What is an AI voice?

This term describes a synthesised or generated voice output using artificial intelligence algorithms. It offers multiple application possibilities: from virtual assistants to narration and voice-overs for videos. AI-powered TTS technology allows this solution to be integrated into websites, apps and videos.

In this article, we discuss:

• What is Text to Speech
• How the AI voice generator works
• The best TTS tools for the web or apps
• How to integrate TTS
• Advantages of TTS

Text-to-speech technology is a voice generator. It uses artificial intelligence algorithms to convert text into realistic and natural speech, comparable to human speech.

Listening to a text read aloud is the fastest, most convenient and effective way to acquire information. The audio generated can be used in videos, advertisements, audiobooks, dubbing, website content or e-learning.

TTS technology uses surprisingly natural language in most of the world’s languages. AI voices have improved significantly over the last two years, and today they are almost indistinguishable from human speech.

Key features

• AI voice generation Converting text to speech
• AI voice dubbing Dubbing a video into other languages
• AI voice cloning Creating a customised voice

There are many AI voice generators currently on the market, all of which are of good quality. To decide which one to adopt, it is therefore necessary to evaluate several aspects. At KeyWe, we recommend gathering information about the company, evaluating the integrated features, the roadmap, the support service offered, and the selling price.

Our favourite tools

• Speechify AI Voices Studio Industry leader
• ElevenLabs Library with around 300 voices
• WellSaid Word-by-word voice settings control
• Altered High-quality speech

Many TTS generators are available through APIs (Application Programming Interfaces), allowing integration on any proprietary web platform or app.

One example is OpenAI: its audio APIs provide speech based on its TTS model. It comes with six built-in voices and can be used to:

• Narrate a blog post
• Produce audio in multiple languages
• Provide real-time audio output via streaming

Speech requires three defined parameters:

1. The TTS model
2. The text to be converted to audio
3. The voice to be used

Of particular interest is the support for real-time audio streaming via Chunk Transfer encoding. Audio can be generated and played back before the file is completed and made accessible. The default output format is “mp3”, but other formats such as “opus”, “aac”, “flac” and “pcm” are also available.

• Accessibility: it allows equal access to content, including for people who are visually impaired, have low literacy skills, or have speech or learning difficulties.
• Improved UX: people can choose between listening and reading according to their preferences.
• Efficiency: content can be listened to at different times and in different contexts, for example while travelling or during a workout.

Our approach

KeyWe is your strategic partner for exploring the potential of the digital world. We support companies in choosing the technological solution that best aligns with their marketing objectives. Every project we undertake is meticulously planned and fully customised. We support companies at every stage, from strategic consulting to implementation and maintenance.