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write-server/src/lib/voice.ts

@@ -0,0 +1,35 @@
+import { DEEPSEEK_API_KEY, DEEPSEEK_BASE_URL } from "@/lib/config";
+
+// 语音转文字：使用 OpenAI Whisper API 或其他兼容服务
+const WHISPER_API_KEY = process.env.WHISPER_API_KEY || DEEPSEEK_API_KEY || "";
+const WHISPER_API_BASE = process.env.WHISPER_API_BASE || (DEEPSEEK_API_KEY ? DEEPSEEK_BASE_URL : "https://api.openai.com/v1");
+const WHISPER_MODEL = process.env.WHISPER_MODEL || "whisper-1";
+
+export async function transcribeAudio(audioBuffer: ArrayBuffer, filename: string): Promise<string> {
+  if (!WHISPER_API_KEY) {
+    throw new Error("未配置语音转文字 API（设置 WHISPER_API_KEY 或 DEEPSEEK_API_KEY）");
+  }
+
+  const formData = new FormData();
+  const blob = new Blob([audioBuffer], { type: "audio/ogg" });
+  formData.append("file", blob, filename);
+  formData.append("model", WHISPER_MODEL);
+  formData.append("language", "zh");
+
+  const url = `${WHISPER_API_BASE}/audio/transcriptions`;
+  const res = await fetch(url, {
+    method: "POST",
+    headers: {
+      "Authorization": `Bearer ${WHISPER_API_KEY}`,
+    },
+    body: formData,
+  });
+
+  if (!res.ok) {
+    const err = await res.text();
+    throw new Error(`语音转文字失败: ${res.status} ${err}`);
+  }
+
+  const data = await res.json() as { text?: string };
+  return data.text || "";
+}