docs: Initial import from localai-website (#1312)

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

docs/content/model-compatibility/vall-e-x.md

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+
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+disableToc = false
+title = "🆕 Vall-E-X"
+weight = 4
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+
+[VALL-E-X](https://github.com/Plachtaa/VALL-E-X) is an open source implementation of Microsoft's VALL-E X zero-shot TTS model.
+
+## Setup
+
+The backend will automatically download the required files in order to run the model.
+
+This is an extra backend - in the container is already available and there is nothing to do for the setup. If you are building manually, you need to install Vall-E-X manually first.
+
+## Usage
+
+Use the tts endpoint by specifying the vall-e-x backend:
+
+```
+curl http://localhost:8080/tts -H "Content-Type: application/json" -d '{         
+     "backend": "vall-e-x",
+     "input":"Hello!"
+   }' | aplay
+```
+
+## Voice cloning
+
+In order to use voice cloning capabilities you must create a `YAML` configuration file to setup a model:
+
+```yaml
+name: cloned-voice
+backend: vall-e-x
+parameters:
+  model: "cloned-voice"
+vall-e:
+  # The path to the audio file to be cloned
+  # relative to the models directory 
+  audio_path: "path-to-wav-source.wav"
+```
+
+Then you can specify the model name in the requests:
+
+```
+curl http://localhost:8080/tts -H "Content-Type: application/json" -d '{         
+     "backend": "vall-e-x",
+     "model": "cloned-voice",
+     "input":"Hello!"
+   }' | aplay
+```