SpeechShield

Product Introduction

1. Definition: SpeechShield is a macOS-native desktop application (specifically for Apple silicon Macs) that functions as a real-time AI copilot for professional communication. It is a technical productivity tool that leverages on-device and cloud-based AI models to provide live transcription, context-aware answer suggestions, and translation during video calls and media playback.
2. Core Value Proposition: It exists to eliminate communication anxiety and information loss in high-stakes scenarios like job interviews and client meetings. Its primary value is delivering grounded, real-time talking points directly sourced from a user's own materials (resumes, proposals, notes), ensuring answers are both immediate and accurate without fabrication.

Main Features

1. Real-Time Context-Aware Answer Engine: This is the core AI feature. The application listens via the Mac's system audio to platforms like Zoom, Google Meet, and Microsoft Teams. It performs live transcription, and upon detecting a pause in speech (configurable), it instantly generates talking points. Critically, it uses Retrieval-Augmented Generation (RAG) strictly against user-uploaded context documents (PDFs, Word files). Each suggestion is tagged with its source document (e.g., [2026 Proposal.pdf]), ensuring traceability and preventing hallucination.
2. Stealth Overlay & Multi-Platform Viewer: The user interface is a system overlay designed for maximum discretion. It employs multiple technical stealth layers: it is excluded from macOS screen sharing APIs, omitted from screenshots and screen recordings, hides from the Dock and Command-Tab app switcher during active use, and can anonymize its process in Activity Monitor. A complementary Phone Viewer allows users to pair a smartphone via QR code to view the session on a separate device, enabling "off-Mac" operation for ultimate privacy.
3. Modular AI Pipeline & Live Translation: SpeechShield offers a unique, decoupled AI architecture. Users can independently select providers for three tasks: transcription, answer generation, and translation. Options include local macOS speech services (free, on-device), user-provided API keys (OpenAI, Anthropic Claude Code, Codex), or locally-hosted models via Ollama. The Live Translation feature provides real-time translated captions in 13 languages, which can be changed mid-call, and operates fully on-device when using macOS translation.

Problems Solved

1. Pain Point: The "post-interview regret" phenomenon where candidates fail to recall key experiences or miss parts of complex questions, especially in non-native languages. It also solves the problem of ungrounded AI suggestions that may invent facts or figures during critical business negotiations.
2. Target Audience: Primary personas include Job Seekers (engineers, PMs, designers, data analysts), Sales and Account Managers preparing for client calls, and Remote Team Members collaborating across language barriers. Secondary users are professionals practicing presentations or consuming foreign-language video content.
3. Use Cases:
   • A technical interview where an engineer is asked, "Tell me about a time you scaled a backend service," and instantly receives bullet points sourced directly from their resume project.
   • A sales negotiation where a manager is asked about contract discounts and can immediately cite the exact terms from the uploaded proposal PDF.
   • A weekly sync between an English-speaking manager and a Japanese-speaking development team, with live translated captions.
   • Reviewing a recorded interview session to analyze question patterns and personal response gaps.

Unique Advantages

1. Differentiation: Unlike generic AI note-takers that join calls as a bot participant or provide generic summaries, SpeechShield is a private, local-first agent. It requires no bot invitation, ensuring meeting compliance. Its source-grounded generation differs fundamentally from chatbots, as it refuses to generate information not present in the provided context, mitigating legal and reputational risk.
2. Key Innovation: Its six-layer stealth technology is a system-level innovation for macOS productivity apps, making it virtually undetectable in shared environments. The bring-your-own-AI (BYOAI) modular pipeline is also unique, allowing cost control, privacy preservation (using local models), and avoidance of vendor lock-in, distinguishing it from subscription-only SaaS copilots.

Frequently Asked Questions (FAQ)

1. Is SpeechShield detectable during a Zoom screen share? No. The application overlay is explicitly excluded from macOS's screen capture and streaming APIs. Whether sharing your full display or a single application window, the overlay's pixels are not transmitted, making it undetectable to other meeting participants.
2. Can I use SpeechShield for free without any subscription? Yes. The Free plan is permanently free if you supply your own AI API key (e.g., from OpenAI or Anthropic) or use a local model via Ollama. You can also use the on-device macOS services for transcription and translation at no cost. The plan includes a one-time trial of SpeechShield's hosted AI.
3. How does SpeechShield ensure answer accuracy and avoid making up information? It uses a strict RAG (Retrieval-Augmented Generation) methodology. The AI only generates responses based on semantic search results from the specific documents you upload (resume, job description, proposal). Every suggested line is cited with its source document title, and the system is designed not to extrapolate or invent beyond that provided context.
4. What are the system requirements for SpeechShield? It requires an Apple silicon Mac (M1 or later) running macOS 26 (Sequoia) or later. It does not support Intel Macs, Windows, or Linux. The Phone Viewer works with any iOS (Safari) or Android (Chrome) device on the same local Wi-Fi network.
5. Where is my personal data and meeting audio stored? The application follows a local-first principle. All profiles, uploaded documents, and session history are encrypted with AES-256 and stored locally on your Mac. Audio processed by external AI services (if you choose them) is sent directly to your chosen provider (e.g., OpenAI); SpeechShield's servers only handle account management and billing metadata.