Gemini 3.1 Flash Live exhibits a serious set of issues on TTS requests, which become progressively worse the longer the audio is. It becomes noticable around the 1 minute mark, often before, and quickly degrades from that point onwards. The volume begins to drop, the quality of the audio and voice begins to drop and the voice itself progressively changes. These things all happen in combination to terrible effect. This is not an isolated issue either it seems, as I have seen other reports of this online. This issue has been consistent for us since launch on every TTS request.
I’m really surprised Google has released the model in this state. I also noticed the temperature setting is bugged when set below 0.6 - the TTS is never returned.
Is Google aware of these issues? Any ETA on a fix being released?
I have attached an example of the issue below.