@remotion/install-whisper-cppv4.0.115

With Whisper.cpp, you can transcribe audio locally on your machine.
This package provides easy to use cross-platform functions to install Whisper.cpp and a model.

Remotion CLI
npm
bun
pnpm
yarn

npx remotion add @remotion/install-whisper-cpp

npm i --save-exact @remotion/install-whisper-cpp@4.0.434

This assumes you are currently using v4.0.434 of Remotion.
Also update remotion and all `@remotion/*` packages to the same version.
Remove all ^ character in front of the version numbers of it as it can lead to a version conflict.

pnpm i @remotion/install-whisper-cpp@4.0.434

bun i @remotion/install-whisper-cpp@4.0.434

yarn --exact add @remotion/install-whisper-cpp@4.0.434

Example usage

Install Whisper 1.5.5 (the latest version at the time of writing that we find works well and supports token-level timestamps) and the medium.en model to the whisper.cpp folder.

install-whisper.cpp
import path from 'path';
import {downloadWhisperModel, installWhisperCpp, transcribe, toCaptions} from '@remotion/install-whisper-cpp';
import fs from 'fs';

const to = path.join(process.cwd(), 'whisper.cpp');

await installWhisperCpp({
  to,
  version: '1.5.5',
});

await downloadWhisperModel({
  model: 'medium.en',
  folder: to,
});

// Convert the audio to a 16KHz wav file first if needed:
// import {execSync} from 'child_process';
// execSync('ffmpeg -i /path/to/audio.mp4 -ar 16000 /path/to/audio.wav -y');

const whisperCppOutput = await transcribe({
  model: 'medium.en',
  whisperPath: to,
  whisperCppVersion: '1.5.5',
  inputPath: '/path/to/audio.wav',
  tokenLevelTimestamps: true,
});

// Optional: Apply our recommended postprocessing
const {captions} = toCaptions({
  whisperCppOutput,
});

fs.writeFileSync('captions.json', JSON.stringify(captions, null, 2));