Using AkAudioSessionCategoryPlayback for iOS throws errors

Question

Hi! I'm stuck on trying to using AkAudioSessionCategoryPlayback on iOS with Unity 2020.2.7f1 - I know it exists in the SDK: https://www.audiokinetic.com/library/edge/?source=SDK&id=_aki_o_s_sound_engine_8h_a45868714def93979efd2a766660de8e0.html

I do see the Playback category when I look in the SDK for Wwise 2021.1.3 (the version we're using) in the AkiOSSoundEngine.h file, but it is not in the AKiOSSettings.cs file within /Assets/Wwise/API/Runtime/Handwritten/iOS/AkiOSSettings.cs line 52 is missing the Playback option.

And when I tried to manually set the category to Playback, I got this issue in XCode - 2021-10-13 14:35:59.573033-0700 abra[63427:20813518] AK Error: Failed to set audio session category.: Error: Error Domain=NSOSStatusErrorDomain Code=2003329396 "(null)". This seems to imply that it's an Apple issue, and not on the Wwise side.

Wondering if anyone might know how to get the AkAudioSessionCategoryPlayback to work - the use case is getting Wwise audio to play while the app is in the background or the screen is off for a game that is primarily played through audio.

Comments

Could you solve this issue?

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Where you able to solve your issue, Jenny? We are facing the same challenge of making the app play audio while in background with screen off.