Realtime API Accent Consistency

Hello, I am using a system prompt with the Realtime API to define a British accent. This seems to work however it is very inconsistent. When establishing a new connection, around 40% of responses adhere to the accent, where as the others default the American English accent for the Ash voice. In other cases the greeting is in the correct accent, however then subsequent responses revert to the American accent. Does anyone have any tips on how to maintain accent consistency? Thanks in advance.

did you solve the issue? im getting simular problems using gpt-realtime

I found the inconsistency was due to my system instructions pushing the maximum context window, I had a very large instruction file and several turns into the conversation the accent was lost. I used the OpenAI Realtime API cookbook to consolidate my instructions and I now find the accent consistency is much better. Try with a very small instruction file as a test and see if it solves your issue. Hope this helps.