Remove echo effect when recording using Mic

[girishagsft]

I am getting echo effect when recording from Mic. But when record using only instruments, it's don't have any echo effect. How to remove echo effect. Attached sample file.
Recording.m4a.zip

[jayrhynas]

Did you copy and paste the code from TAAESample? There are delay and bandpass units that process the mic input (see AEAudioController.m:191)