Picovoice Wordmark
Start Building
Introduction
Introduction
AndroidC.NETiOSLinuxmacOSNode.jsPythonRaspberry PiWebWindows
AndroidC.NETiOSNode.jsPythonWeb
SummaryPicovoice picoLLMGPTQ
Introduction
AndroidC.NETFlutteriOSJavaLinuxmacOSNode.jsPythonRaspberry PiReactReact NativeRustWebWindows
AndroidC.NETFlutteriOSJavaNode.jsPythonReactReact NativeRustWeb
SummaryPicovoice LeopardAmazon TranscribeAzure Speech-to-TextGoogle ASRGoogle ASR (Enhanced)IBM Watson Speech-to-TextWhisper Speech-to-Text
FAQ
Introduction
AndroidC.NETFlutteriOSJavaLinuxmacOSNode.jsPythonRaspberry PiReactReact NativeRustWebWindows
AndroidC.NETFlutteriOSJavaNode.jsPythonReactReact NativeRustWeb
SummaryPicovoice Cheetah
FAQ
Introduction
AndroidC.NETiOSLinuxmacOSNode.jsPythonRaspberry PiWebWindows
AndroidC.NETiOSNode.jsPythonWeb
SummaryAmazon PollyAzure TTSElevenLabsOpenAI TTSPicovoice Orca
Introduction
AndroidCiOSLinuxmacOSPythonRaspberry PiWebWindows
AndroidCiOSPythonWeb
SummaryPicovoice KoalaMozilla RNNoise
Introduction
AndroidCiOSLinuxmacOSNode.jsPythonRaspberry PiWebWindows
AndroidCNode.jsPythoniOSWeb
SummaryPicovoice EaglepyannoteSpeechBrainWeSpeaker
Introduction
AndroidCiOSLinuxmacOSPythonRaspberry PiWebWindows
AndroidCiOSPythonWeb
SummaryPicovoice FalconAmazon TranscribeAzure Speech-to-TextGoogle Speech-to-Textpyannote
Introduction
AndroidArduinoCChrome.NETEdgeFirefoxFlutteriOSJavaLinuxmacOSMicrocontrollerNode.jsPythonRaspberry PiReactReact NativeRustSafariUnityWebWindows
AndroidC.NETFlutteriOSJavaMicrocontrollerNode.jsPythonReactReact NativeRustUnityWeb
SummaryPorcupineSnowboyPocketSphinx
Wake Word TipsFAQ
Introduction
AndroidCChrome.NETEdgeFirefoxFlutteriOSJavaLinuxmacOSNode.jsPythonRaspberry PiReactReact NativeRustSafariUnityWebWindows
AndroidC.NETFlutteriOSJavaNode.jsPythonReactReact NativeRustUnityWeb
SummaryPicovoice RhinoGoogle DialogflowAmazon LexIBM WatsonMicrosoft LUIS
Expression SyntaxFAQ
Introduction
AndroidC.NETiOSLinuxmacOSNode.jsPythonRaspberry PiRustWebWindows
AndroidC.NETiOSNode.jsPythonRustWeb
SummaryPicovoice CobraWebRTC VAD
FAQ
Introduction
AndroidC.NETFlutteriOSNode.jsPythonReact NativeRustUnityWeb
AndroidC.NETFlutteriOSNode.jsPythonReact NativeRustUnityWeb
Introduction
C.NETNode.jsPython
C.NETNode.jsPython
FAQGlossary

Cheetah Speech-to-Text
Node.js Quick Start

Platforms

  • Linux (x86_64)
  • macOS (x86_64, arm64)
  • Windows (x86_64, arm64)
  • Raspberry Pi (3, 4, 5)

Requirements

  • Picovoice Account & AccessKey
  • Node.js 18+
  • npm

Picovoice Account & AccessKey

Signup or Login to Picovoice Console to get your AccessKey. Make sure to keep your AccessKey secret.

Quick Start

Setup

  1. Install Node.js.

  2. Install the cheetah-node npm package:

npm install @picovoice/cheetah-node

Usage

Create an instance of the engine:

const Cheetah = require("@picovoice/cheetah-node");
const accessKey = "${ACCESS_KEY}";
const cheetah = new Cheetah(accessKey);

Transcribe audio:

function getNextAudioFrame() {
// ...
return audioFrame;
}
while (true) {
const audioFrame = getNextAudioFrame();
const [partialTranscript, isEndpoint] = cheetah.process(audioFrame);
if (isEndpoint) {
finalTranscript = cheetah.flush()
}
}

Release resources explicitly when done with Cheetah Streaming Speech-to-Text:

cheetah.release()

Model File

The Cheetah Speech-to-Text Node.js SDK comes preloaded with a default English language model (.pv file). Default models for other supported languages can be found in the Cheetah Speech-to-Text GitHub repository.

Create custom language models using the Picovoice Console. Here you can train language models with custom vocabulary and boost words in the existing vocabulary.

Pass in the .pv file via the modelPath parameter in the options argument of the Cheetah Speech-to-Text constructor:

const handle = new Cheetah(accessKey, { modelPath: "${MODEL_PATH}"});

Demo

For the Cheetah Streaming Speech-to-Text Node.js SDK, we offer demo applications that demonstrate how to use the Speech-to-Text engine on real-time audio streams (i.e. microphone input) and audio files.

Setup

Install the Cheetah Streaming Speech-to-Text demo package:

npm install -g @picovoice/cheetah-node-demo

This package installs command-line utilities for the Cheetah Streaming Speech-to-Text Node.js demos.

Usage

Use the --help flag to see the usage options for the demo:

cheetah-demo-mic --help

Ensure you have a working microphone connected to your system and run the following command to transcribe audio live:

cheetah-demo-mic --access_key ${ACCESS_KEY}

For more information on our Cheetah Streaming Speech-to-Text demos for Node.js, head over to our GitHub repository.

Resources

Packages

  • @picovoice/cheetah-node on the npm registry
  • @picovoice/cheetah-node-demo on the npm registry

API

  • @picovoice/cheetah-node API Docs

GitHub

  • Cheetah Streaming Speech-to-Text Node.js SDK on GitHub
  • Cheetah Streaming Speech-to-Text Node.js Demos on GitHub

Benchmark

  • Real-time Transcription Benchmark

Was this doc helpful?

Issue with this doc?

Report a GitHub Issue
Cheetah Speech-to-Text Node.js Quick Start
  • Platforms
  • Requirements
  • Picovoice Account & AccessKey
  • Quick Start
  • Setup
  • Usage
  • Model File
  • Demo
  • Setup
  • Usage
  • Resources
Voice AI
  • Leopard Speech-to-Text
  • Cheetah Streaming Speech-to-Text
  • Orca Text-to-Speech
  • Koala Noise Suppression
  • Eagle Speaker Recognition
  • Falcon Speaker Diarization
  • Porcupine Wake Word
  • Rhino Speech-to-Intent
  • Cobra Voice Activity Detection
Local LLM
  • picoLLM Inference
  • picoLLM Compression
  • picoLLM GYM
Resources
  • Docs
  • Console
  • Blog
  • Use Cases
  • Playground
Sales & Services
  • Consulting
  • Foundation Plan
  • Enterprise Plan
  • Enterprise Support
Company
  • About us
  • Careers
Follow Picovoice
  • LinkedIn
  • GitHub
  • X
  • YouTube
  • AngelList
Subscribe to our newsletter
Terms of Use
Privacy Policy
© 2019-2025 Picovoice Inc.