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Voice AI research lab offering emotionally intelligent speech models and APIs for developers building empathic voice applications.
Free browser-based text-to-MP3 converter using Amazon Polly voices across 28+ languages with SSML controls.
Browser TTS generator with thousands of voices in 150 languages for marketers, e-learning teams and IVR builders needing fast voiceovers.
Text-to-speech app that turns PDFs, images and documents into natural AI narration for listening, plus voiceover creation.
No public pricing
No public pricing
No public pricing
No public pricing
- ✦Text-to-speech conversion in 75+ languages
- ✦Speech-to-text transcription
- ✦Voice cloning
- ✦Online dictation
- ✦YouTube subtitle generation
- ✦Talking Website feature
- ✦Empathic, emotionally intelligent voice models
- ✦Human-feedback and evaluation APIs
- ✦Open-source models and datasets
- ✦Coverage of 50+ languages and dozens of emotions
- ✦Expression measurement and speech tooling
- ✦Text-to-MP3 conversion powered by AWS Polly
- ✦28+ languages and multiple regional accents/voices
- ✦SSML tags for pauses, emphasis, speed, and pitch
- ✦Multi-speaker conversation formatting
- ✦Daily free character limit (~3,000 characters)
- ✦Over 5,000 AI voices across 150 languages
- ✦Adjustable speed, pitch, volume and pause timing
- ✦SSML controls for intonation and pronunciation
- ✦Background music mixing
- ✦Bulk conversion of long documents up to 1M characters
- ✦Upload of DOCX, PDF or SRT source files
- ✦Commercial usage license included
- ✦Multiple export formats and bitrates
- ✦TTS from PDFs, images and text
- ✦Word/sentence highlighting for read-along
- ✦Playback speed up to 4x
- ✦Support for many languages
- ✦Multiple natural AI voices and styles
- ✦Voiceover creation; iOS and Android apps
- →Creating voiceovers for videos
- →Transcribing audio and video files
- →Adding voice to websites
- →Generating subtitles for YouTube videos
- →Creating audiobooks
- →Developing smart guides for museums and exhibitions
- →Building empathic voice assistants
- →Measuring emotional expression in speech
- →Running human evaluations of voice models
- →Adding emotional intelligence to apps
- →Creating narration for e-learning or presentations
- →Adding accessible audio to websites
- →Producing quick voiceovers for YouTube videos
- →Generating multi-character dialogue audio clips
- →Producing marketing or product-explainer voiceovers on tight deadlines
- →Creating multilingual e-learning narration
- →Building bilingual phone/IVR prompts for small businesses
- →Generating narration for audio guides and tours
- →Localizing video content into other languages
- →Listen to documents while multitasking
- →Study and improve retention
- →Create voiceovers for projects
- →Accessibility for reading difficulties