Controls the capacity of the Flite synthesized speechbuffer upon initialization of the Flite text to speech submix listener. The buffer will hold chunks of streamed, synthesized speech data. The larger the size the capacity of the buffer, the more audio data can be synthesized at once for playback and the more memory the buffer will take up. It's recommeneded to keep the value greater than 256 and less than 1024.
Usage
TextToSpeech.Flite.SpeechBufferCapacity [value]
Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.