10. The system as recited in claim 9 , wherein an amount of the delay is based on a length of the first adaptive filter, and wherein the operations further comprise adjusting the amount of the delay based at least in part on at least one of the target voice estimate or the noise estimate.
9. The system as recited in claim 5 , wherein the delay is associated with a first time at which the first microphone detects the second sound and a second time at which the second microphone detects the second sound, and wherein the operations further comprise: implementing the delay with respect to a synchronization between the first microphone and the second microphone.