Local Audio Transcription

Transcribes your local audio files to assist in creating captions.

Uses some cool tools 🛠️:

• 🌳 Node.js
• 🟦 Typescript
• ☁️ Google Cloud Speech-to-Text API
  
  
• 🧹 Rimraf
• 🌳 ts-node
• 🔄 nodemon

Getting Started

1. npm install to install all dependencies
2. Replace gc-auth.json with your own service account key
3. Place your audio file in the root of the project, or create your directory.
4. Update the filePath variable with your audio file's name.
5. Run the application in the terminal with npm run start:dev

Configuration

The transcribeAudio function in index.ts configures the Speech-to-Text API request with the following options:

• encoding: The audio encoding format (e.g., MP3)
• sampleRateHertz: The sample rate of the audio file in Hertz
• languageCode: The language code of the audio (e.g., 'en-US' for English)
• maxAlternatives: The maximum number of alternative transcriptions to return
• enableWordTimeOffsets: When enabled, the API will include the start and end times for each word in the transcribed text, allowing you to map the words back to the corresponding audio segments.
• enableWordConfidence: If enabled, API will include a confidence score for each word representing an estimation of how likely the transcription is correct.
• enableAutomaticPunctuation: Enable API to automatically insert punctuation without requiring explicit dictation.