把这个API 保存为接口，通过其他函数导入. 云函数名字我设置为 t
参考：https://github.com/LokerL/tts-vue/blob/main/electron/utils/edge-api.ts
第一步：

const { randomBytes } = require("crypto");
const { WebSocket } = require("ws");
var log4js = require("log4js");
var logger = log4js.getLogger();
const FORMAT_CONTENT_TYPE = new Map([
  ["raw-16khz-16bit-mono-pcm", "audio/basic"],
  ["raw-48khz-16bit-mono-pcm", "audio/basic"],
  ["raw-8khz-8bit-mono-mulaw", "audio/basic"],
  ["raw-8khz-8bit-mono-alaw", "audio/basic"],

  ["raw-16khz-16bit-mono-truesilk", "audio/SILK"],
  ["raw-24khz-16bit-mono-truesilk", "audio/SILK"],

  ["riff-16khz-16bit-mono-pcm", "audio/x-wav"],
  ["riff-24khz-16bit-mono-pcm", "audio/x-wav"],
  ["riff-48khz-16bit-mono-pcm", "audio/x-wav"],
  ["riff-8khz-8bit-mono-mulaw", "audio/x-wav"],
  ["riff-8khz-8bit-mono-alaw", "audio/x-wav"],

  ["audio-16khz-32kbitrate-mono-mp3", "audio/mpeg"],
  ["audio-16khz-64kbitrate-mono-mp3", "audio/mpeg"],
  ["audio-16khz-128kbitrate-mono-mp3", "audio/mpeg"],
  ["audio-24khz-48kbitrate-mono-mp3", "audio/mpeg"],
  ["audio-24khz-96kbitrate-mono-mp3", "audio/mpeg"],
  ["audio-24khz-160kbitrate-mono-mp3", "audio/mpeg"],
  ["audio-48khz-96kbitrate-mono-mp3", "audio/mpeg"],
  ["audio-48khz-192kbitrate-mono-mp3", "audio/mpeg"],

  ["webm-16khz-16bit-mono-opus", "audio/webm; codec=opus"],
  ["webm-24khz-16bit-mono-opus", "audio/webm; codec=opus"],

  ["ogg-16khz-16bit-mono-opus", "audio/ogg; codecs=opus; rate=16000"],
  ["ogg-24khz-16bit-mono-opus", "audio/ogg; codecs=opus; rate=24000"],
  ["ogg-48khz-16bit-mono-opus", "audio/ogg; codecs=opus; rate=48000"],
]);

class Service {
  ws = null;

  executorMap;
  bufferMap;

  timer = null;

  constructor() {
    this.executorMap = new Map();
    this.bufferMap = new Map();
  }

  async connect() {
    const connectionId = randomBytes(16).toString("hex").toLowerCase();
    let url = `wss://speech.platform.bing.com/consumer/speech/synthesize/readaloud/edge/v1?TrustedClientToken=6A5AA1D4EAFF4E9FB37E23D68491D6F4&ConnectionId=${connectionId}`;
    let ws = new WebSocket(url, {
      host: "speech.platform.bing.com",
      origin: "chrome-extension://jdiccldimpdaibmpdkjnbmckianbfold",
      headers: {
        "User-Agent":
          "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.66 Safari/537.36 Edg/103.0.1264.44",
      },
    });
    return new Promise((resolve, reject) => {
      ws.on("open", () => {
        resolve(ws);
      });
      ws.on("close", (code, reason) => {
        // 服务器会自动断开空闲超过30秒的连接
        this.ws = null;
        if (this.timer) {
          clearTimeout(this.timer);
          this.timer = null;
        }
        for (let [key, value] of this.executorMap) {
          value.reject(`连接已关闭: ${reason} ${code}`);
        }
        this.executorMap.clear();
        this.bufferMap.clear();
        logger.info(`连接已关闭： ${reason} ${code}`);
      });

      ws.on("message", (message, isBinary) => {
        let pattern = /X-RequestId:(?<id>[a-z|0-9]*)/;
        if (!isBinary) {
          let data = message.toString();
          if (data.includes("Path:turn.start")) {
            // 开始传输
            let matches = data.match(pattern);
            let requestId = matches.groups.id;
            this.bufferMap.set(requestId, Buffer.from([]));
          } else if (data.includes("Path:turn.end")) {
            // 结束传输
            let matches = data.match(pattern);
            let requestId = matches.groups.id;

            let executor = this.executorMap.get(requestId);
            if (executor) {
              this.executorMap.delete(matches.groups.id);
              let result = this.bufferMap.get(requestId);
              executor.resolve(result);
              logger.info(`传输完成：${requestId}……`);
            } else {
              logger.info(`请求已被丢弃：${requestId}`);
            }
          }
        } else if (isBinary) {
          let separator = "Path:audio\r\n";
          let data = message;
          let contentIndex = data.indexOf(separator) + separator.length;

          let headers = data.slice(2, contentIndex).toString();
          let matches = headers.match(pattern);
          let requestId = matches.groups.id;

          let content = data.slice(contentIndex);
          let buffer = this.bufferMap.get(requestId);
          if (buffer) {
            buffer = Buffer.concat([buffer, content], buffer.length + content.length);
            this.bufferMap.set(requestId, buffer);
          } else {
            logger.info(`请求已被丢弃：${requestId}`);
          }
        }
      });
      ws.on("error", (error) => {
        logger.error(`连接失败： ${error}`);
        reject(`连接失败： ${error}`);
      });
    });
  }

