Crosstalk cancellation for opposite-facing transaural loudspeaker systems
AssigneeBoomcloud 360, Inc.
InventorsZachary Seldess, Joseph Mariglio
Life of this patent
Estimating the term…
Abstract
Embodiments relate to audio processing for opposite facing speaker configurations that results in multiple optimal listening regions around the speakers. A system includes a left speaker and a right speaker in an opposite facing speaker configuration, and a crosstalk cancellation processor connected with the left speaker and the right speaker. The crosstalk cancellation processor applies a crosstalk cancellation to an input audio signal to generate left and right output channels. The left output channel is provided to the left speaker and the right output channel is provided to the right speaker to generate sound including multiple crosstalk cancelled listening regions that are spaced apart.
Claims20
A system for audio processing, comprising:
- a left speaker and a right speaker addressing outward with respect to each other;
- a subband spatial processor configured to:
- receive an input audio signal comprising a left channel and a right channel;
- apply first gains to mid subband components of a mid component of the left channel and the right channel to generate an enhanced mid component;
- apply second gains to side subband components of a side component of the left channel and the right channel to generate an enhanced side component;
- and
- generate a left enhanced channel and a right enhanced channel using the enhanced mid component and the enhanced side component;
- and
- a crosstalk cancellation processor coupled to the subband spatial processor, the left speaker, and the right speaker, the crosstalk cancellation processor configured to:
- generate a left output channel and a right output channel based upon a left crosstalk cancellation component, the left enhanced channel;
- a right crosstalk cancellation component, and the right enhanced channel;
- and
- provide the left output channel to the left speaker and the right output channel to the right speaker to generate a sound providing a plurality of crosstalk cancelled listening regions that are spaced apart, the sound including a monofill region in between a first crosstalk cancelled listening region of the plurality of crosstalk cancelled listening regions and a second crosstalk cancelled listening region of the plurality of crosstalk cancelled listening regions.
A non-transitory computer readable medium comprising stored instructions, wherein the stored instructions, when executed by a processor, cause the processor to:
- receive an input audio signal comprising a left channel and a right channel;
- apply first gains to mid subband components of a mid component of the left channel and the right channel to generate an enhanced mid component;
- apply second gains to side subband components of a side component of the left channel and the right channel to generate an enhanced side component;
- and
- generate a left enhanced channel and a right enhanced channel using the enhanced mid component and the enhanced side component;
- generate a left output channel and a right output channel based upon a left crosstalk cancellation component, the left enhanced channel, a right crosstalk cancellation component, and the right enhanced channel;
- and
- provide the left output channel to a left speaker and the right output channel to a right speaker to generate a sound providing a plurality of crosstalk cancelled listening regions that are spaced apart, the left speaker and the right speaker addressing outward with respect to each other, the sound including a monofill region in between a first crosstalk cancelled listening region of the plurality of crosstalk cancelled listening regions and a second crosstalk cancelled listening region of the plurality of crosstalk cancelled listening regions.
A method comprising:
- receiving an input audio signal comprising a left channel and a right channel;
- applying first gains to mid subband components of a mid component of the left channel and the right channel to generate an enhanced mid component;
- applying second gains to side subband components of a side component of the left channel and the right channel to generate an enhanced side component;
- and
- generating a left enhanced channel and a right enhanced channel using the enhanced mid component and the enhanced side component;
- generating a left output channel and a right input channel based upon a left crosstalk cancellation component, the left enhanced channel, a right crosstalk cancellation component, and the right enhanced channel;
- and
- providing the left output channel to a left speaker and the right output channel to a right speaker to generate a sound providing a plurality of crosstalk cancelled listening regions that are spaced apart, the sound including a monofill region in between a first crosstalk cancelled listening region of the plurality of crosstalk cancelled listening regions and a second crosstalk cancelled listening region of the plurality of crosstalk cancelled listening regions.
Dependencies are inferred from the claim text.