import { createClient } from "@deepgram/sdk";
import { readFileSync } from "fs";
import { config } from "../config.js";
export interface TranscriptionResult {
text: string;
}
/**
* Transcribe an audio file using Deepgram
*/
export async function transcribeAudio(audioFilePath: string): Promise<TranscriptionResult> {
if (!config.deepgramApiKey) {
throw new Error("Deepgram API key not configured. Set it in config.json or DEEPGRAM_API_KEY environment variable.");
}
const deepgram = createClient(config.deepgramApiKey);
const audioBuffer = readFileSync(audioFilePath);
const { result, error } = await deepgram.listen.prerecorded.transcribeFile(
audioBuffer,
{
model: "nova-2",
smart_format: true,
punctuate: true,
paragraphs: true,
}
);
if (error) {
throw new Error(`Deepgram error: ${error.message}`);
}
const transcript = result?.results?.channels?.[0]?.alternatives?.[0]?.transcript || "";
return { text: transcript };
}
