Deep Voice 3 vs SpeechGen.io
In the contest of Deep Voice 3 vs SpeechGen.io, which AI Text to Speech (TTS) tool is the champion? We evaluate pricing, alternatives, upvotes, features, reviews, and more.
If you had to choose between Deep Voice 3 and SpeechGen.io, which one would you go for?
When we examine Deep Voice 3 and SpeechGen.io, both of which are AI-enabled text to speech (tts) tools, what unique characteristics do we discover? Both tools have received the same number of upvotes from aitools.fyi users. Since other aitools.fyi users could decide the winner, the ball is in your court now to cast your vote and help us determine the winner.
Not your cup of tea? Upvote your preferred tool and stir things up!
Deep Voice 3

What is Deep Voice 3?
Deep Voice 3 is an open source text-to-speech system that uses a fully convolutional neural network to convert text into natural-sounding speech. It supports both single-speaker and multi-speaker models, allowing it to generate speech in various voices and accents. The system is designed to scale efficiently, handling large datasets and training quickly compared to traditional TTS models.
The architecture includes an encoder that processes text inputs, an attention-based decoder that predicts mel-scale spectrograms, and a converter network that generates vocoder parameters for waveform synthesis. This design helps produce clear and natural speech with fewer mispronunciations. Deep Voice 3 also supports training on phoneme, character, or mixed inputs, which improves pronunciation accuracy.
Recent implementations have demonstrated the model's ability to synthesize speech from multiple speakers with distinct accents and ages, showcasing its versatility. Audio samples from various English accents, including Southern England and Scottish, highlight its adaptability to different speech styles.
Deep Voice 3 is suitable for developers and researchers interested in building scalable, high-quality TTS applications. Its open source nature allows customization and experimentation with different model configurations and datasets.
While the core technology remains consistent with the original design, ongoing community efforts focus on improving training efficiency and expanding multi-speaker capabilities. The system's modular structure facilitates integration with other speech processing tools and vocoders.
Overall, Deep Voice 3 offers a balance of speed, scalability, and speech quality, making it a valuable resource for those working on speech synthesis projects that require flexibility across voices and languages.
For detailed technical insights and implementation guidance, the original research paper and open source repositories provide comprehensive resources.
SpeechGen.io

What is SpeechGen.io?
SpeechGen.io offers a realistic text-to-speech service that converts any text into natural-sounding voiceovers. It supports over 150 languages and accents, including premium Pro voices that deliver more human-like sound quality. Users can customize voice parameters such as speed, pitch, stress, and intonation, with SSML support for detailed control. The platform allows multi-voice editing, enabling dialogues with several voices in one text. SpeechGen.io is designed for a wide range of users including video creators, educators, marketers, and developers who want to add lifelike speech to their content or applications. It supports commercial use and integrates easily with popular video editing software. The service uses a flexible pay-as-you-go model with one-time payments for voiceover limits, avoiding monthly subscriptions. Users can convert very long texts—up to 2 million characters per query—if their balance allows. All generated audio files can be downloaded in MP3, WAV, or OGG formats and are saved securely in the cloud for easy access and management. SpeechGen.io also offers subtitle-to-audio conversion and a WordPress plugin to embed voiceovers directly on websites, enhancing accessibility and engagement.
Deep Voice 3 Upvotes
SpeechGen.io Upvotes
Deep Voice 3 Top Features
🎤 Multi-speaker support with varied accents and ages for diverse voices
⚡ Fast training speeds enabling quicker model development
🧩 Flexible input options using phonemes, characters, or both for better pronunciation
🔊 Generates mel-scale spectrograms for high-quality audio synthesis
🔧 Open source codebase allowing customization and integration
SpeechGen.io Top Features
🎙️ Over 150 languages and accents for global reach
🗣️ Multi-voice editor to create dialogues with several voices
⚙️ Custom voice settings including speed, pitch, and intonation
💾 Download audio in MP3, WAV, or OGG formats for any use
💳 Flexible pay-as-you-go pricing with one-time payments
Deep Voice 3 Category
- Text to Speech (TTS)
 
SpeechGen.io Category
- Text to Speech (TTS)
 
Deep Voice 3 Pricing Type
- Freemium
 
SpeechGen.io Pricing Type
- Paid
 
