Audio enhancement for head-mounted speakers
First Claim
1. A method, comprising:
- receiving an input audio signal comprising a left input channel and a right input channel;
generating a spatially enhanced left channel and a spatially enhanced right channel by gain adjusting side subband components and mid subband components of the left and right input channels;
generating a left crosstalk channel by filtering and time delaying the left input channel;
generating a right crosstalk channel by filtering and time delaying the right input channel;
generating a left output channel by mixing the spatially enhanced left channel and the right crosstalk channel; and
generating a right output channel by mixing the spatially enhanced right channel and the left crosstalk channel.
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Abstract
Embodiments herein are primarily described in the context of a system, a method, and a non-transitory computer readable medium for producing a sound with enhanced spatial detectability and a crosstalk simulation. The audio processing system receives a left and right input channel of an audio input signal, and performs an audio processing to generate an output audio signal. The system generates left and right spatially enhanced signals by gain adjusting side subband components and mid subband components of the left and right input channels. The audio processing system generates left and right crosstalk channels such as by applying a filter and time delay to the left and right input channels, and mixes the spatially enhanced channels with the crosstalk channels. In some embodiments, the system includes high/low frequency enhancement channels and passthrough channels derived from the input channels, which can be mixed with the output audio signal.
17 Citations
20 Claims
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1. A method, comprising:
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receiving an input audio signal comprising a left input channel and a right input channel; generating a spatially enhanced left channel and a spatially enhanced right channel by gain adjusting side subband components and mid subband components of the left and right input channels; generating a left crosstalk channel by filtering and time delaying the left input channel; generating a right crosstalk channel by filtering and time delaying the right input channel; generating a left output channel by mixing the spatially enhanced left channel and the right crosstalk channel; and generating a right output channel by mixing the spatially enhanced right channel and the left crosstalk channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An audio processing system, comprising:
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a subband spatial enhancer configured to generate a spatially enhanced left channel and a spatially enhanced right channel by gain adjusting side subband components and mid subband components of a left input channel and a right input channel; a crosstalk simulator configured to; generate a left crosstalk channel by filtering and time delaying the left input channel; and generate a right crosstalk channel by filtering and time delaying the right input channel; and a mixer configured to; generate a left output channel by mixing the spatially enhanced left channel and the right crosstalk channel; and generate a right output channel by mixing the spatially enhanced right channel and the left crosstalk channel. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A non-transitory computer readable medium configured to store program code, the program code comprising instructions that when executed by a processor cause the processor to:
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receive an input audio signal comprising a left input channel and a right input channel; generate a spatially enhanced left channel and a spatially enhanced right channel by gain adjusting side subband components and mid subband components of the left and right input channels; generate a left crosstalk channel by filtering and time delaying the left input channel; generate a right crosstalk channel by filtering and time delaying the right input channel; generate a left output channel by mixing the spatially enhanced left channel and the right crosstalk channel; and generate a right output channel by mixing the spatially enhanced right channel and the left crosstalk channel.
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Specification