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Voice AI research lab offering emotionally intelligent speech models and APIs for developers building empathic voice applications.
Online AI toolkit to enhance audio and strip noise, echo, and vocals, plus stem splitting and BPM/key detection.
Free browser-based text-to-speech tool with a large multilingual voice library and adjustable tone, speed, and pitch.
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
Free trial available
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
- ✦Music Analyzer (Key, BPM, Camelot, Mood Detection)
- ✦BPM Tapper
- ✦Music Genre Finder
- ✦Audio Trimmer
- ✦Voice Recorder
- ✦HPCP Chroma
- ✦Online Metronome
- ✦AI audio enhancement
- ✦Noise and echo removal
- ✦Vocal remover and stem splitter
- ✦Voice changer
- ✦BPM and key finder
- ✦Loudness meter and mic test
- ✦Free online text-to-speech conversion, no signup required
- ✦Voice library spanning 25+ languages and regional accents
- ✦Adjustable speed, pitch, and emotional tone presets
- ✦Use cases for audiobooks, podcasts, and video dubbing
- ✦Separate paid desktop app for unlimited offline bulk conversion
- ✦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
- →Building empathic voice assistants
- →Measuring emotional expression in speech
- →Running human evaluations of voice models
- →Adding emotional intelligence to apps
- →Find the key, BPM, and Camelot of a song for DJing or remixing.
- →Trim audio files to create loops or samples.
- →Record voiceovers or vocal tracks.
- →Determine the genre of a song for playlist curation.
- →Practice timing with an online metronome.
- →Analyze harmonic content of live instrument playing.
- →Improve podcast and interview audio
- →Remove background noise and echo
- →Split songs into stems
- →Analyze BPM and key of tracks
- →Narrating short stories or articles into audio
- →Creating voiceovers for videos or podcast intros
- →Generating multilingual audio clips for accessibility
- →Converting large documents to speech in bulk via the paid desktop app
- →Listen to documents while multitasking
- →Study and improve retention
- →Create voiceovers for projects
- →Accessibility for reading difficulties