13. The method as recited in claim 12 , wherein the delay is associated with a first time at which the first microphone captured the second sound and a second time at which the second microphone captured the second sound, the delay corresponding to a synchronization between the first microphone and the second microphone, and further comprising: determining an amount of the delay based at least partly on a length of the first adaptive filter.
13. The method as recited in claim 12 , wherein the delay is associated with a first time at which the first microphone captured the second sound and a second time at which the second microphone captured the second sound, the delay corresponding to a synchronization between the first microphone and the second microphone, and further comprising: determining an amount of the delay based at least partly on a length of the first adaptive filter. 14. The method as recited in claim 13 , further comprising adjusting the amount of the delay based at least in part on at least one of the target voice estimate or the noise estimate.