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Voice AI research lab offering emotionally intelligent speech models and APIs for developers building empathic voice applications.
Text-to-speech app turning PDFs, ebooks, emails and web articles into natural audio in 60+ languages on iOS and Android.
Text-to-speech app that turns PDFs, images and documents into natural AI narration for listening, plus voiceover creation.
Free browser-based recreation of the classic Windows Microsoft SAM text-to-speech voice with adjustable pitch and speed.
AI tool that turns text descriptions into custom sound effects, with a large searchable library of pre-made effects.
No public pricing
No public pricing
No public pricing
- ✦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
- ✦Converts PDF, EPUB, DOCX, emails and web pages to speech
- ✦Best-in-class OCR including handwriting and scans
- ✦200+ natural voices with content-specific presets
- ✦60+ languages with auto-detection
- ✦Synchronized text highlighting and speed control
- ✦iOS, Android and Chrome extension
- ✦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
- ✦Recreation of classic Microsoft SAM SAPI4 voice
- ✦Multiple voice presets (Sam, Mike, Mary, BonziBUDDY, etc.)
- ✦Adjustable pitch and speed controls
- ✦Client-side generation, no server processing
- ✦WAV file download
- ✦Works across modern browsers without installation
- ✦Text-to-sound-effect generation
- ✦AI voice cloning
- ✦Video-to-sound-effect matching
- ✦AI music and lyrics generation
- ✦Text-to-speech tool
- ✦Searchable library of pre-made sound effects
- →Building empathic voice assistants
- →Measuring emotional expression in speech
- →Running human evaluations of voice models
- →Adding emotional intelligence to apps
- →Listening to articles and documents hands-free
- →Accessibility support for dyslexia, ADHD or low vision
- →Studying and multitasking by listening
- →Consuming ebooks and long reads as audio
- →Listen to documents while multitasking
- →Study and improve retention
- →Create voiceovers for projects
- →Accessibility for reading difficulties
- →Recreating nostalgic Windows XP-era text-to-speech audio
- →Generating novelty or meme voice clips
- →Testing SAPI4-style voice output for retro projects
- →Generating a custom sound effect for a video or game
- →Finding existing sound effects for content creation
- →Adding synced sound effects to AI-generated video
- →Creating voice or speech audio from text