yazses 1.3.0

Local, offline voice dictation for Linux, macOS, and Windows — hold a key, speak, release

YazSes

Hold a key → speak → release. On-device voice dictation that types into any app, plus voice commands and macros — entirely offline. No cloud. No API key. No subscription.

YazSes is an open-source, offline voice-dictation daemon for Linux, macOS, and Windows. It transcribes your speech locally with faster-whisper and types the result into whatever window has focus. Use it when you want hands-free dictation and editor/terminal voice commands without sending audio to Google, Apple, or Microsoft.

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Two versions of YazSes

This repo holds one product with two implementations — not two separate apps, but two generations of the same idea. The one you install and run is Part 1 (Python), on this main branch.

	Part 1 — Python · main	Rust HCI exploration · archive/rust-hci-v1
What it is	The shipping app — voice dictation, commands, macros	An early-stage rewrite exploring deeper human–computer interaction: an on-device agent (LLM tool-use, personal memory, editor awareness)
Status	✅ Active — current product (v1.3.0, installed & maintained)	⏸️ Paused / archived — not shipped, not installable
Hold-to-talk dictation	✅	✅
Offline STT	✅ faster-whisper (CPU int8)	✅ Whisper + Moonshine v2 (~9 ms)
Voice commands	✅ regex grammar (+ optional SLM router) → key sequences	✅ via LLM tool-calls
Voice macros · Mid-Thought Undo · Punch-In · Prosody Ink · Ghost Ahead	✅	❌
Dysfluency-Friendly Mode · learning corpus + yazses tune	✅	❌
Friendly CLI (-h, examples, yazses update)	✅	❌
On-device LLM agent (OS tools: git commit, media, notes, screenshots…)	❌ (optional offline text cleanup only)	✅
Personal memory (encrypted on-device vector store)	❌	✅
Editor context (Neovim / VS Code)	✅ LSP context, opt-in	✅ 5-tier window detection + bridges
Screen-reader integration (AT-SPI / NVDA)	❌	✅
Packaged & distributed (PyPI, snap, APT)	✅	❌

Bottom line: if you want YazSes, use Part 1 (this branch) — an offline dictation + voice-command daemon. The Rust branch is kept only for reference; nothing on main builds, installs, or depends on it. The Rust effort aimed at a more ambitious agentic HCI layer but was left in early stages — revisiting it is a deliberate future decision, not part of day-to-day work here.

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Quick Start

Step 1 — Install (see all install options for every platform)

Platform	Command
Linux (Debian/Ubuntu)	bash <(curl -fsSL https://raw.githubusercontent.com/MSKazemi/yazses/main/install-apt.sh)
Linux (any distro)	sudo snap install yazses
Any OS (Python ≥ 3.11)	pipx install yazses

Step 2 — Set up

yazses doctor               # check mic, injection backend, permissions
yazses enroll               # calibrate your microphone (~30 seconds)
yazses start                # start the dictation daemon

Step 3 — Use it — hold the hotkey, speak, release. The text is typed into the focused app.

OS	Hold this key	Say…
Linux	Space	"the quick brown fox" (types it) · "go to line 42" · "run the tests"
macOS	Right Option	"delete the last word" · "save file" · "new function parse config"
Windows	Right Ctrl	"undo that" · "select all" · "comment this line"

Release the key — YazSes transcribes and acts within about a second.

First time on macOS? v0 builds are unsigned: right-click the app → Open (Gatekeeper), then grant Accessibility + Microphone when prompted.

First time on Windows? If SmartScreen warns you, click More info → Run anyway.

First time on Linux? Run sudo usermod -aG input "$USER" and re-login before starting.

