How can we capturing audio in a different rate than real-time?

Question

Hi,

We're have the ability to start/stop video capture of our game with just a button press. We want to be able to capture audio output to match.

The problem is that while we capture video, the game is running in a much lower frame-rate due to encoding. To get nice videos, we single-step our simulation with a 60Hz delta-time and capture each frame, i.e. run the game in fixed frame-rate mode. So while the rendering/encoding can run at a very low frame-rate, we can still output a perfect 60Hz video. Now we want to do the same with audio, but the output from SoundEngine::StartOutputCapture() records the audio in real-time which does not match the video.

I found that we could set AkInitSettings::bUseLEngineThread to false, which seemed like a good start, but since SoundEngine::RenderAudio() does not take any paramaters, I couldn't find a way to set a delta time or anything like that.

Can this be solved with Wwise?

Jens