Wwise SDK 2015.1.9

Device ID to use for the main audio output, as returned from AK::GetDeviceID or AK::GetDeviceIDFromName. This is usable only when the AkInitSettings.eMainOutputType is set to AkAPI_Wasapi or AkAPI_XAudio2 (or AkAPI_Default which selects XAudio2).

AkWinSoundEngine.h の 83 行で定義されています。