Fix audio record pre-processing am: 6d7b330c27 am: 407aef91b8 am: b6a347a67f am: 945e06d5a2 am: 2a5e20405b am: 1148a857dc am: afde4408ee
am: 4a9955cb7a

Change-Id: I45261138ec8f05637f3338a588ba9ef3ffacb37c