JavaScript SDK

npm install @elevenlabs/client
# or
yarn add @elevenlabs/client
# or
pnpm install @elevenlabs/client

import { Scribe, RealtimeEvents } from "@elevenlabs/client";

const token = await fetchTokenFromServer();

const connection = Scribe.connect({
  token,
  modelId: "scribe_v2_realtime",
  microphone: {
    echoCancellation: true,
    noiseSuppression: true,
  },
});

connection.on(RealtimeEvents.PARTIAL_TRANSCRIPT, (data) => {
  console.log("Partial:", data.text);
});

connection.on(RealtimeEvents.COMMITTED_TRANSCRIPT, (data) => {
  console.log("Committed:", data.text);
});

// Later, close the connection
connection.close();

// Node.js server
app.get("/scribe-token", yourAuthMiddleware, async (req, res) => {
  const response = await fetch("https://api.elevenlabs.io/v1/single-use-token/realtime_scribe", {
    method: "POST",
    headers: {
      "xi-api-key": process.env.ELEVENLABS_API_KEY,
    },
  });

  const data = await response.json();
  res.json({ token: data.token });
});

// Client
const fetchToken = async () => {
  const response = await fetch("/scribe-token");
  const { token } = await response.json();
  return token;
};

const connection = Scribe.connect({
  token,
  modelId: "scribe_v2_realtime",
  microphone: {
    deviceId: "optional-device-id",
    echoCancellation: true,
    noiseSuppression: true,
    autoGainControl: true,
  },
});

import { AudioFormat } from "@elevenlabs/client";

const connection = Scribe.connect({
  token,
  modelId: "scribe_v2_realtime",
  audioFormat: AudioFormat.PCM_16000,
  sampleRate: 16000,
});

enum AudioFormat {
  PCM_8000 = "pcm_8000",
  PCM_16000 = "pcm_16000",
  PCM_22050 = "pcm_22050",
  PCM_24000 = "pcm_24000",
  PCM_44100 = "pcm_44100",
  PCM_48000 = "pcm_48000",
  ULAW_8000 = "ulaw_8000",
}

import { Scribe, RealtimeEvents } from "@elevenlabs/client";

async function transcribeFromMicrophone() {
  const token = await fetchToken();

  const connection = Scribe.connect({
    token,
    modelId: "scribe_v2_realtime",
    microphone: {
      echoCancellation: true,
      noiseSuppression: true,
      autoGainControl: true,
    },
  });

  connection.on(RealtimeEvents.PARTIAL_TRANSCRIPT, (data) => {
    document.getElementById("live").textContent = data.text;
  });

  connection.on(RealtimeEvents.COMMITTED_TRANSCRIPT, (data) => {
    const el = document.createElement("p");
    el.textContent = data.text;
    document.getElementById("transcripts").appendChild(el);
    document.getElementById("live").textContent = "";
  });

  document.getElementById("stop").addEventListener("click", () => {
    connection.close();
  });
}

import { Scribe, RealtimeEvents, AudioFormat } from "@elevenlabs/client";

async function transcribeFile(file) {
  const token = await fetchToken();

  const connection = Scribe.connect({
    token,
    modelId: "scribe_v2_realtime",
    audioFormat: AudioFormat.PCM_16000,
    sampleRate: 16000,
  });

  connection.on(RealtimeEvents.COMMITTED_TRANSCRIPT, (data) => {
    console.log("Transcript:", data.text);
  });

  // Decode audio file
  const arrayBuffer = await file.arrayBuffer();
  const audioContext = new AudioContext({ sampleRate: 16000 });
  const audioBuffer = await audioContext.decodeAudioData(arrayBuffer);

  // Convert to PCM16
  const channelData = audioBuffer.getChannelData(0);
  const pcmData = new Int16Array(channelData.length);

  for (let i = 0; i < channelData.length; i++) {
    const sample = Math.max(-1, Math.min(1, channelData[i]));
    pcmData[i] = sample < 0 ? sample * 32768 : sample * 32767;
  }

  // Send in chunks
  const chunkSize = 4096;
  for (let offset = 0; offset < pcmData.length; offset += chunkSize) {
    const chunk = pcmData.slice(offset, offset + chunkSize);
    const bytes = new Uint8Array(chunk.buffer);
    const base64 = btoa(String.fromCharCode(...bytes));

    connection.send({ audioBase64: base64 });
    await new Promise((resolve) => setTimeout(resolve, 50));
  }

  // Commit and close
  connection.commit();
}

connection.on(RealtimeEvents.COMMITTED_TRANSCRIPT, (data) => {
  console.log("Committed:", data.text);
});

const handler = (data) => console.log(data.text);
connection.on(RealtimeEvents.COMMITTED_TRANSCRIPT, handler);

// Later
connection.off(RealtimeEvents.COMMITTED_TRANSCRIPT, handler);

connection.send({
  audioBase64: base64AudioChunk,
  commit: false, // Optional: commit immediately
  sampleRate: 16000, // Optional: override sample rate
  previousText: "Previous transcription text", // Optional: context from a previous transcription
});

connection.commit();

connection.close();

interface WordsItem {
  text?: string; // Word text
  start?: number; // Start time in seconds
  end?: number; // End time in seconds
  type?: "word" | "spacing"; // Token type
  speaker_id?: string; // Speaker identifier
}

import { Scribe, CommitStrategy } from '@elevenlabs/client';

// Manual (default): you control when to commit
const connection = Scribe.connect({
  token,
  modelId: 'scribe_v2_realtime',
  audioFormat: AudioFormat.PCM_16000,
  sampleRate: 16000,
  commitStrategy: CommitStrategy.MANUAL,
});

// Send audio, then commit when ready
connection.send({ audioBase64: chunk });
connection.commit();

// Voice Activity Detection: Scribe detects silences and commits automatically
const connection = Scribe.connect({
  token,
  modelId: 'scribe_v2_realtime',
  microphone: { echoCancellation: true },
  commitStrategy: CommitStrategy.VAD,
});

import { Scribe, RealtimeEvents, CommitStrategy } from "@elevenlabs/client";

async function startTranscription() {
  const token = await fetchToken();

  const connection = Scribe.connect({
    token,
    modelId: "scribe_v2_realtime",
    commitStrategy: CommitStrategy.VAD,
    microphone: {
      echoCancellation: true,
      noiseSuppression: true,
    },
  });

  connection.on(RealtimeEvents.SESSION_STARTED, (data) => {
    console.log("Session started:", data.session_id);
  });

  connection.on(RealtimeEvents.PARTIAL_TRANSCRIPT, (data) => {
    document.getElementById("live").textContent = data.text;
  });

  connection.on(RealtimeEvents.COMMITTED_TRANSCRIPT, (data) => {
    const el = document.createElement("p");
    el.textContent = data.text;
    document.getElementById("transcripts").appendChild(el);
    document.getElementById("live").textContent = "";
  });

  connection.on(RealtimeEvents.ERROR, (error) => {
    console.error("Scribe error:", error);
  });

  // Stop button
  document.getElementById("stop").addEventListener("click", () => {
    connection.close();
  });
}

document.getElementById("start").addEventListener("click", startTranscription);