Fix audio record pre-processing am: 6d7b330c27 am: 407aef91b8 am: b6a347a67f am: 945e06d5a2 am: 2a5e20405b am: 1148a857dc am: afde4408ee
am: 8e1d0d55cf

Change-Id: I8a6d941523a9204e273f935de906829e37ed8894