Support for Voice Models

[briansproule20]

integrate echo with eleven labs AI voice design and open ai's whisper, allowing for full back and forth audio conversations on echo apps

https://elevenlabs.io/voice-design

[Trynax]

I'm actually working on a project that needs this exact feature, I'm currently taking a shot at implementing it if that would be helpful (shouldn't stop any real work, might not be able to do it idk).