Text-to-Speech (TTS)

Text-to-Speech (TTS)

Text-to-Speech (TTS) is a technology that transforms text into audible speech. TTS is used in a number of different fields. For example, it’s used to develop speech assistants, navigation systems, e-learning courses, video games, and much more.

The Advantages of Text-to-Speech

  • You don’t need to rent a recording studio, hire an audio director, or perform additional audio processing.
  • The cost isn’t based on the number of voices (i.e. actors).
  • Artificially generating speech fragments takes less time than recording humans in a studio — it takes about 40 hours to produce 50 hours of professionally-processed speech (about fifty minutes per hour).
  • Corrections are basically free and can be reinserted into synthesized speech much more easily than retakes recorded by an actor.

Note: We don’t recommend using any form of TTS in big-budget games, videos, or ads with high requirements for sound quality, intonation, etc. Recording actors in a studio is still the best option for these projects.

Types of TTS

There are two different types of TTS: standard TTS and neural TTS. Standard TTS is used when the quality of the voice doesn’t have to be that high. In this case, incorrect word stress, unnatural intonation (or lack thereof), artificiality, and a certain “mechanical” quality are acceptable.

Neural TTS is a relatively new technology that transforms text into speech using a neural network. This makes it possible to achieve a more realistic imitation of a human voice — it sounds authentic, conveys simple emotions well, and avoid incorrect word stress. Only a professional can tell the difference between a voice generated by neural TTS from a human voice recorded in a studio.

Logrus IT has extensive experience working with TTS. We work with standard text-to-speech technology, as well as neural-network-based solutions.

Neural TTS Samples


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