Matched and equalized microphone output of automotive microphone systems
AssigneeHarman Becker Automotive Systems GmbH
InventorsViktor Dobos, Peter Atilla Kardos
Life of this patent
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Abstract
A vehicle microphone system may include at least two microphones forming a microphone array, at least one loudspeaker configured to emit audio signals. a processor coupled to a memory and programmed to receive incoming audio signals from the microphone array, determine at least one parameter for each channel of the microphone array, determine at least one filter to apply to at least one channel based on a difference between the parameters of each channel, and store the at least one filter in the memory.
Claims17
A vehicle microphone system, comprising:
- at least two microphones forming a microphone array;
- at least one loudspeaker configured to emit audio signals;
- a processor coupled to a memory and programmed to:
- receive incoming audio signals from the microphone array;
- determine at least one parameter for each channel of the microphone array;
- determine at least one filter to apply to at least one channel based on a difference between at least one the parameter for each channel, wherein the at least one filter is configured to adjust the at least one parameter of an associated channel to decrease the difference between the at least one parameter for each channel;
- and
- store the at least one filter in the memory.
A method for decreasing differences between microphone parameters within a vehicle microphone system, comprising:
- receiving incoming audio signals from a vehicle microphone array;
- determining at least one parameter for each channel of the microphone array;
- determining at least one filter to apply to at least one of the channels to adjust the at least one parameter of an associated channel based on a difference between the at least one parameter of each channel;
- and
- storing the at least one filter in a memory.
A non-transitory computer-readable medium including instructions for decreasing the differences between microphone parameters within a vehicle microphone system, comprising:
- receiving incoming audio signals from a vehicle microphone array;
- determining at least one parameter for each channel of the microphone array;
- determining at least one filter to apply to at least one channel to adjust the at least one parameter of an associated channel based on a difference between the at least one parameter of each channel;
- and
- storing the at least one filter in a memory.
Dependencies are inferred from the claim text.