object-specific audio or the multichannel audio belonging to a lower layer. The lower layer processing is configured to feed at least one signal belonging to the one channel or the more channels of the lower layer to a subwoofer output.

Multichannel audio playback devices and associated systems and methods are disclosed herein. In some examples, a first playback device is configured to receive a source stream of audio content comprising left, right and center input channels. In a first mode, the first playback device is configured to play back audio via a plurality of transducers based on the left, right, and center input channels. In a second mode, in which the first playback device is bonded to second and third playback devices, the first playback device is configured to (i) play back audio via the plurality of transducers based on at least the center input channel, (ii) cause audio to be played via the second playback device based on at least the right input channel, and (iii) cause audio to be played via the third playback device based on at least the left input channel.

Examples of the disclosure relate to reducing phase mismatches in low frequency sound reproduction. At least one low frequency component and at least one high frequency component of at least one audio signal are obtained. The at least one low frequency component is processed to generate at least one harmonic component associated with the at least one low frequency component. The harmonic components and/or the high frequency component can be adjusted relative to each other. An output signal can then be generated based on the adjusted harmonic component and high frequency component. The output signal is generated to have improved low frequency perception during playback.

An approach is provided for creating a digital representation of an analog sound. The approach retrieves a number of digital sound data streams with each of the digital sound data streams corresponding to an orientation angle of the digital sound data streams with respect to one another. The digital representation of the analog sound is generated by processing the digital sound data streams and their corresponding orientation angles.

A system is provided that produces haptic effects. The system receives an audio signal that includes a low-frequency effects audio signal. The system further extracts the low-frequency effects audio signal from the audio signal. The system further converts the low-frequency effects audio signal into a haptic signal by shifting frequencies of the low-frequency effects audio signal to frequencies within a target frequency range of a haptic output device. The system further sends the haptic signal to the haptic output device, where the haptic signal causes the haptic output device to output one or more haptic effects.

A bass management system and method for mitigating bass management errors by using explicit information available in the object audio rendering process and deriving the correct subwoofer contribution for each audio object. Embodiments of the bass management system and method are used to maintain the correct balance of the bass reproduced by the subwoofer relative to the sound coming out of the other speakers. The system and method are useful for a variety of different speaker configurations, including speaker configurations having different speaker sub-zones. Power-normalized gain coefficients for each speaker are combined and the power of the combined gain coefficients is computed and used to obtain a power-preserving subwoofer contribution coefficient. This subwoofer contribution coefficient is applied to the bass portion of the audio signal and audio objects to determine the contribution of a particular subwoofer.

Systems and methods of audio reproduction are described. In one embodiment, one or more processors can be configured, for example, to receive an L channel signal and an R channel signal, to combine the L channel signal and the R channel signal, to average the combined signal, to detect an impulse signal in the averaged signal, to multiply the impulse signal, to scale the multiplied impulse signal, and to add the scaled impulse signal to the averaged signal to form a resultant signal. Sound can be generated, for example, by speakers based on at least the resultant signal.

Headphones for stereo tactile vibration, and related systems and methods are disclosed. A headphone comprises a first speaker assembly including a first audio driver and a first tactile bass vibrator. The headphone also comprises a second speaker assembly including a second audio driver and a second tactile bass vibrator. The headphone further comprises a signal processing circuit configured to generate a first tactile vibration signal and a second tactile vibration signal from an audio signal to be received by the headphone. The first tactile vibration signal differs from the second tactile vibration signal. A method of operating the headphone includes generating the first tactile vibration signal and the second tactile vibration signal, and driving vibration of the first and second tactile bass vibrators with the first and second tactile vibration signals, respectively. A stereo tactile vibrator system includes the headphone.

Various implementations include audio systems and methods for mixed rendering to enhance audio output. Certain implementations include an audio system having: at least one far-field speaker configured to output a first portion of an audio signal; and a pair of non-occluding near-field speakers configured to output a second portion of the audio signal in synchrony with the output of the first portion of the audio signal, where the second portion of the audio signal increases intelligibility of the speech content within the audio signal.