How does an AI voice generator work?

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Grâce aux progrès fulgurants de l’intelligence artificielle, AI voices s’invitent de plus en plus dans notre quotidien. Elles animent nos GPS, lisent nos livres audio et donnent vie à nos assistants virtuels.

But how do these AI voice generators et comment parviennent-ils à imiter la voix humaine ? C’est ce que nous allons découvrir ensemble dans cet article.

The steps involved in generating an AI voice

Illustration showing a robot capable of generating more voices
Illustration showing a robot capable of generating voices. Mia for Alucare.fr

Aujourd’hui, nous allons explorer les coulisses de la création d’une voix artificielle et comprendre le fonctionnement des outils de génération de voix IA d’une manière générale.

Find out more in another article on our website comment créer des pubs avec l’IA.

Step 1: Linguistic analysis

Before transforming a text into speech, the AI voice generator must understand its meaning. Cela implique d’analyser la structure grammaticale, la ponctuation, le vocabulaire et le contexte.

Ainsi, l’IA peut identify keywordsHe'll work out the most important phrases and the overall structure of the message to be conveyed. His aim is to understand what you've written, so as to generate an accurate and coherent voice-over.

Step 2: Converting text into phonemes

Par la suite, l’IA décompose chaque mot en ses unités sonores élémentaires, appelées phonèmes. De ce fait, chaque phrase décomposée sera représentée par a sequence of phonemes that forms the basis of speech.

Par exemple, le mot “maison” est composé des phonemes /m/, /ɛ/, /z/, /ɔ̃/. Cette étape est cruciale dans la synthèse vocale, car elle permet à l’IA de générer un son naturel et intelligible.

Step 3: Creating the prosody

La prosodie est l’essence même de la musicality de la voix, incluant l’intonation, le rythme et la vitesse de la parole.

L’IA s’appuie sur des algorithmes intelligents pour determine the prosody best suited to your text. The aim is to bring your words to life by infusing them with the right emotion and tone.

Step 4: Voice-over synthesis

Il s’agit de l’étape finale où l’IA combine les phonèmes et la prosodie pour create a sound wave corresponding to the desired voice.

D’une manière générale, un générateur de voix IA utilise des vocal techniques qui sont basées sur la modélisation acoustique et l’apprentissage automatique afin d’obtenir un résultat bluffant de réalisme.

L’utilité des données vocales pour un générateur de voix IA

The quality of the voice generated depends heavily on the quantity and diversity of the voice data used to train AI voice generator algorithms. The richer and more varied the voice data, the more natural and convincing the AI voice will be.

This data can come from a variety of sources, including :

  • The professional voice-over recordings,
  • The audio book readings,
  • The film and TV dialogue,
  • The recorded voice conversations,
  • Etc.

Il est important que les données vocales soient diversifiées en termes d’âge, de sexe, d’origine ethnique et d’accent. Cela permettra à l’IA de generate more expressive and human voice-overs.

The different types of AI voice generators on the market

At present, the AI voice generation is in full swing, offering a multitude of solutions for bringing your texts to life.

To help you choose the right AI voice generator to your needs, we will introduce you to the different types of AI generators on the market:

🧠 IA voice generator type 📑 Details
Rule-based systems These are the pioneers in text-to-speech technology.

They operate according to a set of predefined rules which describe how the sounds are to be produced.

Statistical systems They represent a evolution compared to rule-based systems.

These systems use statistical models to analyze large quantities of speech data and extract human speech patterns.

Deep neural systems Ils sont basés sur l’intelligence artificielle et représentent la most advanced technology in text-to-speech.

These systems mimic the how the human brain works pour apprendre et générer des voix d’une qualité quasi-humaine.

The advantages and disadvantages of these tools

Les générateurs de voix IA offrent chacun des avantages et des inconvénients, d’autant plus qu’ils sont destinés à différentes applications. Voici donc an overview of what you need to know on these different types of AI voice generators :

👉 Generator type ✅ Benefits ❌ Disadvantages 🧐 Main applications
Rule-based systems
  • Fast and efficient
  • Little greedy in resources
  • Voice clear and intelligible
  • Lack of naturalness et d’expressivité
  • Difficulty reproducing the nuances of human speech
  • Applications limited
  • Text readers
  • Systems voicemail
  • Voice announcements
Statistical systems
  • Voice over natural and expressive
  • Better reproduction of intonation and emotion
  • Adaptable to different styles and accents
  • More resource-hungry
  • Requires large amounts of data for a good learning experience
  • More specialized applications
  • Voice assistants
  • Audio books
  • Dubbing for films and video games
Deep neural systems
  • Voice in particular realistic and expressive
  • Perfect reproduction of the nuances of human speech
  • Capacités d’adaptation et de personalization surges
  • Requires significant computing power
  • Still in development and relatively expensive
  • Currently limited applications
  • Top-of-the-range customer services
  • Applications of virtual reality and augmented reality
  • Create realistic virtual characters

With these points in mind, you can choose the right solution adaptée à vos attentes ainsi qu’à votre budget.