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What you can say

Hold the key and just talk — by default everything you say is typed at the cursor. YazSes also recognises a set of voice commands (a fast regex grammar; an optional ~0.5B SLM router catches phrasings the grammar misses) that map to editor/terminal key sequences instead of being typed:

Say something like…	What happens
"the quick brown fox"	Types the text at the cursor (dictation)
"delete the last three words"	Deletes the last 3 words
"undo that" / "undo five times"	Sends undo
"save file" · "copy" · "paste"	Save / copy / paste
"select all" · "select to end"	Selection commands
"comment this line"	Toggles a comment
"go to line 42"	Jumps to line 42
"go to function parse_config"	Jumps to the symbol (via LSP, opt-in)
"run the tests" / "run the build"	Runs the editor/terminal action
"rename this to user_id"	Renames the symbol

You can also define multi-step macros and a personal vocabulary of mis-heard words — see the CLI reference.

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How it works

Hold hotkey → record audio → VAD gate → faster-whisper (CPU) → clean + disfluency filter
            → command grammar (Tier 1 regex, optional Tier 2 SLM router)
            → dictate? type the text   ·   command? send the key sequence

Everything runs on your CPU — no GPU, no network. Transcription uses faster-whisper (int8). A fast regex grammar classifies each utterance as dictation or a command; when its confidence is low, an optional ~0.5B SLM router takes a second look. The result appears in the focused window within about a second on a modern laptop.

Models:

• Speech-to-text: faster-whisper — tiny.en (fast) / base.en / small.en (more accurate), int8 on CPU
• Command routing (optional): Qwen2.5-0.5B SLM for Tier 2 intent classification — not required for dictation, fetched with yazses model download
• Dictation cleanup (optional, off by default): a small offline LLM can tidy grammar/punctuation; length- and token-preservation guards stop it rewriting meaning

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Requirements

OS	Linux (primary) · macOS 11+ · Windows 10 (21H2)+
RAM	4 GB minimum · 8 GB comfortable
Disk	~250 MB–1 GB for the faster-whisper model (downloaded on first run)
CPU	2+ cores · no GPU required
Mic	Any USB or built-in microphone

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Key features

• Fully offline — no audio, no text, nothing leaves the machine by default; no cloud, API key, or subscription
• Hold-to-talk dictation — type into any focused app on Linux, macOS, or Windows
• Voice commands — editor/terminal actions (undo, save, go-to-line, run tests, rename…) via regex grammar + an optional SLM router
• Macros & personal vocabulary — define multi-step commands and teach YazSes your mis-heard words
• Dysfluency-Friendly Mode — opt-in collapse of stutters/repeats (b-b-because → because) for stuttered or dysarthric speech
• Self-improving — opt-in, encrypted on-device learning corpus; yazses tune proposes accuracy fixes from your own corrections (nothing leaves the machine)
• Editor context — optional Neovim / VS Code LSP context improves accuracy on code identifiers
• Accessibility — VAD calibration wizard, mic-level tuning, and EMG (muscle-sensor) trigger support for motor-disability use
• Voice-activity overlay — optional sonar rings near the cursor while you speak

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Limitations / when not to use YazSes

• Not an LLM agent. YazSes dictates text and runs editor/terminal commands. It does not browse, reason over your files, set timers, or hold a conversation — that was the paused Rust exploration (see Two versions above).
• CPU faster-whisper, not a cloud service. For the absolute lowest word-error rate on a noisy mic, a cloud STT may still beat it; the trade-off is that nothing leaves your machine.
• English-tuned by default. It ships with *.en Whisper models; other languages need a different model.
• Desktop only. No mobile or web build.

