Add method param
Add module and constant
Add method to create or send request
Improve save method to send request
Updata gemspec summary and description
Update gemspec dependency
Update gemspec homepage
Change Text2voice module to class
Change Text2voice lib/ module to class
Add speed param
Add method to save file wav
Fix typo
Delete speakers and emotions constant
Change save format
Change class name
Delete play method
Change spec.version name