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audio-manager-api.md

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AudioManager API

In addition to the standard android.media.AudioManager API, RICOH THETA V and Z1 support the following custom parameters. These parameters can be set using the 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" Ambisonics B-format (4ch)
"false" Monaural (1ch) 
AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
audioManager.setParameters("RicUseBFormat=true");

Microphone Selection

To configure the microphone selection, set a value for "RicMicSelect".

Value Description
"RicMicSelectAuto" Auto
"RicMicSelectInternal" Internal Mic
"RicMicSelectExternal" External Mic*1

*1 RICOH THETA V only

AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
mAudioManager.setParameters("RicMicSelect=RicMicSelectAuto");

Microphone Gain

To set the microphone gain, set a value for "RicMicSurroundVolumeLevel".

Value Description
"RicMicSurroundVolumeLevelNormal" Normal gain
"RicMicSurroundVolumeLevelLarge" Low gain for a loud environment 
AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
mAudioManager.setParameters("RicMicSurroundVolumeLevel=RicMicSurroundVolumeLevelNormal");