Speed of Sound
by Antonio Zugaldia
Voice typing for the Linux desktop
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Flatsonar is just the shop window. The people below made Speed of Sound.
About
Speed of Sound is a voice-typing app for the Linux desktop.
By default, transcription runs entirely on-device, so no audio ever leaves your machine. The app ships with a built-in multilingual Whisper model and supports additional models from the Whisper, Parakeet, and Canary families to improve accuracy.
- Offline, private transcription with popular open speech models (Whisper, Parakeet, Canary)
- Multiple activation options: click the in-app button or use a global keyboard shortcut
- Types directly into any app via XDG Desktop Portals (supports X11 and Wayland)
- Optional text polishing with LLMs, supports self-hosted services like Ollama, vLLM, and llama.cpp
- Optional cloud providers supported for resource-constrained hardware environments
Please visit speedofsound.io/getting-started after installation.
Permissions
1 permission weaken the sandbox. Flatsonar asks before installing.
- X11 display: X11 lets apps read input and windows of other apps
--socket=x11 - network
--share=network - inter-process communication (needed for X11)
--share=ipc - Wayland display
--socket=wayland - audio
--socket=pulseaudio - X11 display, only when Wayland is unavailable
--socket=fallback-x11 - GPU acceleration
--device=dri - system tray
--talk-name=org.kde.StatusNotifierWatcher
Who publishes this
The creator demonstrably controls this app id: Flathub verification, the hosting account owns the namespace, or a well-known file on their domain.
- verified on Flathub: the developer proved they control this app id
publisher:flathub
Maintenance
Recent activity on the upstream repository, or built and reviewed by Flathub.
No staleness signals: recent activity, or built and reviewed by Flathub.