Text to speech (TTS) is the process by which text can be converted into its spoken equivalent by a synthesized voice. This generally happens by employing software applications or web services. The result of this process can be heard via any sound card (las it happens with screen readers), or recorded to audio files for later consumption.
Text to speech is used across a very wide range of applications: from voice assistants to GPS applications, through PBX systems, conference servers, and whatever scenario may require adding speech to different types of content.
With regards to accessibility, TTS plays a critical role: it powers certain assistive technologies (screen readers, reading AIDS, etc.), but it can also be used to improve the accessibility of different types of content (media and gaming apps, videos, etc.) by authors, designers and developers.
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Quoting its overview page, Amazon Polly is a cloud service offered by Amazon that lets you to “turn text into lifelike speech, allowing you to create applications that talk, and build entirely new categories of speech-enabled products”.
Read moreIn this video from Apple World Wide Developer Conference (WWDC) 2020 you can learn how to augment your app’s accessibility experience with speech synthesis: discover the best times and places to add speech APIs so that everyone who uses your app can benefit from their addition; learn how to use AVSpeechSynthesizer to complement assistive technologies like VoiceOver, and when to implement alternative APIs; understand how to route audio to the appropriate destination and create apps that integrate speech seamlessly for all users who need or want it.
Read moreThe AVSpeechSynthesizer class helps you produces synthesized speech from text and allows you to control and monitor the progress of ongoing speech. In this video from Apple World Wide Developer Conference (WWDC) 2018 you will learn the ins and outs of AVSpeechSynthesizer and how to add computer-generated speech output to your app.
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