Most voice AI only hears words. RealSpeak analyzes the raw audio signal itself — pitch, cadence, breath, tremor — across 48 emotion dimensions on every single utterance. No transcription needed.
Traditional voice AI converts speech to text, processes the text, then converts text back to speech. Every conversion loses emotional context. RealSpeak is different — our AI analyzes the raw audio waveform directly, measuring prosodic features that text can never capture: micro-tremors in the voice, breathing patterns, pitch contours, speech rhythm, and vocal tension.
A caller's pitch rises when they're frustrated. Their cadence accelerates under stress. We detect these shifts in real-time — before they even finish their sentence.
Micro-tremors in voice indicate anxiety or distress that words alone can't convey. A customer might say “I'm fine” while their voice tells a completely different story. We hear both.
Hesitation pauses signal uncertainty. Rapid breathing signals agitation. Long exhales signal resignation. These non-verbal cues are invisible to TTS/STT systems but critical for empathic response.
Same words. Completely different meaning. Here's how RealSpeak reads between the lines — in real time.
"Yes, I understand the policy..."
Voice is shaking. Pitch elevated 40%. Breathing rapid. Long pauses between words.
Anxiety: 78% · Distress: 65% · Confusion: 52%
Agent slows pace, uses reassuring tone, offers to walk through each step. Flags for priority human follow-up.
"This is the third time I've called about this."
Flat pitch, clipped cadence, heavy exhales. Vocal tension rising on "third time."
Frustration: 91% · Contempt: 44% · Resignation: 38%
Immediately acknowledges prior calls. Skips scripted intro. Escalates with full context — no hold, no transfers.
"Hmm, that's interesting... tell me more about pricing."
Pitch lifts on "interesting" — genuine curiosity. Speaking faster. Leaning-in posture cues in breath pattern.
Interest: 84% · Excitement: 61% · Openness: 73%
Agent recognizes buying signal. Shifts from discovery to value proposition. Offers live demo instead of email follow-up.
RealSpeak handles the voice infrastructure and emotion analysis. You handle the business logic.
Define personality, system prompt, voice, and tools via the dashboard or API. Register the webhook where tool calls are sent.
Assign a phone number to your agent. Inbound calls are answered instantly. Or embed the web widget for browser-based voice.
When the agent needs data, RealSpeak POSTs HMAC-signed requests to your webhook. Return results and the agent speaks them naturally.
When understanding emotion isn't a nice-to-have — it's the difference between resolution and escalation.
Detect frustration in the voice before they ask for a manager. Route escalations automatically. Resolve routine issues with empathic tone-matching.
Triage patients by emotional urgency, not just symptoms. Detect distress signals in voice that text intake forms completely miss.
Read buying signals through vocal excitement. Know when a prospect is genuinely interested vs. politely dismissive — and adapt your pitch in real time.
Detect caller distress before it escalates. Adjust tone dynamically — firm but empathic. Resolve payment disputes faster with emotional awareness.
Full REST API + WebSocket. Create agents, manage tools, query call history and emotion data.
curl -X POST https://realspeak.ai/api/v1/agents \
-H "Authorization: Bearer rs_live_..." \
-d '{
"name": "Support Agent",
"systemPrompt": "You are empathic...",
"voiceName": "ITO",
"webhookUrl": "https://you.com/webhook",
"tools": [{
"name": "lookup_order",
"parameters": { ... }
}]
}'// Your webhook receives this on every utterance
{
"event": "prosody.update",
"callId": "call_abc123",
"emotions": {
"frustration": 0.82,
"urgency": 0.71,
"confusion": 0.45,
"satisfaction": 0.12
},
"dominant": "frustration",
"sentiment": "negative",
"confidence": 0.94
}Start free. Scale as you grow. No hidden fees.
For testing and small projects
For growing businesses
For high-volume operations
For organizations at scale
Build your first emotion-aware voice agent in minutes. Free tier included. No credit card required.