Speech Studio：离线语音生成与转录

Free offline AI voice studio for Windows — text-to-speech with cloned and built-in voices, and speech recognition with speakers. Russian …

Speech Studio Free, offline AI voice studio for Windows, macOS (Apple silicon) and Linux — voice any text with cloned and built-in voices, and turn recordings into text with the speakers. Russian done right: numbers in their cases, stress marks, «ё» and homographs. 100% local, zero Python: one native app (Rust + C++ on CUDA, Vulkan or Metal); every model and engine downloads with a button. English · Русский · 中文 · Español · Português · Français What it is Speech Studio has three modes. Speech voices text: a line, a dialog with a voice per character, a podcast the director writes for you, or a whole book from EPUB, FB2, PDF or DOCX. Listening turns a recording, a video or a link into text with who said what and when, cuts it by its words, checks a voicing against the text it should say and makes library voices from its speakers. Live is a voice conversation with an AI agent connected over MCP: it says each phrase as soon as it writes it and hears you through the microphone. Everything runs locally on your machine — no cloud, no subscription; your texts, recordings and voiceprints never leave your computer. If you want a voice your card can't run, the cloud voices of OpenRouter, Google Gemini, fal.ai and Runware are there too, each behind its own key and a confirmation before the first call; they are off by default. It's a fully native app: no embeddable Python, no torch, no CUDA wheels. The whole studio is Rust + native C++ engines (GGUF/ONNX) on CUDA, Vulkan or Metal. Models, engines, the CUDA and VC++ runtimes and ffmpeg are downloaded by the app itself on first run, and a model another of the author's studios already has is taken from it instead of downloaded again. An NVIDIA GPU is what the app is built and tested for; see What runs where for the rest. For AI agents While Speech Studio is open it serves MCP at http://127.0.0.1:8797/mcp: an agent such as Claude Code, Claude Desktop, Cursor or Codex does everything the window does, through the same code — voices a text into a file in one call, makes and edits projects block by block, casts voices to characters, designs a voice from a description, transcribes and checks recordings, exports audiobooks with chapters and subtitles. Settings, Agent (MCP) shows whether an agent is connected and what to paste into the client. The one thing an agent cannot do is turn the microphone on: Live, a recording and the microphone test start only on your own click or key. Install the studio from the latest release and start it. Connect to its MCP server: claude mcp add --transport http speech-studio http://127.0.0.1:8797/mcp Other clients: { "mcpServers": { "speech-studio": { "type": "streamable-http", "url": "http://127.0.0.1:8797/mcp" } } } Read the skill the server serves (resource studio://skill), the same text as docs/mcp-skill.md, and start with the tool studio_status. The studio also speaks the OpenAI audio API on the same port — POST /v1/audio/speech, POST /v1/audio/transcriptions, GET /v1/models — so tools written for OpenAI voice and transcribe through it, with a library voice's name as voice. llms.txt says the same for tools that look for it. Only programs on this computer may connect. What you can make with it An audiobook — drop an EPUB or FB2: chapters, characters with their own voices, an M4B with chapters and cover, ACX loudness checked. A podcast or a dialog — the director writes a podcast on a topic for two or three speakers, or paste lines like «Anna: …»; the timeline shows every overlap. A voice-over for a video — voice a script or subtitles into their cues, lay music and sounds under it in the track editor, export at the video's loudness. A transcript of an interview or a lecture — who said what and when, word times, subtitles by broadcasters' rules, the recording cut by its text. A check of a dubbing — lay the script over the recording and see every word said wrong or skipped. Your own voice library — record or import voices, clean them, make voices from the speakers of a recording. A voice for your AI agent — talk with Claude Code or any MCP agent in Live, or let it voice and transcribe files through MCP or the OpenAI-compatible API. Examples of every engine and voice, with Russian stress before and after, are on the project page. Three modes Mode What it does 🔊 Speech Text, dialog, podcast or book → voiced blocks with takes, checked by ear, exported as WAV, FLAC, MP3, OGG, M4A or M4B with chapters, subtitles and synced text 👂 Listening Audio, video or a link → a transcript with speakers and word times, a karaoke player, cut-by-text, export to SRT, VTT, ASS, TXT or JSON, a check against a reference text 🎙️ Live A voice conversation with an AI agent: the agent connected over MCP speaks each phrase as it writes it, you answer into the microphone and are recognised phrase by phrase, a phrase said over it stops it; only you turn the microphone on, pause with M or Ctrl+Shift+Space, a widget over every window Features Voices and engines Five local engines — Higgs Audio v3 (cloning, emotions and sounds), Fish Audio Drama 3 (the strongest open voice; the whole model on a 24 GB card, from 6 GB with its experts in RAM), Supertonic 3 (fast, ten built-in voices), Qwen3-TTS 1.7B (nine built-in voices, cloning, an instruction per block) and Qwen3-TTS with Russian stress, siriusfreak's LoRA applied at run time. Engine per character and per block over the project's own; an engine that can't speak the voice in use says which of its voices it takes. Voice library — a voice pack in one click, 743 Russian voices from the cloud catalogue, recording from the microphone, import of files and ZIPs, photo, gender, age, language, tags and consent; the reference transcript is recognised once and kept. Clean a reference — Mel-Band Roformer takes the voice from music, DPDFNet takes noise away with a strength control so speech stays alive; the original is kept. Best piece of a reference — windows at pauses between recognised words, each with its length, signal-