Real-Time Interview Assistant: How It Works in 116ms

The Engineering Behind 116ms Real-Time Interview Assistance

When people ask "how does a real-time interview assistant work?", they're usually surprised by the complexity involved. Aissence processes interview audio, runs AI inference, and renders answers — all in 116 milliseconds. Here's exactly how it works.

Step 1: Audio Capture Pipeline

Aissence captures system audio at the OS level — not through browser extensions or meeting bots. This means it works with any meeting platform: Zoom, Google Meet, Teams, Webex, Slack Huddles, and even phone calls through your laptop. The dual-layer audio capture processes both system output (interviewer's voice) and microphone input (your voice) simultaneously.

Step 2: Speech-to-Text Processing

Audio chunks are streamed to our optimized speech-to-text engine using WebSocket connections. We achieve sub-50ms transcription latency through edge processing and audio chunking. The system handles accents, background noise, and overlapping speech with high transcription accuracy across 42 languages.

Step 3: AI Model Inference

Transcribed text flows into our AI processing pipeline. We use multiple models — GPT-4o, Claude 3.5, Gemini, DeepSeek — selected based on question type. Coding questions route to specialized models, while behavioral questions use conversational models. Streaming inference eliminates wait times.

Step 4: Context-Aware Personalization

The AI doesn't just answer questions generically — it uses your resume, job description, and previous answers to generate contextually relevant responses. If you're interviewing for a software engineering role at Google, it tailors technical depth appropriately.

Step 5: Private Coaching Overlay Rendering

Answers render in a private desktop overlay that's:

• Hidden during screen sharing
• Not detectable as a meeting participant
• Excluded from Zoom, Meet, and Teams capture
• Only visible to you on your physical screen

Performance Benchmarks

Read our detailed engineering benchmark showing how each pipeline stage contributes to the total 116ms latency. Compare this with competitors like Final Round AI (500ms+) — our architecture is fundamentally faster.

Try It Yourself

The best way to understand real-time interview assistance is to experience it. Start free and run a mock interview to see 116ms response time in action.