AWS-Polly

• Polly is a service that turns text into lifelike speech.

• It supports Speech Synthesis Markup Language (SSML) tags like prosody so users can adjust the speech rate, pitch or volume.

• It is a secure service that delivers benefits at high scale and at low latency.

• Users can cache and replay Amazon Polly’s generated speech at no additional cost.

• Users can use Polly to power their application with high-quality spoken output.

• Users can synthesize speech for certain Neural voices using the Newscaster style, to make them sound like a TV or Radio newscaster.

• Users can detect when specific words or sentences in the text are being spoken to the user based on the metadata included in the audio stream.

• It generates Speech Marks using the following four elements: Sentence, Word, Viseme and SSML.

• It can be used in announcement systems in public transportation and industrial control systems for notifications and emergency announcements.

• Applications such as quiz games, animations, avatars or narration generation are common use-cases for cloud-based Text-to-speech solution like Polly.

• Cloud-based text-to-speech (Polly) is platform independent, so it minimizes development time and effort.

• It supports all the programming languages included in the AWS SDK (Java, Node.js, .NET, PHP, Python, Ruby, Go and C++) and AWS Mobile SDK (iOS/Android).

• It supports an HTTP API so users can implement their own access layer.

• It supports MP3, Vorbis and raw PCM audio stream formats.

• It is a HIPAA Eligible Service covered under the AWS Business Associate Addendum (AWS BAA).

• It makes it easy to request an additional stream of metadata with information about when particular sentences, words and sounds are being pronounced.

• It 's pay-per-use model means there are no setup costs. User can start small and scale up as their application grows.

• It provides simple API operations that users can easily integrate with their existing applications.

• It has a Neural TTS (NTTS) system that can produce even higher quality voices than its standard voices. The NTTS system produces the most natural and human-like text-to-speech voices possible.

• Neural voices aren't available in all AWS Regions, nor do they support all It features.

• It provides API operations that users can use to store lexicons in an AWS region.

• Lexicons give additional control over how Polly pronounces words uncommon to the selected language.

• The SynthesizeSpeech operation produces audio in near-real time, with relatively little latency in most cases.

• Polly's Asynchronous Synthesis feature overcomes the challenge of processing a larger text document by changing the way the document is both synthesized and returned.

• With the Polly plugin for WordPress, users can provide visitors to their WordPress website audio recordings of their content.