text to speech synthesis app with Web Speech API

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This is an example of web speech API application which mixed with Javascript.
I learned this tutorial from Traversy Media Youtube. click here

And my GitHub code here

Step1:
the layout of this site is based on Bootstrap4
bootstrap css

bootstrap script
Copy the link from bootstrap website.

 Step2:
HTML
html
There are four form-groups inside of content. 
layout
Step3:
JS
initial DOM




According to what is typing in the textarea and then select the option lang name, it trigger the web speech API. And also the pitch and rate are changable within the range.

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