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audio-manager-api.md

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AudioManager API

In addition to android.media.AudioManager standard API, RICOH THETA V and Z1 support some specified parameters as listed below. These parameters can be set using AudioManager.setParameters API.

B-format Selection

To set B-format selection, set value for "RicUseBFormat". If you use microphone with Android standard APIs, call setParameters("RicUseBFormat=false") before using microphone.

Value Description
"true" Recording in Ambisonics B-format (4ch)
"false" Recording in monaural (1ch) 
AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

audioManager.setParameters("RicUseBFormat=true");

Microphone Selection

To set microphone selection, set value for "RicMicSelect".

Value Description
"RicMicSelectAuto" Auto
"RicMicSelectInternal" Internal Mic
"RicMicSelectExternal" External Mic (RICOH THETA V only) 
AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

mAudioManager.setParameters("RicMicSelect=RicMicSelectAuto");

Microphone Gain

To set microphone gain, set the value for "RicMicSurrondVolumeLevel".

Value Description
"RicMicSurroundVolumeLevelNormal" Normal Mode
"RicMicSurroundVolumeLevelLarge" Loud Mode (low gain) 
AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

mAudioManager.setParameters("RicMicSurroundVolumeLevel=RicMicSurroundVolumeLevelNormal");