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- <span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js"><span class="cstat-no" title="statement not covered" >import WebSocket from 'ws';<span class="fstat-no" title="function not covered" ><span class="branch-0 cbranch-no" title="branch not covered" ></span></span></span>
- import fs from 'fs';
- import path from 'path';
- import { config } from '../../config';
- import { VoiceParams } from '../../types';
-
- // 阿里云百炼 Qwen-TTS WebSocket 实时语音合成
- // 文档: https://help.aliyun.com/zh/model-studio/qwen-tts-realtime
- // 支持流式输入,适合长文本
-
- <span class="cstat-no" title="statement not covered" >export class AliyunRealtimeTtsProvider {</span>
- <span class="cstat-no" title="statement not covered" > private apiKey: string;</span>
- <span class="cstat-no" title="statement not covered" > private model: string;</span>
- <span class="cstat-no" title="statement not covered" > private voice: string;</span>
- <span class="cstat-no" title="statement not covered" > private baseUrl = 'wss://dashscope.aliyuncs.com/api-ws/v1/realtime';</span>
-
- <span class="cstat-no" title="statement not covered" > constructor() {</span>
- // 从 models.json 统一获取百炼配置(已消除 dashscope 冗余配置源)
- <span class="cstat-no" title="statement not covered" > const vendorConfig = (config.models as any).vendors?.bailian;</span>
- <span class="cstat-no" title="statement not covered" > this.apiKey = vendorConfig?.apiKey || '';</span>
- <span class="cstat-no" title="statement not covered" > this.model = this.model || 'qwen3-tts-instruct-flash-realtime';</span>
- <span class="cstat-no" title="statement not covered" > this.voice = (config.models as any).tts?.defaultVoice || 'Cherry';</span>
- <span class="cstat-no" title="statement not covered" > }</span>
-
- // 语音合成(WebSocket 流式)
- <span class="cstat-no" title="statement not covered" > async synthesize(</span>
- <span class="cstat-no" title="statement not covered" > text: string,</span>
- <span class="cstat-no" title="statement not covered" > voiceId: string,</span>
- <span class="cstat-no" title="statement not covered" > params: VoiceParams,</span>
- <span class="cstat-no" title="statement not covered" > outputPath: string</span>
- <span class="cstat-no" title="statement not covered" > ): Promise<string> {</span>
- <span class="cstat-no" title="statement not covered" > return new Promise((resolve, reject) => {</span>
- <span class="cstat-no" title="statement not covered" > const voice = voiceId || this.voice;</span>
- <span class="cstat-no" title="statement not covered" > const audioChunks: Buffer[] = [];</span>
- <span class="cstat-no" title="statement not covered" > let sessionId: string;</span>
-
- <span class="cstat-no" title="statement not covered" > console.log('🔊 [Qwen Realtime TTS] 建立 WebSocket 连接...');</span>
-
- <span class="cstat-no" title="statement not covered" > const ws = new WebSocket(this.baseUrl, {</span>
- <span class="cstat-no" title="statement not covered" > headers: {</span>
- <span class="cstat-no" title="statement not covered" > 'Authorization': `Bearer ${this.apiKey}`,</span>
- <span class="cstat-no" title="statement not covered" > 'X-DashScope-App': 'audio-tts',</span>
- <span class="cstat-no" title="statement not covered" > },</span>
- <span class="cstat-no" title="statement not covered" > });</span>
-
- <span class="cstat-no" title="statement not covered" > ws.on('open', () => {</span>
- <span class="cstat-no" title="statement not covered" > console.log('✅ [Qwen Realtime TTS] 连接已建立');</span>
- <span class="cstat-no" title="statement not covered" > });</span>
-
- <span class="cstat-no" title="statement not covered" > ws.on('message', (data) => {</span>
- <span class="cstat-no" title="statement not covered" > try {</span>
- <span class="cstat-no" title="statement not covered" > const message = JSON.parse(data.toString());</span>
