Give your AI agents a Fish Audio voice

What is Fish Audio?

Fish Audio offers three things that matter to an AI agent: speech, cloning and transcription. Its speech models turn text into audio in a chosen voice, and its documentation recommends s2.1-pro for production. Its transcription model, transcribe-1-pro, handles several languages and multiple speakers.

Every voice is a model in your Fish Audio account or in its public library. Clone one from a clip in the Fish Audio app and it becomes a voice your API key can use.

What you can do with Fish Audio in SFCrew

Fish Audio both speaks and transcribes, so one key covers every voice feature. The voice and calls guide walks through each one.

• Talk instead of typing. Hold the mic in the composer and speak; Fish Audio transcribes it and the bot gets your message.
• Hear replies. Choose Speak this reply on any message, or turn on Read replies aloud in a bot's settings to hear every reply in its voice.
• Call a bot. Choose Call at the top of the chat to talk in real time. The transcript stays in the chat afterwards.
• Let bots call you. Ask "call me at 5 to go over the day", and the bot rings you at five.
• Give each bot its own voice. The Voice picker lists your own Fish Audio voices first, including ones you cloned, then popular public voices. A bot's settings can override your default.

When to choose Fish Audio

Choose Fish Audio when the voice itself matters: a cloned voice, an unusual character, or a language where you want more choice than a fixed set of voices gives you. It speaks and transcribes, so one account does both.

ElevenLabs is the other choice for cloning and polished voices. OpenAI is simplest if you already have a key, and Cartesia is built for low-latency speech but does not transcribe. To keep voice off hosted services entirely, run a self-hosted speech server, or use the voices built into a Mac when SFCrew runs on one. The voice provider comparison puts all six side by side.

Limits

• Fish Audio is a hosted service. The text your bots speak and the audio you record are sent to it, and use comes out of your Fish Audio account. Its free plan is for personal use only.
• SFCrew asks Fish Audio for each reply as a finished clip. It doesn't use Fish Audio's realtime streaming API.
• The voice picker shows your own voices and the top public voices, not the whole library.
• When your Fish Audio credit runs out or the key is rejected, speaking and transcribing stop until you fix the account.
• On the mobile app, calls can use your phone's own voices if you pick a Device voice in the bot's settings. Otherwise replies use this provider.

How to set it up

Each person connects their own key in the app, on SFCrew Cloud or a self-hosted SFCrew. A space can use different voice settings from the rest of your account.

1. Create an API key in your Fish Audio account. To use your own voice, clone it in the Fish Audio app first.
2. In SFCrew, open Settings → Voice, set Provider to Fish Audio and paste the key.
3. Pick a Voice, then choose Hear a sample to check it.
4. Optionally enter a Speech model to use a Fish Audio model other than the default s2.1-pro.
5. If you host SFCrew yourself, set PHONE_CALLS_ENABLED=true on the API and worker to turn on hold-to-talk and calls. Server admins can change the defaults with FISH_TTS_MODEL and FISH_ASR_MODEL.