Amazon Polly is a service that turns text into lifelike speech, allowing you to create applications that talk, and build entirely new categories of speech-enabled products. Polly's Text-to-Speech (TTS) service uses advanced deep learning technologies to synthesize natural sounding human speech.
WaveNet technology represents a new way of creating synthetic speech. It synthesizes speech with more human-like emphasis and inflection on syllables, phonemes, and words. This technology is used to produce speech for Google Assistant, Google Search, and Google Translate.
Dialogflow is a natural language understanding platform used to design and integrate a conversational user interface into mobile apps, web applications, devices, bots, interactive voice response systems, and so on. Dialogflow runs on Google Cloud Platform, letting you scale to hundreds of millions of users.
IBM Watson is an ecosystem of services based on advanced NLP (Natural Language Processing) algorithms. One of the blocks of this ecosystem is the Watson Voice Agent which allows Watson to speak with people.
Service allows to recognize or voice any text in several languages. SpeechKit is the power behind Alice, the Yandex voice assistant.
Tinkoff VoiceKit features deep neural network models for speech recognition and synthesis and is used to create a financial voice assistant called Oleg.