DESIGN:OS · Voice AI · DESIGN:OS Voice UX
Production engineering handbook & interactive audit rubric for real-time voice AI agents.
Open-source Voice UX & AI Agent Architecture reference: full-duplex barge-in FSMs, sub-500ms latency budgets, tool-call filler choreography, and 6-dimension audit rubric.
DESIGN:OS Voice UX in operation: deterministic execution with verified output contracts.
production build · verifiedWhat it is
- Repository
- jangtrinh/
design-os-voice-ux - Requires
- Standard ToolchainZero native dependencies
- Interface
- CLI & Library APIDeterministic output
- Telemetry
- Zero TrackingNo phone-home
- Environment
- Local-FirstWorks completely offline
- License
- MIT
Why DESIGN:OS Voice UX, compared with alternatives
What this project does that alternative approaches do not, or do differently. Our advantages first, followed by the honest trade-offs.
Full-duplex barge-in FSMs (<80ms onset)
Deterministic interaction state machines with acoustic echo cancellation (AEC), semantic VAD endpointing, and audible boundary truncation.
Sub-500ms latency budgets & filler choreography
End-to-end acoustic budgeting across WebRTC Opus, Silero v5 VAD, and native S2S pipelines with non-blocking tool-call fillers.
Regulated industry verticals
Production blueprints for HIPAA clinical triage, ECAPA-TDNN banking voice biometrics, ISO 15005 automotive, and RFC 3261 SIP trunking.
100-point 6-dimension audit rubric
Quantitative voice quality scorecard with 6 non-negotiable hard-fail gates and YAML acoustic impairment test vectors.
Where managed voice SaaS platforms win, and it is not close: Turnkey hosted telephony APIs (Vapi, Retell, Bland) handle PSTN number provisioning and managed billing out of the box. Use DESIGN:OS Voice UX to engineer and audit the underlying architecture, FSMs, and latency guarantees.
Install once
Clone the Voice UX knowledge base, audit rubric, and CI/CD acoustic test vectors directly into your workspace.
git clone https://github.com/jangtrinh/design-os-voice-ux.git
cd design-os-voice-ux
# Inspect the 26 core specifications and 100-point audit rubric
cat 01-MANIFEST.md 03-AUDIT-RUBRIC.mdFirst safe use
- Review the 5 fatal voice AI failure modes and reference WebRTC / S2S architectures.
less 02-AUDIT-BRIEF.md architectures/voice-reference-architectures.md - Inspect the machine-readable YAML test vectors for SNR, RT60, and packet loss stress testing.
cat test-vectors/audio-and-conversation-suites.yaml - Run the 25-item production release checklist and 6-layer voice quality scorecard.
cat 06-checklists-and-heuristics/vui-design-checklist.md benchmarks/voice-quality-scorecard.md
Examine the structured output before executing live actions. Verified outputs guarantee state integrity.
A practical loop
budget
Allocate sub-500ms end-to-end turn latency across VAD, acoustic front-end, inference, and streaming playback.
choreograph
Model full-duplex barge-in FSMs, <80ms interruption rollback, earcons, and tool-call filler states.
simulate
Execute Wizard of Oz (WoZ) protocols and automated acoustic stress suites (Auto-T1/T2/T3) under real noise profiles.
audit
Score your voice agent against the 100-point rubric and enforce all 6 non-negotiable hard-fail release gates.
Frequently asked questions
What is DESIGN:OS Voice UX?
DESIGN:OS Voice UX is an open-source tool designed for developers and engineering teams. Open-source Voice UX & AI Agent Architecture reference: full-duplex barge-in FSMs, sub-500ms latency budgets, tool-call filler choreography, and 6-dimension audit rubric.
How is DESIGN:OS Voice UX installed?
Clone the repository from GitHub and follow the Quickstart instructions, or install via your preferred package manager if distributed.
How does it compare with alternatives?
DESIGN:OS Voice UX prioritizes zero-dependency execution, deterministic results, and local privacy over bloated closed-source platforms.
Does it send telemetry or require cloud services?
No. DESIGN:OS Voice UX operates strictly on your local machine. No external tracking, no cloud lock-in, no telemetry.
What license is DESIGN:OS Voice UX released under?
DESIGN:OS Voice UX is licensed under the permissive MIT license, allowing free commercial and personal use.
Ecosystem & Related Projects
Explore complementary developer tools and companion repositories designed to work together.