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TYt50
335
modules/tts/tts-api.js
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335
modules/tts/tts-api.js
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/**
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* 火山引擎 TTS API 封装
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* V3 单向流式 + V1试用
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*/
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const V3_URL = 'https://openspeech.bytedance.com/api/v3/tts/unidirectional';
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const FREE_V1_URL = 'https://hstts.velure.top';
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export const FREE_VOICES = [
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{ key: 'female_1', name: '桃夭', tag: '甜蜜仙子', gender: 'female' },
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{ key: 'female_2', name: '霜华', tag: '清冷仙子', gender: 'female' },
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{ key: 'female_3', name: '顾姐', tag: '御姐烟嗓', gender: 'female' },
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{ key: 'female_4', name: '苏菲', tag: '优雅知性', gender: 'female' },
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{ key: 'female_5', name: '嘉欣', tag: '港风甜心', gender: 'female' },
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{ key: 'female_6', name: '青梅', tag: '清秀少年音', gender: 'female' },
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{ key: 'female_7', name: '可莉', tag: '奶音萝莉', gender: 'female' },
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{ key: 'male_1', name: '夜枭', tag: '磁性低音', gender: 'male' },
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{ key: 'male_2', name: '君泽', tag: '温润公子', gender: 'male' },
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{ key: 'male_3', name: '沐阳', tag: '沉稳暖男', gender: 'male' },
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{ key: 'male_4', name: '梓辛', tag: '青春少年', gender: 'male' },
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];
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export const FREE_DEFAULT_VOICE = 'female_1';
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// ============ 内部工具 ============
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async function proxyFetch(url, options = {}) {
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const proxyUrl = '/proxy/' + encodeURIComponent(url);
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return fetch(proxyUrl, options);
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}
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function safeTail(value) {
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return value ? String(value).slice(-4) : '';
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}
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// ============ V3 鉴权模式 ============
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/**
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* V3 单向流式合成（完整下载）
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*/
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export async function synthesizeV3(params, authHeaders = {}) {
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const {
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appId,
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accessKey,
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resourceId = 'seed-tts-2.0',
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uid = 'st_user',
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text,
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speaker,
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model,
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format = 'mp3',
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sampleRate = 24000,
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speechRate = 0,
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loudnessRate = 0,
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emotion,
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emotionScale,
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contextTexts,
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explicitLanguage,
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disableMarkdownFilter = true,
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disableEmojiFilter,
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enableLanguageDetector,
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maxLengthToFilterParenthesis,
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postProcessPitch,
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cacheConfig,
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} = params;
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if (!appId || !accessKey || !text || !speaker) {
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throw new Error('缺少必要参数: appId/accessKey/text/speaker');
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}
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console.log('[TTS API] V3 request:', {
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appIdTail: safeTail(appId),
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accessKeyTail: safeTail(accessKey),
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resourceId,
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speaker,
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textLength: text.length,
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hasContextTexts: !!contextTexts?.length,
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hasEmotion: !!emotion,
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});
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const additions = {};
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if (contextTexts?.length) additions.context_texts = contextTexts;
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if (explicitLanguage) additions.explicit_language = explicitLanguage;
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if (disableMarkdownFilter) additions.disable_markdown_filter = true;
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if (disableEmojiFilter) additions.disable_emoji_filter = true;
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if (enableLanguageDetector) additions.enable_language_detector = true;
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if (Number.isFinite(maxLengthToFilterParenthesis)) {
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additions.max_length_to_filter_parenthesis = maxLengthToFilterParenthesis;
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}
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if (Number.isFinite(postProcessPitch) && postProcessPitch !== 0) {
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additions.post_process = { pitch: postProcessPitch };
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}
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if (cacheConfig && typeof cacheConfig === 'object') {
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additions.cache_config = cacheConfig;
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}
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const body = {
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user: { uid },
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req_params: {
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text,
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speaker,
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audio_params: {
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format,
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sample_rate: sampleRate,
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speech_rate: speechRate,
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loudness_rate: loudnessRate,
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},
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},
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};
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if (model) body.req_params.model = model;
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if (emotion) {
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body.req_params.audio_params.emotion = emotion;
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body.req_params.audio_params.emotion_scale = emotionScale || 4;
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}
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if (Object.keys(additions).length > 0) {
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body.req_params.additions = JSON.stringify(additions);
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}
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const resp = await proxyFetch(V3_URL, {
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method: 'POST',
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headers: authHeaders,
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body: JSON.stringify(body),
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});
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const logid = resp.headers.get('X-Tt-Logid') || '';
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if (!resp.ok) {
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const errText = await resp.text().catch(() => '');
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throw new Error(`V3 请求失败: ${resp.status} ${errText}${logid ? ` (logid: ${logid})` : ''}`);
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}
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const reader = resp.body.getReader();
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const decoder = new TextDecoder();
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const audioChunks = [];
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let usage = null;
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let buffer = '';
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while (true) {
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const { done, value } = await reader.read();
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if (done) break;
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buffer += decoder.decode(value, { stream: true });
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const lines = buffer.split('\n');
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buffer = lines.pop() || '';
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for (const line of lines) {
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if (!line.trim()) continue;
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try {
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const json = JSON.parse(line);
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if (json.data) {
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const binary = atob(json.data);
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const bytes = new Uint8Array(binary.length);
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for (let i = 0; i < binary.length; i++) {
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bytes[i] = binary.charCodeAt(i);
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}
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audioChunks.push(bytes);
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}
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if (json.code === 20000000 && json.usage) {
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usage = json.usage;
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}
