Expressive American English TTS — natural-sounding voice for Fluents agents on the phone.
Rime is a voice synthesis company focused on making AI voices sound authentically natural — particularly for American English phone conversations. As a TTS option in Fluents' voice stack, Rime converts the conversation engine's text responses into speech with vocal patterns and rhythm that closely match how humans actually speak on the phone.
Where generic TTS sounds like text being read aloud, Rime is trained on real phone conversation audio — meaning the prosody, pacing, and intonation patterns it produces match the natural flow of a real call rather than a text-to-speech readout.
Trained on real American English phone conversation audio — Rime's synthesis matches the natural prosody of human phone speech, not generic TTS readout patterns
Expressive intonation that conveys warmth and confidence — appropriate for insurance intake, healthcare communication, and legal intake contexts
Optimized for telephony audio quality — voices that sound natural on the compressed audio of a standard phone call, not just in studio conditions
How Rime Fits the Fluents Stack
Every Fluents call runs through Deepgram (speech to text), the conversation engine (Gemini or an alternative LLM), and the TTS layer (ElevenLabs by default, or Rime as an alternative). Rime sits in that third layer — receiving the text the conversation engine generates and converting it to audio that plays to the caller. The conversation engine and transcription layer are unchanged; only the synthesis voice changes.
Insurance: Voices That Sound Like Your Best Agent
The tone of an outbound insurance call sets the caller's expectations for the entire interaction. A warm, confident, naturally paced voice signals professional competence and puts the policyholder at ease before the agent has communicated anything substantive. Rime's expressive synthesis delivers this tone consistently — across every call, at any volume.
Healthcare: Warmth in Patient Communication
Patients calling about appointments, medications, or billing are often anxious. The voice quality of the agent affects their willingness to engage and their perception of the care they're receiving. Rime's natural, warm synthesis reduces the friction of AI-mediated healthcare communication — patients feel heard and acknowledged, even when the agent is AI.
Legal Intake: Professional Confidence
Legal intake calls need to project confidence and competence. A potential client deciding whether to retain a firm is partly evaluating the professionalism of every interaction they have with it. Rime's synthesis conveys the measured, professional tone appropriate for legal contexts — not the flat readout of traditional TTS.