  async convert(ssml, format) {
    if (this.ws == null || this.ws.readyState != WebSocket.OPEN) {
      logger.info("准备连接服务器……");
      let connection = await this.connect();
      this.ws = connection;
      logger.info("连接成功！");
    }
    const requestId = randomBytes(16).toString("hex").toLowerCase();
    let result = new Promise((resolve, reject) => {
      // 等待服务器返回后这个方法才会返回结果
      this.executorMap.set(requestId, {
        resolve,
        reject,
      });
      // 发送配置消息
      let configData = {
        context: {
          synthesis: {
            audio: {
              metadataoptions: {
                sentenceBoundaryEnabled: "false",
                wordBoundaryEnabled: "false",
              },
              outputFormat: format,
            },
          },
        },
      };
      let configMessage =
        `X-Timestamp:${Date()}\r\n` +
        "Content-Type:application/json; charset=utf-8\r\n" +
        "Path:speech.config\r\n\r\n" +
        JSON.stringify(configData);
      this.ws.send(configMessage, (configError) => {
        if (configError) {
          logger.error(`配置请求发送失败：${requestId}\n`);
        }

        // 发送SSML消息
        let ssmlMessage =
          `X-Timestamp:${Date()}\r\n` +
          `X-RequestId:${requestId}\r\n` +
          `Content-Type:application/ssml+xml\r\n` +
          `Path:ssml\r\n\r\n` +
          ssml;
        this.ws.send(ssmlMessage, (ssmlError) => {
          if (ssmlError) {
            logger.error(`SSML消息发送失败：${requestId}\n`);
          }
        });
      });
    });

    // 收到请求，清除超时定时器
    if (this.timer) {
      logger.info("收到新的请求，清除超时定时器");
      clearTimeout(this.timer);
    }
    // 设置定时器，超过10秒没有收到请求，主动断开连接
    this.timer = setTimeout(() => {
      if (this.ws && this.ws.readyState == WebSocket.OPEN) {
        this.ws.close(1000);
        this.timer = null;
      }
    }, 10000);

    let data = await Promise.race([
      result,
      new Promise((resolve, reject) => {
        // 如果超过 20 秒没有返回结果，则清除请求并返回超时
        setTimeout(() => {
          this.executorMap.delete(requestId);
          this.bufferMap.delete(requestId);
          reject("转换超时");
        }, 10000);
      }),
    ]);
    return data;
  }
}

const service = new Service();
const retry = async function (fn, times, errorFn, failedMessage) {
  let reason = {
    message: failedMessage ?? "多次尝试后失败",
    errors: [],
  };
  for (let i = 0; i < times; i++) {
    try {
      return await fn();
    } catch (error) {
      if (errorFn) {
        errorFn(i, error);
      }
      reason.errors.push(error);
    }
  }
  throw reason;
};

const ra = async (text: string) => {
  try {
    // let format = "webm-24khz-16bit-mono-opus";
    let format = "audio-24khz-48kbitrate-mono-mp3";
    if (Array.isArray(format)) {
      throw `无效的音频格式：${format}`;
    }
    if (!FORMAT_CONTENT_TYPE.has(format)) {
      throw `无效的音频格式：${format}`;
    }

    let ssml = text;
    if (ssml == null) {
      throw `转换参数无效`;
    }
    let result = await retry(
      async () => {
        let result = await service.convert(ssml, format);
        return result;
      },
      3,
      (index, error) => {
        logger.error(`第${index}次转换失败：${error}`);
      },
      "服务器多次尝试后转换失败"
    );
    return result;
    // response.sendDate = true;
    // response
    //   .status(200)
    //   .setHeader("Content-Type", FORMAT_CONTENT_TYPE.get(format));
    // response.end(result);
  } catch (error) {
    logger.error(`发生错误, ${error.message}`);
    // response.status(503).json(error);
  }
};

// ra(
//   `<speak xmlns="http://www.w3.org/2001/10/synthesis" xmlns:mstts="http://www.w3.org/2001/mstts" xmlns:emo="http://www.w3.org/2009/10/emotionml" version="1.0" xml:lang="en-US">          <voice name="zh-CN-XiaoxiaoNeural"><prosody rate="0%" pitch="0%">如果喜欢这个项目的话请点个 Star 吧。</prosody ></voice > </speak >`
// );
export default ra;

第二步:

import ra from '@/t';
import { basename } from 'path';

export default async function (ctx: FunctionContext) {
// 注意这个引入的speak文本,参数可以自己调节，比如语速之类的
  const result = await ra(
    `<speak xmlns="http://www.w3.org/2001/10/synthesis" xmlns:mstts="http://www.w3.org/2001/mstts" xmlns:emo="http://www.w3.org/2009/10/emotionml" version="1.0" xml:lang="en-US">          <voice name="zh-CN-XiaoxiaoNeural"><prosody rate="0%" pitch="0%">如果喜欢这个项目的话请点个 Star 吧。</prosody ></voice > </speak >`
  );

  const buffer = Buffer.from(result);
  const filename = `test-${new Date().getTime()}.mp3`;

  ctx.response.set('Content-Type', 'audio/mpeg');
  ctx.response.set('Content-Disposition', `attachment; filename="${basename(filename)}"`);
  ctx.response.set('Content-Length', buffer.length.toString());
  ctx.response.send(buffer);
  console.log(`File sent as ${filename}`);
}