service/tts.js

Service that fetches available voices and converts text to speech using EdgeTTS, returning base64 audio.

// Source: https://github.com/Lucassssss/eechat | License: Apache-2.0 | Copyright 2024 9tharts <lucas@9tharts.com>
// Provided via justclaw.it.com; keep this notice with the code.
const { Service } = require('egg')
const { EdgeTTS, VoiceList } = require('node-edge-tts')
const fs = require('fs')
const path = require('path')
const paths = require('../../config/paths')

module.exports = class TtsService extends Service {
  constructor(ctx) {
    super(ctx)
    this.tempDir = path.join(paths.tmpPath, 'tts')
    // 确保临时目录存在
    if (!fs.existsSync(this.tempDir)) {
      fs.mkdirSync(this.tempDir, { recursive: true })
    }
  }

  /**
   * 获取可用的语音列表
   * @returns {Promise<Array>} 语音列表
   */
  async getVoices() {
    try {
      // 从 Bing API 获取语音列表
      const response = await this.ctx.curl(
    

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