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Voice AI research lab offering emotionally intelligent speech models and APIs for developers building empathic voice applications.
Text-to-speech and voice-typing assistant that reads PDFs and web pages aloud and dictates text across apps, for readers and multitaskers.
AI tool that turns text descriptions into custom sound effects, with a large searchable library of pre-made effects.
Free online text-to-speech with 200+ voices across 70+ languages, exporting MP3 for creators and study use.
Free browser-based recreation of the classic Windows Microsoft SAM text-to-speech voice with adjustable pitch and speed.
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
- ✦1,000+ natural-sounding AI voices in 60+ languages
- ✦Adjustable playback speed up to 5x
- ✦Text highlighting synced to audio
- ✦Scan-and-listen photo-to-speech
- ✦Voice dictation/typing across apps
- ✦AI podcast generation from documents
- ✦Voice AI assistant for Q&A on read content
- ✦Cloud storage integrations (Drive, Dropbox, OneDrive)
- ✦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
- ✦200+ AI voices in 70+ languages
- ✦Text and document (PDF/TXT) to speech
- ✦Adjustable speech rate and pitch
- ✦MP3 download
- ✦Voice cloning and audiobook tools
- ✦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
- →Building empathic voice assistants
- →Measuring emotional expression in speech
- →Running human evaluations of voice models
- →Adding emotional intelligence to apps
- →Listening to long articles, PDFs or emails hands-free
- →Studying by having textbooks or lecture notes read aloud
- →Dictating text faster than typing across apps
- →Turning documents into podcast-style audio
- →Reducing eye strain from extensive reading
- →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
- →Voice over YouTube or TikTok content
- →Convert documents to audio
- →Create audiobooks or study material
- →Recreating nostalgic Windows XP-era text-to-speech audio
- →Generating novelty or meme voice clips
- →Testing SAPI4-style voice output for retro projects