Text-to-speech technology, also called voice generation, is transforming the world of human-computer interaction. It facilitates the conversion of written text into spoken words, making it possible for digital devices and applications to interact with users in a way that's natural and easy to follow. This technology utilizes advanced algorithms and artificial intelligence to replicate the nuances and subtleties of human speech, including intonation and pronunciation.
TTS has numerous applications across diverse industries, including accessibility tools that help visually impaired people and voice assistants that enable hands-free control of smart devices.
For users seeking a cost-effective engine, opting for an open-source model is the recommended choice. Here is the list of best Voice Generation Open Source Models:
MARY Text-to-Speech, also known as MARYTTS, is a versatile multilingual TTS synthesis platform that caters to a wide array of languages, including English (both British and American variations), French, German, Italian, Russian, and many more. Its extensive language support makes it an excellent choice for global applications.
eSpeak is a compact, open-source text-to-speech engine compatible with both Windows and Linux operating systems. In addition to its support for English, eSpeak accommodates numerous other languages, rendering it a suitable option for a diverse range of users.
Mimic distinguishes itself as a high-speed open-source TTS engine. This engine's swiftness makes it an attractive choice for applications where real-time speech generation is a critical factor.
CMU Flite TTS, commonly referred to as Festival Lite or Flite, is a lightweight runtime TTS engine celebrated for its speed and efficiency. Being an open-source engine, it not only offers cost-free usage but also allows extensive customizations. Consequently, many businesses opt for this TTS engine to tailor it to their specific needs.
MBROLA, an acronym for Multi-Band Resynthesis OverLap Add, is another prominent open-source TTS engine renowned for its wide language support. It caters to a multitude of spoken languages, making it an invaluable tool for projects with diverse linguistic requirements.
YakiToMe simplifies the process of converting text files into voice files with ease. Users can effortlessly download the generated voice files in the popular MP3 audio format. This user-friendly feature-rich tool is ideal for those seeking an uncomplicated text-to-speech solution with the added benefit of audio file downloads.
Mozilla TTS is an open-source model that provides tools and models for converting text into human-like speech. The primary model is Tacotron 2, which generates mel-spectrograms, and it can be paired with a vocoder like WaveGlow to create audio.
Facebook's Voicebox is an advanced AI model capable of performing various speech generation tasks, such as editing, sampling, and stylizing. It can produce superior quality audio clips and edit pre-recorded audio to remove any unwanted noises like car horns or dog barking while preserving the content and style of the audio. Additionally, the model is multilingual and can produce speech in six different languages.
While open source models offer many advantages, they also come with some potential drawbacks and challenges. Here are some cons of using open source models:
Given the potential costs and challenges related to open-source models, one cost-effective solution is to use APIs. Eden AI smoothens the incorporation and implementation of AI technologies with its API, connecting to multiple AI engines.
Eden AI presents a broad range of AI APIs on its platform, customized to suit your specific needs and financial limitations. These technologies include data parsing, language identification, sentiment analysis, logo recognition, question answering, data anonymization, speech recognition, and numerous other capabilities.
To get started, we offer free $10 credits for you to explore our APIs.
Our standardized API enables you to integrate Text to Speech APIs into your system with ease by utilizing various providers on Eden AI. Here the list (in alphabetical order):
AWS provides a powerful TTS API called Amazon Polly that allows users to customize speech output and create personalized voices using lexicons and Speech Synthesis Markup Language (SSML) tags. AWS's Text-to-Speech system possesses the feature of creating speech in diverse languages, thus being an incredibly versatile and valuable tool for businesses and individuals requiring global communication.
ElevenLabs provides the most cutting-edge text-to-speech and voice cloning software available today. You are able to generate vivid voiceovers for your content or utilise their AI voice technology for seamless text reading.
The software can transform text into realistic audio output in 29 languages and with 120 distinct voices. Moreover, you can efficiently create a digitized version of your own voice online within just a few minutes. Regardless of whether you're an author or a content creator, ElevenLabs' AI voice generator lets you create engaging audio content.
Google Cloud offers a TTS API that leverages DeepMind's exceptional speech synthesis capabilities to deliver high-quality speech with natural intonation. With over 380 voices available in 50+ languages and variants, users can select the ideal voice for their needs.
Additionally, Google Cloud's API enables users to design a distinctive voice that represents their brand across all customer touchpoints.Users can train bespoke voice models, modify intonation and pace, and apply SSML tags for voice personalization.
IBM Watson's service is capable of providing real-time speech synthesis in multiple languages using advanced AI and Machine Learning technologies, enabling users to interact with customers in their native tongue.
Additionally, IBM offers users the option to create a unique and branded voice through its Premium service, which can enhance a brand's identity and improve customer engagement.
Lovo offers a high-quality AI voice generator called Genny. One of its most impressive features is Emotional Voices, which can express up to 25 emotions, adding depth and realism to any content, which in turn makes it more engaging and memorable. The platform also provides a one-stop-shop for video dubbing, allowing users to easily add sound effects and background music to their videos.
Lovo’s AI voices also provide superior realness and quality, with the world's largest library of voices (over 400+ voices with various styles, available in 100 languages).
Microsoft Azure offers a robust Text to Speech API that empowers users to produce authentic synthesized speech with intonation and emotion that align with human voices. With Azure, users can devise a distinctive AI voice generator that embodies their brand's identity.
Furthermore, the audio controls facilitate optimizing voice output for particular circumstances by modifying pace, pitch, articulation, pauses, and other parameters.
Eden AI offers a user-friendly platform for evaluating pricing information from diverse API providers and monitoring price changes over time. As a result, keeping up-to-date with the latest pricing is crucial. The pricing chart below, outlines the rates for smaller quantities for October 2023 , as well as you can get discounts for potential large volumes.
Eden AI is the future of AI usage in companies: our app allows you to call multiple AI APIs.
You can see Eden AI documentation here.
The Eden AI team can help you with your Text-to-Speech integration project. This can be done by :