System and method for data augmentation for multi-microphone signal processing

1. A computer-implemented method, executed on a computing device, comprising:

receiving a signal from each microphone of a plurality of microphones, thus defining a plurality of signals; and

performing one or more inter-microphone gain-based augmentations on the plurality of signals, thus defining one or more inter-microphone gain-augmented signals, wherein performing the one or more inter-microphone gain-based augmentations on the plurality of signals includes applying a gain level from a plurality of gain levels to the signal from each microphone, and wherein the plurality of gain levels is based upon a maximum and minimum gain introduced by each microphone relative to the plurality of microphones.

2. The computer-implemented method of claim 1 , wherein applying the gain level from the plurality of gain levels to the signal from each microphone includes applying a gain level, from a predefined range of gain levels, to the signal from each microphone.

3. The computer-implemented method of claim 2 , wherein applying the gain level from the plurality of gain levels to the signal from each microphone includes applying a random gain level, from the predefined range of gain levels, to the signal from each microphone.

4. The computer-implemented method of claim 1 , wherein performing the one or more inter-microphone gain-based augmentations on the one or more signals includes converting the one or more signals to the frequency domain.

5. The computer-implemented method of claim 4 , wherein performing the one or more inter-microphone gain-based augmentations on the one or more signals includes applying a plurality of gain levels to a plurality of frequency bands of the one or more signals converted to the frequency domain.

6. The computer-implemented method of claim 1 , wherein performing the one or more inter-microphone gain-based augmentations on the one or more signals includes one or more of:

amplifying at least a portion of the one or more signals; and

attenuating at least a portion of the one or more signals.

7. A computer program product residing on a non-transitory computer readable medium having a plurality of instructions stored thereon which, when executed by a processor, cause the processor to perform operations comprising:

receiving a signal from each microphone of a plurality of microphones, thus defining a plurality of signals; and

performing one or more inter-microphone gain-based augmentations on the plurality of signals, thus defining one or more inter-microphone gain-augmented signals, wherein performing the one or more inter-microphone gain-based augmentations on the plurality of signals includes applying a gain level from a plurality of gain levels to the signal from each microphone, and wherein the plurality of gain levels is based upon a maximum and minimum gain introduced by each microphone relative to the plurality of microphones.

8. The computer program product of claim 7 , wherein applying the plurality of gain levels to the signal of each microphone includes applying a plurality of gain levels from a predefined range of gain levels to the signal from each microphone.

9. The computer program product of claim 8 , wherein applying the plurality of gain levels to the signal of each microphone includes applying a random gain level from the predefined range of gain levels to the signal from each microphone.

10. The computer program product of claim 7 , wherein performing the one or more inter-microphone gain-based augmentations on the one or more signals includes converting the one or more signals to the frequency domain.

11. The computer program product of claim 10 , wherein performing the one or more inter-microphone gain-based augmentations on the one or more signals includes applying a plurality of gain levels to a plurality of frequency bands of the one or more signals converted to the frequency domain.

12. The computer program product of claim 7 , wherein performing the one or more inter-microphone gain-based augmentations on the one or more signals includes one or more of:

amplifying at least a portion of the one or more signals; and

attenuating at least a portion of the one or more signals.

13. A computing system comprising:

a memory; and

a processor configured to receive a signal from each microphone of a plurality of microphones, thus defining a plurality of signals, and wherein the processor is further configured to perform one or more inter-microphone gain-based augmentations on the plurality of signals, thus defining one or more inter-microphone gain-augmented signals, wherein performing the one or more inter-microphone gain-based augmentations on the plurality of signals includes applying a gain level from a plurality of gain levels to the signal from each microphone, and wherein the plurality of gain levels is based upon a maximum and minimum gain introduced by each microphone relative to the plurality of microphones.

14. The computing system of claim 13 , wherein applying the plurality of gain levels to the signal of each microphone includes applying a plurality of gain levels from a predefined range of gain levels to the signal from each microphone.

15. The computing system of claim 14 , wherein applying the plurality of gain levels to the signal of each microphone includes applying a random gain level from the predefined range of gain levels to the signal from each microphone.

16. The computing system of claim 13 , wherein performing the one or more inter-microphone gain-based augmentations on the one or more signals includes converting the one or more signals to the frequency domain.

17. The computing system of claim 16 , wherein performing the one or more inter-microphone gain-based augmentations on the one or more signals includes applying a plurality of gain levels to a plurality of frequency bands of the one or more signals converted to the frequency domain.