Amazon Polly is ranked 2nd in Text-To-Speech Services while IBM Watson Text To Speech is ranked 4th in Text-To-Speech Services. Amazon Polly is rated 7.0, while IBM Watson Text To Speech is rated 0.0. The top reviewer of Amazon Polly writes "A text to spoken audio solution with a realistic neural voice feature, but the price could be better". On the other hand, Amazon Polly is most compared with Google Cloud Text-to-Speech and Microsoft Azure Speech Service, whereas IBM Watson Text To Speech is most compared with Google Cloud Text-to-Speech.
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