Microphone array with automated adaptive beam tracking

1. A method, comprising:

detecting loudspeaker characteristic information of at least one loudspeaker, of a plurality of loudspeakers, providing an acoustic stimulus;

modifying, via a central controller, based on the acoustic stimulus, at least one control function associated with at least one microphone and the at least one loudspeaker to minimize acoustic feedback produced by the at least one loudspeaker;

outputting, from each loudspeaker of the plurality of loudspeakers, the acoustic stimulus, at a known signal level, one loudspeaker zone at a time, wherein each loudspeaker zone comprises one or more of the least one loudspeaker; and

determining a delay for each combination of the at least one microphone and the each loudspeaker of the plurality of loudspeakers.

2. The method of claim 1 , wherein the at least one control function comprises at least one of:

output frequencies of the at least one loudspeaker,

loudspeaker power levels of the at least one loudspeaker,

input frequencies of the at least one microphone,

power levels of the at least one microphone, and

a delay associated with the at least one microphone and the at least one loudspeaker, to reduce the acoustic feedback produced by the at least one loudspeaker.

3. The method of claim 1 , further comprising:

increasing an acoustic gain or decreasing an acoustic gain responsive to receiving the acoustic stimulus and the loudspeaker characteristic information.

4. The method of claim 3 , wherein the acoustic gain comprises a function of a difference between a level of the acoustic stimulus processed as output by a digital signal processor and the level of the acoustic stimulus received at the at least one microphone.

5. The method of claim 1 , further comprising:

detecting the acoustic stimulus via active beams associated with the at least one microphone disposed in a defined space.

6. The method of claim 1 , further comprising:

performing an acoustic gain measurement for each combination of the at least one microphone and the plurality of loudspeakers.

7. The method of claim 6 , further comprising:

determining whether the acoustic gain is less than a predefined threshold value; and

when the acoustic gain is less than the predefined threshold value, setting a feedback decay rate based on the acoustic gain to minimize the acoustic feedback.

8. The method of claim 1 , wherein the at least one microphone comprises one or more microphone arrays configured to detect the loudspeaker characteristic information.

9. An apparatus, comprising:

a processor configured to:

detect loudspeaker characteristic information of at least one loudspeaker, of a plurality of loudspeakers, providing an acoustic stimulus;

modify, via a central controller, based on the acoustic stimulus, at least one control function associated with at least one microphone and the at least one loudspeaker to minimize acoustic feedback produced by the at least one loudspeaker

output, from each loudspeaker of the plurality of loudspeakers, the acoustic stimulus, at a known signal level, one loudspeaker zone at a time, wherein each loudspeaker zone comprises one or more of the least one loudspeaker; and

determine a delay for each combination of the at least one microphone and the each loudspeaker of the plurality of loudspeakers.

10. The apparatus of claim 9 , wherein the at least one control function comprises at least one of:

output frequencies of the at least one loudspeaker,

loudspeaker power levels of the at least one loudspeaker,

input frequencies of the at least one microphone,

power levels of the at least one microphone, and

a delay associated with the at least one microphone and the at least one loudspeaker, to reduce the acoustic feedback produced by the at least one loudspeaker.

11. The apparatus of claim 9 , wherein the processor is further configured to:

increase an acoustic gain or decreasing an acoustic gain responsive to receiving the acoustic stimulus and the loudspeaker characteristic information.

12. The apparatus of claim 11 , wherein the acoustic gain comprises a function of a difference between a level of the acoustic stimulus processed as output by a digital signal processor and the level of the acoustic stimulus received at the at least one microphone.

13. The apparatus of claim 9 , wherein the processor is further configured to:

detect the acoustic stimulus via active beams associated with the at least one microphone disposed in a defined space.

14. The apparatus of claim 9 , wherein the processor is further configured to:

perform an acoustic gain measurement for each combination of the at least one microphone and the plurality of loudspeakers.

15. The apparatus of claim 14 , wherein the processor is further configured to:

determine whether the acoustic gain is less than a predefined threshold value, and when the acoustic gain is less than the predefined threshold value; and

set a feedback decay rate based on the acoustic gain to minimize the acoustic feedback, and

wherein the at least one microphone comprises one or more microphone arrays configured to detect the loudspeaker characteristic information.

16. A non-transitory computer readable storage medium configured to store at least one instruction that when executed by a processor causes the processor to perform:

detecting loudspeaker characteristic information of at least one loudspeaker, of a plurality of loudspeakers, providing an acoustic stimulus;

modifying, via a central controller, based on the acoustic stimulus, at least one control function associated with at least one microphone and the at least one loudspeaker to minimize acoustic feedback produced by the at least one loudspeaker;

outputting, from each loudspeaker of the plurality of loudspeakers, the acoustic stimulus, at a known signal level, one loudspeaker zone at a time, wherein each loudspeaker zone comprises one or more of the least one loudspeaker; and

determining a delay for each combination of the at least one microphone and the each loudspeaker of the plurality of loudspeakers.

17. The non-transitory computer readable storage medium of claim 16 , wherein the at least one control function comprises:

at least one of output frequencies of the at least one loudspeaker,

loudspeaker power levels of the at least one loudspeaker,

input frequencies of the at least one microphone,

power levels of the at least one microphone, and

a delay associated with the at least one microphone and the at least one loudspeaker, to reduce the acoustic feedback produced by the at least one loudspeaker.

18. The non-transitory computer readable storage medium of claim 16 , further configured to store at least one instruction that when executed by the processor causes the processor to perform:

increasing an acoustic gain or decreasing an acoustic gain responsive to receiving the acoustic stimulus and the loudspeaker characteristic information.

19. The non-transitory computer readable storage medium of claim 18 , wherein the acoustic gain comprises a function of a difference between a level of the acoustic stimulus processed as output by a digital signal processor and the level of the acoustic stimulus received at the at least one microphone.

20. The non-transitory computer readable storage medium of claim 15 , further configured to store at least one instruction that when executed by the processor causes the processor to perform:

performing an acoustic gain measurement for each combination of the at least one microphone and the plurality of loudspeakers;

determining whether the acoustic gain is less than a predefined threshold value; and

when the acoustic gain is less than the predefined threshold value, setting a feedback decay rate based on the acoustic gain to minimize the acoustic feedback, wherein the at least one microphone comprises one or more microphone arrays configured to detect the loudspeaker characteristic information.