whisper-node-ts

Node.js bindings for OpenAI's Whisper.

Base on whisper-node

Features

• Output transcripts to JSON (also .txt .srt .vtt)
• Optimized for CPU (Including Apple Silicon ARM)
• Timestamp precision to single word

Installation

1. Add dependency to project

npm install whisper-node-ts

2. Download whisper model of choice

npx whisper-node-ts download

Usage

import whisper from "whisper-node-ts";

const transcript = await whisper("example/sample.wav");

console.log(transcript); // output: [ {start,end,speech} ]

Output (JSON)

[
  {
    start: "00:00:14.310", // time stamp begin
    end: "00:00:16.480", // time stamp end
    speech: "howdy" // transcription
  }
];

Usage with Additional Options

import whisper from 'whisper-node-ts';

const filePath = "example/sample.wav", // required

const options = {
  modelName: "tiny.en",                   // default
  modelPath: "/custom/path/to/model.bin", // use model in a custom directory
  whisperOptions: {
    gen_file_txt: false,      // outputs .txt file
    gen_file_subtitle: false, // outputs .srt file
    gen_file_vtt: false,      // outputs .vtt file
    timestamp_size: 10,       // amount of dialogue per timestamp pair
    word_timestamps: true     // timestamp for every word
  }
}

const transcript = await whisper(filePath, options);

Made with

• Whisper OpenAI (using C++ port by: ggerganov)
• ShellJS

Roadmap

• [x] Support projects not using Typescript
• [x] Allow custom directory for storing models
• [ ] Config files as alternative to model download cli
• [ ] Remove path, shelljs and prompt-sync package for browser, react-native expo, and webassembly compatibility
• [ ] fluent-ffmpeg to support more audio formats
• [ ] Pyanote diarization for speaker names
• [ ] Implement WhisperX as optional alternative model for diarization and higher precision timestamps (as alternative to C++ version)

Modifying whisper-node-ts

npm run dev - runs nodemon and tsc on '/src/test.ts'

npm run build - runs tsc, outputs to '/dist' and gives sh permission to 'dist/download.js'