-
- <span class="cstat-no" title="statement not covered" > switch (message.event) {</span>
- <span class="cstat-no" title="statement not covered" > case 'session.configed':</span>
- // 配置成功,发送文本
- <span class="cstat-no" title="statement not covered" > sessionId = message.session_id;</span>
- <span class="cstat-no" title="statement not covered" > console.log('📝 [Qwen Realtime TTS] Session ID:', sessionId);</span>
-
- // 构建指令
- <span class="cstat-no" title="statement not covered" > const instructions: string[] = [];</span>
- <span class="cstat-no" title="statement not covered" > if (params.speed !== 1) {</span>
- <span class="cstat-no" title="statement not covered" > const speedDesc = params.speed > 1 ? '语速较快' : '语速较慢';</span>
- <span class="cstat-no" title="statement not covered" > instructions.push(speedDesc);</span>
- <span class="cstat-no" title="statement not covered" > }</span>
- <span class="cstat-no" title="statement not covered" > if (params.pitch !== 0) {</span>
- <span class="cstat-no" title="statement not covered" > const pitchDesc = params.pitch > 0 ? '音调较高' : '音调较低';</span>
- <span class="cstat-no" title="statement not covered" > instructions.push(pitchDesc);</span>
- <span class="cstat-no" title="statement not covered" > }</span>
-
- // 使用 server_commit 模式:直接发送完整文本,服务端自动处理分段
- <span class="cstat-no" title="statement not covered" > const textMessage = {</span>
- <span class="cstat-no" title="statement not covered" > event: 'input_text_buffer.append',</span>
- <span class="cstat-no" title="statement not covered" > context: {</span>
- <span class="cstat-no" title="statement not covered" > text: text,</span>
- <span class="cstat-no" title="statement not covered" > },</span>
- <span class="cstat-no" title="statement not covered" > };</span>
- <span class="cstat-no" title="statement not covered" > ws.send(JSON.stringify(textMessage));</span>
- <span class="cstat-no" title="statement not covered" > console.log('📤 [Qwen Realtime TTS] 文本已发送,长度:', text.length);</span>
-
- // 发送 commit 触发合成
- <span class="cstat-no" title="statement not covered" > const commitMessage = {</span>
- <span class="cstat-no" title="statement not covered" > event: 'input_text_buffer.commit',</span>
- <span class="cstat-no" title="statement not covered" > };</span>
- <span class="cstat-no" title="statement not covered" > ws.send(JSON.stringify(commitMessage));</span>
- <span class="cstat-no" title="statement not covered" > console.log('📤 [Qwen Realtime TTS] 触发语音合成...');</span>
- <span class="cstat-no" title="statement not covered" > break;</span>
-
- <span class="cstat-no" title="statement not covered" > case 'audio.stream':</span>
- // 接收音频数据
- <span class="cstat-no" title="statement not covered" > if (message.data) {</span>
- <span class="cstat-no" title="statement not covered" > const audioBuffer = Buffer.from(message.data, 'base64');</span>
- <span class="cstat-no" title="statement not covered" > audioChunks.push(audioBuffer);</span>
- <span class="cstat-no" title="statement not covered" > }</span>
- <span class="cstat-no" title="statement not covered" > break;</span>
-
- <span class="cstat-no" title="statement not covered" > case 'audio.finish':</span>
- // 合成完成
- <span class="cstat-no" title="statement not covered" > console.log('✅ [Qwen Realtime TTS] 合成完成');</span>
-
- // 保存文件
- <span class="cstat-no" title="statement not covered" > if (audioChunks.length > 0) {</span>
- <span class="cstat-no" title="statement not covered" > const dir = path.dirname(outputPath);</span>
- <span class="cstat-no" title="statement not covered" > if (!fs.existsSync(dir)) {</span>
- <span class="cstat-no" title="statement not covered" > fs.mkdirSync(dir, { recursive: true });</span>
- <span class="cstat-no" title="statement not covered" > }</span>
-
