Editing State-of-the-art (section)

=== Contributors ===

Contributors: A list of contributors by contribution 

* Article Finkelstein et al.(2022): Chenyu Li
* Article Li et al.(2020): Chenyu Li
* Article Zang et al(2022): Chenyu Li
* Article Grimm et al.(2007): Yining Lei
* Article Z.Huang et al.(2014):Siqi Zheng
* Introduction: Chenyu Li
* Synthesis: All
==== Subsections: ====
The section ''Synthetically improving foreign-accented speech recognition'' was written by Maria Tepei.
<references />The section Accent Modification was written by Chenyu Li

The section Speech Separation was written by Sherry Yu-Ting Yeh

The section Speech Synthesis Evaluation was written by Brandi Hongell