Change IVR TTS voice

I am having a challenge changing the voice for TTS. I have stopped the gateway and changed it in that section and restarted it. I have also gone into the speech part of control panel to change the default voice there just in case. Neither change the voice in my outbound broadcast. Have I missed something?

which TTS voice do you use?

Paul and Kate. I can switch to either but I have changed it to Paul but it was on Kate when I created the script and first sent the broadcast. Now when I change it in both the speech section of control panel and the gateway it still broadcasts in Kate

For IVR Studio generated outbound applications, the text-to-speech items are converted to audio files at the time of gateway deployment. This can dramatically reduce rumtime, especially when you have a large amount of simultaneous calls. To change the TTS voice, just re-deploy the IVR app again.

Ok that worked. I removed it from the gateway and redeployed it. When I redeployed without deleting it there was no change