Last updated 06-30-2026
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Capacity Voice (formerly LumenVox)
Capacity Voice (formerly LumenVox) is a conversational speech stack for contact centers and customer support teams. It covers automatic speech recognition, neural text-to-speech, voice biometrics, and call progress analysis. You can run it inside the full Capacity platform or plug individual components into an existing contact center stack.
The speech engine uses deep neural networks to handle accents, dialects, and background noise. Voice biometrics verify callers in real time without passwords, with anti-spoofing checks for playback and synthetic speech. Text-to-speech supports 24+ languages, and the Voice AI Agent layer adds 100+ neural voices across 30 languages for branded phone interactions.
Deploy on cloud, on-premise, hybrid, or SaaS depending on compliance needs. The stack integrates with IVR systems, virtual agents, and platforms like RingCentral and NICE through APIs including gRPC and MRCP. It fits teams running high-volume phone support in banking, healthcare, insurance, and other regulated industries.
Deep neural network speech recognition that adapts to accents, dialects, and background noise
Voice biometrics with real-time identity verification and anti-spoofing for playback and synthetic speech
Neural text-to-speech in 24+ languages with male and female voice options
100+ neural voices across 30 languages for branded Voice AI Agent phone interactions
Composable conversational AI components that integrate into existing contact center stacks via gRPC and MRCP
Deploy on cloud, on-premise, hybrid, or SaaS with SOC 2 Type II and HIPAA package options
Modular speech components let you integrate ASR, TTS, and voice biometrics without replacing your full contact center stack.
Supports cloud, on-premise, hybrid, and SaaS deployment for regulated industries.
Voice biometrics cut password friction while adding anti-spoofing checks for synthetic speech.
No public pricing; all platform tiers require contacting sales.
lumenvox.com redirects to Capacity, so the original brand site no longer hosts standalone product pages.
Can Capacity Voice run on-premise?
Yes. Capacity Voice can be deployed in the cloud, on-premise, or in a hybrid setup. The conversational AI components support on-prem, cloud, hybrid, and SaaS deployment models.
What languages does the text-to-speech support?
The neural text-to-speech library supports 24+ languages with male and female voice options. The Voice AI Agent layer extends this to 100+ neural voices across 30 languages.
How does voice biometric authentication work?
Voice biometrics verify callers using biometric voiceprints instead of passwords. The system includes anti-spoofing detection for playback attacks, synthetic speech, and deepfakes, and works across IVR, mobile apps, and live agent interactions.
Does Capacity Voice integrate with existing contact center software?
Yes. The speech stack connects to IVRs and automation tools via gRPC and MRCP APIs. The broader Capacity platform lists 250+ integrations including RingCentral, NICE, Salesforce, and ServiceNow.
How is Capacity Voice priced?
Pricing is custom. The Capacity platform uses tiered plans (Core, Pro, Enterprise) plus usage-based fees for AI agents across chat, voice, email, and SMS. Contact the sales team for a quote tailored to your volume and channels.