audio-transcripter/dist/transcriber.js

Lightweight TypeScript library for transcribing audio files using Google Gemini 2.0 models. Supports local files, remote URLs, and Blobs.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.transcribeAudio = transcribeAudio;
const file_helper_1 = require("./utils/file-helper");
const genAi_1 = require("./utils/genAi");
async function transcribeAudio(input, options = {}) {
    try {
        // Destructure with default values and types
        const { style = "accurate", language = null, context = null, sourceType = "local", } = options;
        // Step 1: Get file buffer
        const buffer = await (0, file_helper_1.getFileBuffer)(input, sourceType);
        if (!buffer) {
            return null;
        }
        // Step 2: Create file object
        const file = (0, file_helper_1.createFileFromBuffer)(buffer, input, sourceType);
        // Step 3: Upload file
        const mimeType = sourceType === "buffer" ? "audio/wav" : (0, file_helper_1.getMimeType)(input);
        const uploadResult = await (0, genAi_1.uploadFileToGenAI)(file, mimeType);
        if (!uploadResult) {
            return null;
        }
        // Step 4: Build prompt
        const prompt = (0, genAi_1.buildTranscriptionPrompt)(style, language, context);
        // Step 5: Generate transcription
        return await (0, genAi_1.generateTranscription)(prompt, uploadResult.uri, uploadResult.mimeType);
    }
    catch (err) {
        console.error("[error] Failed to transcribe:", err instanceof Error ? err.message : String(err));
        return null;
    }
}