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} catch {}
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}
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}
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if (audioChunks.length === 0) {
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throw new Error(`未收到音频数据${logid ? ` (logid: ${logid})` : ''}`);
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}
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return {
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audioBlob: new Blob(audioChunks, { type: 'audio/mpeg' }),
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usage,
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logid,
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};
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}
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/**
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* V3 单向流式合成（边生成边回调）
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*/
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export async function synthesizeV3Stream(params, authHeaders = {}, options = {}) {
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const {
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appId,
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accessKey,
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uid = 'st_user',
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text,
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speaker,
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model,
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format = 'mp3',
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sampleRate = 24000,
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speechRate = 0,
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loudnessRate = 0,
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emotion,
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emotionScale,
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contextTexts,
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explicitLanguage,
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disableMarkdownFilter = true,
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disableEmojiFilter,
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enableLanguageDetector,
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maxLengthToFilterParenthesis,
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postProcessPitch,
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cacheConfig,
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} = params;
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if (!appId || !accessKey || !text || !speaker) {
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throw new Error('缺少必要参数: appId/accessKey/text/speaker');
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}
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const additions = {};
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if (contextTexts?.length) additions.context_texts = contextTexts;
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if (explicitLanguage) additions.explicit_language = explicitLanguage;
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if (disableMarkdownFilter) additions.disable_markdown_filter = true;
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if (disableEmojiFilter) additions.disable_emoji_filter = true;
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if (enableLanguageDetector) additions.enable_language_detector = true;
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if (Number.isFinite(maxLengthToFilterParenthesis)) {
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additions.max_length_to_filter_parenthesis = maxLengthToFilterParenthesis;
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}
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if (Number.isFinite(postProcessPitch) && postProcessPitch !== 0) {
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additions.post_process = { pitch: postProcessPitch };
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}
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if (cacheConfig && typeof cacheConfig === 'object') {
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additions.cache_config = cacheConfig;
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}
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const body = {
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user: { uid },
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req_params: {
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text,
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speaker,
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audio_params: {
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format,
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sample_rate: sampleRate,
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speech_rate: speechRate,
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loudness_rate: loudnessRate,
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},
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},
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};
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if (model) body.req_params.model = model;
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if (emotion) {
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body.req_params.audio_params.emotion = emotion;
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body.req_params.audio_params.emotion_scale = emotionScale || 4;
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}
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if (Object.keys(additions).length > 0) {
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body.req_params.additions = JSON.stringify(additions);
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}
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const resp = await proxyFetch(V3_URL, {
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method: 'POST',
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headers: authHeaders,
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body: JSON.stringify(body),
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signal: options.signal,
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});
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const logid = resp.headers.get('X-Tt-Logid') || '';
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if (!resp.ok) {
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const errText = await resp.text().catch(() => '');
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throw new Error(`V3 请求失败: ${resp.status} ${errText}${logid ? ` (logid: ${logid})` : ''}`);
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}
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const reader = resp.body?.getReader();
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if (!reader) throw new Error('V3 响应流不可用');
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const decoder = new TextDecoder();
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let usage = null;
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let buffer = '';
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while (true) {
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const { done, value } = await reader.read();
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if (done) break;
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buffer += decoder.decode(value, { stream: true });
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const lines = buffer.split('\n');
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buffer = lines.pop() || '';
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for (const line of lines) {
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if (!line.trim()) continue;
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try {
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const json = JSON.parse(line);
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if (json.data) {
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const binary = atob(json.data);
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const bytes = new Uint8Array(binary.length);
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for (let i = 0; i < binary.length; i++) {
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bytes[i] = binary.charCodeAt(i);
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}
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options.onChunk?.(bytes);
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}
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if (json.code === 20000000 && json.usage) {
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usage = json.usage;
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}
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} catch {}
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}
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}
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return { usage, logid };
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}
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// ============ 试用模式 ============
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export async function synthesizeFreeV1(params, options = {}) {
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const {
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voiceKey = FREE_DEFAULT_VOICE,
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text,
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speed = 1.0,
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emotion = null,
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} = params || {};
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if (!text) {
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throw new Error('缺少必要参数: text');
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}
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const requestBody = {
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voiceKey,
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text: String(text || ''),
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speed: Number(speed) || 1.0,
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uid: 'xb_' + Date.now(),
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reqid: crypto.randomUUID?.() || `${Date.now()}_${Math.random().toString(36).slice(2)}`,
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};
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if (emotion) {
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requestBody.emotion = emotion;
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requestBody.emotionScale = 5;
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}
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const res = await fetch(FREE_V1_URL, {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify(requestBody),
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signal: options.signal,
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});
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if (!res.ok) throw new Error(`TTS HTTP ${res.status}`);
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const data = await res.json();
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if (data.code !== 3000) throw new Error(data.message || 'TTS 合成失败');
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return { audioBase64: data.data };
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}
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