Stereo and filter control for multi-speaker device
First Claim
1. A portable electronic device comprising:
- at least four speaker components, each speaker component being spaced apart from the remaining speaker components;
an audio source configured to provide content that includes a left audio signal and a right audio signal;
an orientation sensor configured to sense the orientation of the portable electronic device;
an audio processor coupled to the audio source, the audio processor configured to attenuate a high frequency portion of each of the left audio signal and the right audio signal using a cutoff frequency based at least in part on the orientation of the portable electronic device to provide a processed left audio signal and a processed right audio signal; and
an audio router configured to direct the left audio signal to only a first speaker component, to direct the right audio signal to only a second speaker component, to direct the processed left audio signal to a third speaker component, and to direct the processed right audio signal to a fourth speaker component, where the audio signals are directed to speaker components selected according to the orientation of the portable electronic device.
1 Assignment
0 Petitions
Accused Products
Abstract
A portable electronic device includes at least four speakers spaced apart from one another. An audio processor attenuates a high frequency portion of a left audio signal and a right audio signal to provide a processed left audio signal and a processed right audio signal. An audio router directs the left audio signal to only a first speaker, the right audio signal to only a second speaker, the processed left audio signal to a third speaker, and the processed right audio signal to a fourth speaker. The audio signals may be directed according to the orientation of the device. The cutoff frequency for attenuating the high frequency portion of the audio signals may be responsive to the orientation of the device. In other embodiments, the high frequency portion of the audio signals may be decorrelated to produce signals with high frequency portions for all speakers.
11 Citations
24 Claims
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1. A portable electronic device comprising:
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at least four speaker components, each speaker component being spaced apart from the remaining speaker components; an audio source configured to provide content that includes a left audio signal and a right audio signal; an orientation sensor configured to sense the orientation of the portable electronic device; an audio processor coupled to the audio source, the audio processor configured to attenuate a high frequency portion of each of the left audio signal and the right audio signal using a cutoff frequency based at least in part on the orientation of the portable electronic device to provide a processed left audio signal and a processed right audio signal; and an audio router configured to direct the left audio signal to only a first speaker component, to direct the right audio signal to only a second speaker component, to direct the processed left audio signal to a third speaker component, and to direct the processed right audio signal to a fourth speaker component, where the audio signals are directed to speaker components selected according to the orientation of the portable electronic device. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A audio management system comprising:
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an orientation sensor configured to sense the orientation of a portable electronic device that includes at least four spaced apart speaker components; an audio processor coupled to an audio source that provides content that includes a left audio signal and a right audio signal, the audio processor configured to attenuate a high frequency portion of each of the left audio signal and the right audio signal using a cutoff frequency based at least in part on the orientation of the portable electronic device to provide a processed left audio signal and a processed right audio signal; and an audio router configured to direct the left audio signal to only a first speaker component, to direct the right audio signal to only a second speaker component, to direct the processed left audio signal to a third speaker component, and to direct the processed right audio signal to a fourth speaker component, where the audio signals are directed to speaker components selected according to the orientation of the portable electronic device. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A portable electronic device comprising:
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at least four speaker components, each speaker component being spaced apart from the remaining speaker components; means for sensing the orientation of the portable electronic device; means for providing content that includes a left audio signal and a right audio signal; means for attenuating a high frequency portion of each of the left audio signal and the right audio signal using a cutoff frequency based at least in part on the orientation of the portable electronic device to provide a processed left audio signal and a processed right audio signal; and means for directing the left audio signal to only a first speaker component, directing the right audio signal to only a second speaker component, directing the processed left audio signal to a third speaker component, and directing the processed right audio signal to a fourth speaker component, wherein the audio signals are directed to speaker components selected according to the orientation of the portable electronic device. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A portable electronic device comprising:
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an orientation sensor configured to sense the orientation of the portable electronic device; an audio source configured to provide an audio signal that includes one or more channels; for each of the one or more channels, a plurality of speaker components for producing sound from the channel, each speaker component being spaced apart from the remaining speaker components; and a low-pass filter to produce a low frequency portion of the channel using a cutoff frequency based at least in part on the orientation of the portable electronic device; an audio router configured to direct each of the one or more channels to only one of the plurality of speaker components for producing sound from the channel, and to direct the low frequency portion of each of the one or more channel to the remaining of the plurality of speaker components for producing sound from the channel, where the one or more channels are directed to speaker components selected according to the orientation of the portable electronic device. - View Dependent Claims (20)
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21. A portable electronic device comprising:
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an orientation sensor configured to sense the orientation of the portable electronic device; an audio source configured to provide an audio signal that includes one or more channels; for each of the one or more channels, a plurality of speaker components for producing sound from the channel, each speaker component being coupled to an output of one of a plurality of speaker mixers, each speaker component being spaced apart from the remaining speaker components; and a low-pass filter to produce a low frequency portion of the channel that is coupled to a first input of each of the plurality of speaker mixers, a high-pass filter to produce a high frequency portion of the channel; a decorrelation engine coupled to the high-pass filter for each of the one or more channels, the decorrelation engine to produce a plurality of decorrelated high frequency signals; an audio router configured to couple each of the plurality of decorrelated high frequency signals to a second input of each of the plurality of speaker mixers for each of the one or more channels, where the plurality of decorrelated high frequency signals are coupled to speaker mixers selected according to the orientation of the portable electronic device. - View Dependent Claims (22, 23, 24)
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Specification