- <span class="cstat-no" title="statement not covered" > const finalPath = outputPath.endsWith('.mp3') ? outputPath : outputPath.replace(/\.[^.]+$/, '.mp3');</span>
- <span class="cstat-no" title="statement not covered" > const finalBuffer = Buffer.concat(audioChunks);</span>
- <span class="cstat-no" title="statement not covered" > fs.writeFileSync(finalPath, finalBuffer);</span>
- <span class="cstat-no" title="statement not covered" > console.log(`✅ [Qwen Realtime TTS] 文件已保存: ${finalPath}, 大小: ${finalBuffer.length} bytes`);</span>
- <span class="cstat-no" title="statement not covered" > ws.close();</span>
- <span class="cstat-no" title="statement not covered" > resolve(finalPath);</span>
- <span class="cstat-no" title="statement not covered" > } else {</span>
- <span class="cstat-no" title="statement not covered" > ws.close();</span>
- <span class="cstat-no" title="statement not covered" > reject(new Error('Qwen Realtime TTS 未返回音频数据'));</span>
- <span class="cstat-no" title="statement not covered" > }</span>
- <span class="cstat-no" title="statement not covered" > break;</span>
-
- <span class="cstat-no" title="statement not covered" > case 'task.finished':</span>
- // 任务完成
- <span class="cstat-no" title="statement not covered" > ws.close();</span>
- <span class="cstat-no" title="statement not covered" > resolve(outputPath);</span>
- <span class="cstat-no" title="statement not covered" > break;</span>
-
- <span class="cstat-no" title="statement not covered" > case 'error':</span>
- <span class="cstat-no" title="statement not covered" > console.error('❌ [Qwen Realtime TTS] 错误:', message.message);</span>
- <span class="cstat-no" title="statement not covered" > ws.close();</span>
- <span class="cstat-no" title="statement not covered" > reject(new Error(`Qwen Realtime TTS 错误: ${message.message}`));</span>
- <span class="cstat-no" title="statement not covered" > break;</span>
-
- <span class="cstat-no" title="statement not covered" > default:</span>
- // 忽略其他消息
- <span class="cstat-no" title="statement not covered" > break;</span>
- <span class="cstat-no" title="statement not covered" > }</span>
- <span class="cstat-no" title="statement not covered" > } catch (err) {</span>
- <span class="cstat-no" title="statement not covered" > console.error('❌ [Qwen Realtime TTS] 解析消息失败:', err);</span>
- <span class="cstat-no" title="statement not covered" > }</span>
- <span class="cstat-no" title="statement not covered" > });</span>
-
- <span class="cstat-no" title="statement not covered" > ws.on('error', (err) => {</span>
- <span class="cstat-no" title="statement not covered" > console.error('❌ [Qwen Realtime TTS] WebSocket 错误:', err.message);</span>
- <span class="cstat-no" title="statement not covered" > reject(err);</span>
- <span class="cstat-no" title="statement not covered" > });</span>
-
- <span class="cstat-no" title="statement not covered" > ws.on('close', () => {</span>
- <span class="cstat-no" title="statement not covered" > console.log('🔌 [Qwen Realtime TTS] 连接已关闭');</span>
- <span class="cstat-no" title="statement not covered" > });</span>
-
- // 超时处理
- <span class="cstat-no" title="statement not covered" > setTimeout(() => {</span>
- <span class="cstat-no" title="statement not covered" > if (ws.readyState === WebSocket.OPEN) {</span>
- <span class="cstat-no" title="statement not covered" > ws.close();</span>
- <span class="cstat-no" title="statement not covered" > reject(new Error('Qwen Realtime TTS 请求超时'));</span>
- <span class="cstat-no" title="statement not covered" > }</span>
- <span class="cstat-no" title="statement not covered" > }, 120000); // 2分钟超时</span>
- <span class="cstat-no" title="statement not covered" > });</span>
- <span class="cstat-no" title="statement not covered" > }</span>
- <span class="cstat-no" title="statement not covered" >}</span>
- </pre></td></tr></table></pre>
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