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CLI commands

Command	Description
yazses start	Start the YazSes daemon in the background (restarts cleanly if one is already running)
yazses restart	Stop all daemons (including detached) and start exactly one
yazses stop	Stop the running daemon
yazses status	Show daemon status — queries the daemon over IPC when reachable
yazses doctor	Check prerequisites (version, daemon, model, mic, injection backend, permissions)
yazses enroll	Calibrate your microphone — tunes vad_threshold for your voice and room
yazses mic-level	Measure mic speech level and recommend (or --set) the VAD threshold
yazses features	List capabilities and toggle them (enable/disable <name>)
yazses vocab	Personal dictionary of mis-heard words (add/list/remove)
yazses hotkey	Show or change the hold-to-talk key (set) and the dedicated command key (command)
yazses overlay	Launch the sonar voice-activity overlay (requires the overlay extra)
yazses inject TEXT	Type arbitrary text into the focused window — test injection without speaking
yazses say TEXT	Speak text aloud (offline TTS)
yazses test	End-to-end self-test: focuses a window and types YazSes OK
yazses logs	Show the daemon diagnostic log (metadata only — no dictated text is stored)
yazses mark-wrong	Flag the last dictation as a misrecognition (feeds the learning corpus)
yazses tune	Analyse the learning corpus and propose accuracy improvements; --apply to write changes
yazses corpus	Manage the local learning corpus (status, forget, destroy)
yazses model	List or download the optional SLM intent-routing model
yazses remote HOST	Forward voice typing to a remote host over SSH

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Configuration

Config file location:

OS	Path
Linux	~/.config/yazses/config.toml
macOS	~/Library/Application Support/yazses/config.toml
Windows	%APPDATA%\yazses\config.toml

Prefer yazses features / yazses hotkey / yazses vocab to edit config safely (they preserve comments). Essential settings:

[stt]
model = "small.en"          # tiny.en (fast) | base.en | small.en (accurate); CPU int8
initial_prompt = ""         # vocabulary/context primed into Whisper

[hotkey]
key = "space"               # hold-to-talk key (yazses hotkey set <key>)
command_key = ""            # optional dedicated key that forces command mode
hold_threshold_ms = 500     # how long to hold before recording starts

[audio]
sample_rate = 16000
max_record_seconds = 90

[injection]
backend = "auto"            # auto | xdotool | ydotool | wtype | clipboard

[accessibility]
vad_threshold = 0.0008      # lower for quiet speech, raise if room noise triggers (yazses mic-level --set)

See the CLI reference and examples/config.example.toml for all options.

Microphone not working?

If YazSes does nothing and the log shows Silent audio -- discarding, your speech is below the VAD threshold:

yazses mic-level --set   # measure your voice and set the right threshold
yazses restart

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All install options

Linux

# APT script — Debian / Ubuntu (recommended)
bash <(curl -fsSL https://raw.githubusercontent.com/MSKazemi/yazses/main/install-apt.sh)

# Snap — any distro (strict confinement; keystroke injection works on X11.
# On Wayland, prefer pipx below for full input access.)
sudo snap install yazses

# pipx — any distro with Python ≥ 3.11
sudo apt install libportaudio2 xdotool xclip pipx   # Debian/Ubuntu runtime deps
pipx install yazses

macOS

# pipx (Python ≥ 3.11)
pipx install yazses

# App bundle (.dmg) — unsigned developer preview
# https://github.com/MSKazemi/yazses/releases/latest

Windows

# pipx (Python ≥ 3.11)
pipx install yazses

# Installer (.exe) — unsigned developer preview
# https://github.com/MSKazemi/yazses/releases/latest

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Documentation

Install on Linux	Detailed Linux guide — permissions, injection backends, service setup
Install on macOS	Gatekeeper, Accessibility, Microphone permissions
Install on Windows	SmartScreen, antivirus exceptions, privacy settings
CLI reference	All commands and flags (incl. macros & vocabulary for custom voice commands)
Privacy statement	What stays on-device, what is never collected

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Development

YazSes (Part 1) is a Python project managed with uv:

git clone https://github.com/MSKazemi/yazses
cd yazses
uv sync
uv run python -m pytest tests/ -v
bash scripts/install-local.sh        # install locally + run as a user service

Rust HCI exploration (archived)

The early-stage Rust rewrite lives on the archive/rust-hci-v1 branch, not on main. It is not built or installed by anything here — see Two versions of YazSes above for what it does and doesn't have. To look at it:

git checkout archive/rust-hci-v1
cargo build && cargo test --workspace   # optional backends: whisper, moonshine, llama-cpp, ollama, silero

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License

Apache 2.0 — see LICENSE.

If YazSes is useful to you, a ⭐ on GitHub and a mention in your project, blog, or talk is the best way to support continued development.