Megaphone

Megaphone

Megaphone by Kuber Studio is a free, open-source Mac dictation app. It uses Apple SpeechAnalyzer for fast live transcription and on-device Foundation Models to clean speech, understand app context, an

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What is Megaphone?

Megaphone by Kuber Studio is a free, open-source Mac dictation app that uses Apple's SpeechAnalyzer for fast live transcription and on-device Foundation Models to clean speech and understand app context. It allows you to begin dictation with the phrase "Hey Megaphone" and get answers directly inside the app you're already using, eliminating the need for separate chat windows or copy-paste loops. The app processes everything locally on your Mac, ensuring privacy and offline functionality.

Application scenarios

  • Coding and development

    Dictate code commands like `git push --force-with-lease` and get context-aware results that respect technical syntax.

  • Document editing

    Use dictation in apps like Google Docs, Obsidian, or Mail to write and edit without leaving the cursor.

  • Release note creation

    Quickly turn spoken thoughts into concise release notes with automatic cleanup.

  • Technical writing

    Teach the app specialized terms, acronyms, and product names for accurate transcription.

  • Multilingual dictation

    Automatic language detection works alongside live cleanup and personal Dictionary settings.

  • Workflow automation

    Combine dictation with app context to get formatted results that match the tone and formatting of the active application.

Core Features

  • Hey Megaphone activation

    Start dictation instantly by saying "Hey Megaphone" without clicking or switching apps.

  • On-device Foundation Model

    The local AI model processes speech and provides answers inside your current app, with no cloud dependency.

  • Smart Cleanup

    Automatically removes filler words (like "um" and "I think") and applies deterministic fallback for instant results.

  • Personal Dictionary

    Add names, products, acronyms, and technical terms to ensure correct spelling; words become active after three successful dictations.

  • Automatic Learning

    The app learns words you use often and adds them to the Dictionary automatically.

  • App Context awareness

    Megaphone uses the active application and window as local hints for tone, spelling, and technical formatting.

  • Dictionary Import/Export

    Save your private Dictionary (words, stars, suggestions, and Exact Corrections) to a JSON file and transfer it to another Mac.

  • Local Memory

    The app remembers your preferences and learned terms across sessions while staying entirely on-device.

Target users

Megaphone is designed for developers, writers, and professionals who want to dictate text directly into their existing apps without interrupting their workflow. It's ideal for anyone who needs fast, accurate transcription with technical vocabulary support, including coders using tools like Codex and Claude Code, content creators working in Google Docs or Obsidian, and power users who prefer local, privacy-focused AI solutions.

How to use Megaphone?

  1. Download the free, open-source app from the Megaphone website (megaphone.kuber.studio).
  2. Install and launch the app on your Mac.
  3. Begin dictation by saying "Hey Megaphone" while in any supported application.
  4. Speak naturally—the app transcribes live, cleans up filler words, and applies app-specific formatting.
  5. Use the Dictionary settings to add custom terms, acronyms, or product names for accurate spelling.
  6. Export your Dictionary to a JSON file for backup or transfer to another Mac.

Effect review

Megaphone delivers a genuinely useful dictation experience that stays out of your way. The combination of on-device processing, app context awareness, and a personal Dictionary makes it particularly strong for technical users who need accurate transcription of code, acronyms, and specialized terms. The live cleanup feature works well for removing filler words without distorting the intended message. While the app is currently Mac-only and relies on Apple's speech framework, its open-source nature and local processing make it a compelling choice for privacy-conscious users. For anyone tired of copy-pasting between dictation tools and their actual work apps, Megaphone offers a streamlined, integrated solution that just works.

Frequently Asked Questions

What is Megaphone?
Megaphone is a free, open-source Mac dictation app that uses Apple SpeechAnalyzer for fast live transcription and on-device Foundation Models to clean speech and understand app context.
Is Megaphone free to use?
Yes, Megaphone is completely free and open-source.
How does Megaphone process speech?
It uses Apple SpeechAnalyzer for live transcription and on-device Foundation Models for cleaning speech and understanding app context, ensuring privacy and speed.
Can Megaphone understand app context?
Yes, it uses on-device models to understand the context of the app you are using, improving dictation accuracy.
Is Megaphone available for Windows or Linux?
No, Megaphone is specifically designed for macOS and is not available on other platforms.
Does Megaphone require an internet connection?
No, all processing is done on-device, so no internet connection is needed for transcription or cleaning.

Megaphone - AI Tool Detail

Megaphone by Kuber Studio is a free, open-source Mac dictation app. It uses Apple SpeechAnalyzer for fast live transcription and on-device Foundation Models to clean speech, understand app context, an

Category：AI voice assistant

Visit Link：https://megaphone.kuber.studio/

Tags：open-source、macOS dictation、live transcription、on-device AI、speech-to-text