commit b52afc8acba0896e8f35d86e75a730d7d009b09d
author Eric Laurent <elaurent@google.com> Fri Jan 18 15:12:57 2013 -0800
committer Eric Laurent <elaurent@google.com> Tue Jan 22 17:10:39 2013 -0800
tree 601ef9c0108b4544eef1f23d7c4a44acd6576482
parent 939ce33a8ecb89dd220def7fc8beccd5680ea070

audio: added support for dual mic capture.

Added support for simultaneous capture from front and back
mics.

Noise suppression is turned off when capturing from front and back
mics and the input source is voice recognition.

Change-Id: I1750f2634bfa75f611dfded0ca21a295c752a836

audio_policy.conf

diff --git a/audio_policy.conf b/audio_policy.conf
index 73bf4ba..1f827cc 100644
--- a/audio_policy.conf
+++ b/audio_policy.conf
@@ -47,7 +47,7 @@
     inputs {
       primary {
         sampling_rates 8000|11025|16000|22050|32000|44100|48000
-        channel_masks AUDIO_CHANNEL_IN_MONO|AUDIO_CHANNEL_IN_STEREO
+        channel_masks AUDIO_CHANNEL_IN_MONO|AUDIO_CHANNEL_IN_STEREO|AUDIO_CHANNEL_IN_FRONT_BACK
         formats AUDIO_FORMAT_PCM_16_BIT
         devices AUDIO_DEVICE_IN_BUILTIN_MIC|AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET|AUDIO_DEVICE_IN_WIRED_HEADSET
       }