Update README.md

README.md

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 This repository provides all the necessary tools to perform audio source separation with a [SepFormer](https://arxiv.org/abs/2010.13154v2) 
 model, implemented with SpeechBrain, and pretrained on Libri3Mix dataset. For a better experience we encourage you to learn more about
-[SpeechBrain](https://speechbrain.github.io). The model performance is 19.8 dB SI-SNRi on the test set of Libri3Mix dataset.
+[SpeechBrain](https://speechbrain.github.io).
 
 | Release | Train-Set SI-SNRi | Test-Set SI-SNRi |
 |:-------------:|:--------------:|:--------------:|