Automated tuning by measuring and equalizing speaker output in an audio environment

1. A method, comprising:

identifying a plurality of speakers and microphones connected to a network controlled by a controller;

assigning a preliminary output gain to the plurality of speakers used to apply test signals;

measuring ambient noise detected from the microphones;

recording chirp responses from all microphones simultaneously based on the test signals;

deconvolving all chirp responses to determine a corresponding number of impulse responses; and

measuring average sound pressure levels (SPLs) of each of the microphones to obtain a SPL level based on an average of the SPLs.

2. The method of claim 1 , wherein the measuring ambient noise detected from the microphones comprises checking for excessive noise.

3. The method of claim 1 , comprising

for each microphone input signal, identify a main impulse peak; and

identify distance from one or more of the plurality of speakers to each microphone.

4. The method of claim 3 , comprising

determining frequency responses of each microphone input signal; and

applying a compensation value to each microphone based on the frequency responses.

5. The method of claim 4 , comprising

averaging the frequency responses to obtain a spatial average response; and

performing an automated equalization of the spatial average response to match a target response value.

6. The method of claim 1 , comprising

determining an attenuation value associated with the room based on the SPL level and a distance from nearest and furthest microphones.

7. The method of claim 6 , comprising

determining an output gain that provides a target sound level at an average distance of all microphones based on the SPL level and attenuation value.

8. An apparatus, comprising:

a processor configured to

identify a plurality of speakers and microphones connected to a network controlled by a controller;

assign a preliminary output gain to the plurality of speakers used to apply test signals;

measure ambient noise detected from the microphones;

record chirp responses from all microphones simultaneously based on the test signals;

deconvolve all chirp responses to determine a corresponding number of impulse responses; and

measure average sound pressure levels (SPLs) of each of the microphones to obtain a SPL level based on an average of the SPLs.

9. The apparatus of claim 8 , wherein the measured ambient noise detected from the microphones comprises the processor being configured to check for excessive noise.

10. The apparatus of claim 8 , wherein the processor is further configured to

for each microphone input signal, identify a main impulse peak; and

identify distance from one or more of the plurality of speakers to each microphone.

11. The apparatus of claim 8 , comprising

determine frequency responses of each microphone input signal; and

apply a compensation value to each microphone based on the frequency responses.

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

average the frequency responses to obtain a spatial average response; and

perform an automated equalization of the spatial average response to match a target response value.

13. The apparatus of claim 8 , wherein the processor is further configured to

determine an attenuation value associated with the room based on the SPL level and a distance from nearest and furthest microphones.

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

determine an output gain that provides a target sound level at an average distance of all microphones based on the SPL level and attenuation value.

15. A non-transitory computer readable storage medium configured to store instructions that when executed cause a processor to perform:

identifying a plurality of speakers and microphones connected to a network controlled by a controller;

assigning a preliminary output gain to the plurality of speakers used to apply test signals;

measuring ambient noise detected from the microphones;

recording chirp responses from all microphones simultaneously based on the test signals;

deconvolving all chirp responses to determine a corresponding number of impulse responses; and

measuring average sound pressure levels (SPLs) of each of the microphones to obtain a SPL level based on an average of the SPLs.

16. The non-transitory computer readable storage medium of claim 15 , wherein the measuring ambient noise detected from the microphones comprises checking for excessive noise.

17. The non-transitory computer readable storage medium of claim 15 , wherein the processor is further configured to perform:

for each microphone input signal, identify a main impulse peak; and

identify distance from one or more of the plurality of speakers to each microphone.

18. The non-transitory computer readable storage medium of claim 17 , wherein the processor is further configured to perform:

determining frequency responses of each microphone input signal; and

applying a compensation value to each microphone based on the frequency responses.

19. The non-transitory computer readable storage medium of claim 18 , wherein the processor is further configured to perform:

averaging the frequency responses to obtain a spatial average response; and

performing an automated equalization of the spatial average response to match a target response value.

20. The non-transitory computer readable storage medium of claim 15 , wherein the processor is further configured to perform:

determining an attenuation value associated with the room based on the SPL level and a distance from nearest and furthest microphones.