C++/GGML based Fish Audio S2 Pro in audio.cpp. 3x faster than real time

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1. Is this request related to a challenge you're experiencing? Tell us your story.

Measured on RTX 5090:

Warmed requests run about 3.1x-3.4x faster than real time. Longform (6000+ chars) runs about 3.3x faster than real time.

Try it at https://github.com/0xShug0/audio.cpp

2. What is your suggested solution?

N/A

3. Additional context or comments

No response

4. Can you help us with this feature?

• I am interested in contributing to this feature.