The most recommended AI voice generators

Here are three AI voice generators we recommend :

  • Elevenlabs : cet outil inclut des modèles d’IA vocale relativement avancés avec diverses possibilités de personnalisation. Certaines fonctionnalités sont accessibles gratuitement, mais d’autres sont payantes.

Discover EvenLabs ☑️

Elevenlabs official website
Le site officiel d’Elevenlabs. ©Mia pour Alucare.fr
  • Vidnoz : cette plateforme vous permet de créer du contenu audio sur la base de voix de célébrités ou d’une voix personnalisée. Votre audio est téléchargeable et utilisable dans le cadre commercial. Nous vous donnons plus de détails dessus dans notre article : What is the Vidnoz AI platform?.

Discover Vidnoz ☑️

Vidnoz main interface
Vidnoz main interface. Mia for Alucare.fr
  • Voicebooking This tool offers an easy-to-use voice generator that delivers highly satisfactory results. The first test is free on the platform.
The official Voicebooking website
The official Voicebooking website. Mia for Alucare.fr

Note: You can transform text content into audio in many languages on the tools we've proposed.

Examples of how to use AI voice generators

The AI voice generators ne se contentent pas de reproduire des textes. Ils nous aident à améliorer notre quotidien et à créer de nouvelles opportunités. Pour vous donner une idée, voici une liste non exhaustive d’applications concrètes sur leur utilisation :

🎙️ Using AI voice generators 📑 Details
Creating content accessible to all These tools can be used to create audio descriptions of videos ou d’images, rendant ainsi le contenu accessible aux personnes aveugles ou malvoyantes.

As a result, they offer great autonomy and greater inclusion in society.

Personalized education L’IA peut être utilisée pour créer des interactive learning content adapted to the needs and pace of each student.

Elle permet ainsi de rendre l’apprentissage more fun and more efficient.

Immersive entertainment AI voice generators bring the characters to life de jeux vidéo ou de films d’animation, contribuant à une expérience immersive et captivante pour les consommateurs.

They also make it possible to create audio books and podcasts professional quality.

Engaging marketing These tools can be used to create ads and more emotionally engaging marketing messages.

They allow you to capter l’attention des consommateurs and convey brand messages more effectively.

Enhanced customer services Grâce à l’IA, les chatbots et les voice assistants offer customers 24/7 assistance.

It also makes it possible to personalize their experience and solve problems more quickly and efficiently.

Innovative research tools They can also be integrated into search tools to enable users to formulate their requests by voiceThis makes for a more intuitive and natural experience.

FAQs

Why use an AI voice generator?

Here are a few reasons for which to opt for AI voice generators.

🎯 Raison d’utiliser un générateur de voix IA 📑 Details
Regarding the Pre-trained AIs  AIs on a voice generator are trained on the basis of human voices.

This allows them to produce content that is very close to that of their competitors. créés par l’Homme.

Another advantage is the speed of the process.

No special equipment required Vous n’avez plus besoin d’équipement d’enregistrement vocal lorsque vous utilisez un générateur de voix IA.

L’outil vous offre un audio natural and expressive simply and securely.

A choice of several languages Audios can be generated in several languages on an AI voice generator.

L’outil est capable de reproduire les intonations and the game's accents in the language of your choice.

L’IA permet ainsi d’adapt a voice to a global audience and break down language barriers.

The possibility of AI voice customization Sur un générateur de voix IA, il est possible d’adjust speed, le ton et l’émotion.

Cela s’applique aussi bien aux videos than podcasts, through the tutorials et bien d’autres.

L’outil garantit l’obtention d’une professional voice-over which lives up to everyone's expectations.

Une possibilité d’utiliser the voices of celebrities and various characters Sur de nombreux outils de génération de voix IA, vous pouvez choisir la voix d’une celebrity or a fictional character to interpret your text.

This can be a great help when parodies, them advertising, etc

Est-il possible d’utiliser un générateur de voix IA gratuitement ?

A free version is available often proposed on AI voice generators, but the features in this option are rather limited.

For example, you cannot no advanced editing after generating the voice. You may also be limited to a certain number of words or characters to obtain content.

The applications of AI voice generators are multiplying all the time, with innovations appearing regularly in every field.

These technologies have the potential to revolutionize notre façon d’utiliser la l’IA, de communiquer, d’apprendre, de travailler et de nous divertir.

  • Several types d’outils are available on the market.
  • A AI voice generator often offers a free trial or a free feature with limited possibilities.
  • L’outil est disponible dans several languages afin d’obtenir un contenu varié et accessible à tous.

Découvrez d’autres articles dans le même thème sur notre page AI. If you have any questions, you can ask them in the comment area.

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