726 lines
26 KiB
JavaScript
726 lines
26 KiB
JavaScript
// ===== 页面元素 =====
|
||
const elEngineModel = document.getElementById('engineModel');
|
||
const elSpeakerDiarization = document.getElementById('speakerDiarization');
|
||
const elHotwords = document.getElementById('hotwords');
|
||
const elDiarizationLabel = document.getElementById('diarizationLabel');
|
||
const elSentenceStrategy = document.getElementById('sentenceStrategy');
|
||
const elBtnStart = document.getElementById('btnStart');
|
||
const elBtnStop = document.getElementById('btnStop');
|
||
const elResultMeta = document.getElementById('resultMeta');
|
||
const elVoiceIdDisplay = document.getElementById('voiceIdDisplay');
|
||
const elBtnCopyVoiceId = document.getElementById('btnCopyVoiceId');
|
||
const elBtnExportWav = document.getElementById('btnExportWav');
|
||
const elStatusDot = document.getElementById('statusDot');
|
||
const elStatusText = document.getElementById('statusText');
|
||
const elResultArea = document.getElementById('resultArea');
|
||
const elResultPlaceholder = document.getElementById('resultPlaceholder');
|
||
const elLogArea = document.getElementById('logArea');
|
||
const elBtnClearLog = document.getElementById('btnClearLog');
|
||
const elMicStatus = document.getElementById('micStatus');
|
||
const elMicTimer = document.getElementById('micTimer');
|
||
const elMicElapsed = document.getElementById('micElapsed');
|
||
|
||
// 输入模式选项卡
|
||
const elTabMic = document.getElementById('tabMic');
|
||
const elTabFile = document.getElementById('tabFile');
|
||
const elPanelMic = document.getElementById('panelMic');
|
||
const elPanelFile = document.getElementById('panelFile');
|
||
|
||
// 文件上传
|
||
const elAudioFile = document.getElementById('audioFile');
|
||
const elFileInfo = document.getElementById('fileInfo');
|
||
const elAudioMeta = document.getElementById('audioMeta');
|
||
const elMetaFormat = document.getElementById('metaFormat');
|
||
const elMetaSampleRate = document.getElementById('metaSampleRate');
|
||
const elMetaDuration = document.getElementById('metaDuration');
|
||
const elSpeedControl = document.getElementById('speedControl');
|
||
const elSpeedSlider = document.getElementById('speedSlider');
|
||
const elSpeedValue = document.getElementById('speedValue');
|
||
|
||
// ===== 说话人分离开关 =====
|
||
elSpeakerDiarization.addEventListener('change', () => {
|
||
elDiarizationLabel.textContent = elSpeakerDiarization.checked ? '开启' : '关闭';
|
||
});
|
||
|
||
// ===== 日志区域 =====
|
||
elBtnClearLog.addEventListener('click', () => { elLogArea.innerHTML = ''; });
|
||
|
||
function appendLog(msg) {
|
||
const now = new Date();
|
||
const ts = [now.getHours(), now.getMinutes(), now.getSeconds()]
|
||
.map(n => String(n).padStart(2, '0')).join(':')
|
||
+ '.' + String(now.getMilliseconds()).padStart(3, '0');
|
||
const typeClass = 'log-type-' + (msg.type || 'unknown');
|
||
const entry = document.createElement('div');
|
||
entry.className = 'log-entry';
|
||
entry.innerHTML = `<span class="log-time">${ts}</span><span class="${typeClass}">${JSON.stringify(msg)}</span>`;
|
||
elLogArea.appendChild(entry);
|
||
elLogArea.scrollTop = elLogArea.scrollHeight;
|
||
}
|
||
|
||
// ===== 状态 =====
|
||
let ws = null;
|
||
let sending = false;
|
||
let stoppingByUser = false;
|
||
let currentVoiceId = null;
|
||
let audioChunks = [];
|
||
let sessionId = 0;
|
||
|
||
let micStream = null;
|
||
let micAudioContext = null;
|
||
let micWorklet = null;
|
||
let micTimerInterval = null;
|
||
let micStartTime = 0;
|
||
|
||
// 输入模式（麦克风 / 文件）
|
||
let inputMode = 'mic';
|
||
let selectedFile = null;
|
||
|
||
// 文件扩展名 → SDK VoiceFormat 常量
|
||
const EXT_FORMAT_MAP = {
|
||
'pcm': 1, 'wav': 12, 'mp3': 8, 'm4a': 14,
|
||
'aac': 16, 'opus': 10, 'ogg': 10, 'silk': 6, 'speex': 4
|
||
};
|
||
// 不同格式的默认发送倍速：PCM/WAV 实时速度 1x，压缩格式解压快可提速
|
||
const DEFAULT_SPEED = {
|
||
'pcm': 1.0, 'wav': 1.0,
|
||
'mp3': 2.0, 'm4a': 2.0, 'aac': 2.0,
|
||
'opus': 3.0, 'ogg': 3.0, 'silk': 3.0, 'speex': 3.0
|
||
};
|
||
const MAX_SPEED = 3.0;
|
||
const UNSUPPORTED_STREAMING_EXTENSIONS = new Set(['m4a']);
|
||
|
||
// 统一前端热词分隔符并去重，后端再转换为 Contextual Paraformer 的输入格式。
|
||
function normalizeHotwords(value) {
|
||
const terms = value.split(/[,，、;；\r\n]+/).map(term => term.trim()).filter(Boolean);
|
||
return [...new Set(terms)].join(',');
|
||
}
|
||
|
||
const SPEAKER_COLORS = ['#4a7dff', '#52c41a', '#faad14', '#ff4d4f', '#9254de', '#13c2c2'];
|
||
|
||
let sentenceMap = {};
|
||
let speakerOrderMap = {};
|
||
let speakerOrderCounter = 0;
|
||
|
||
// ===== 输入模式选项卡 =====
|
||
function switchMode(mode) {
|
||
inputMode = mode;
|
||
elTabMic.classList.toggle('active', mode === 'mic');
|
||
elTabFile.classList.toggle('active', mode === 'file');
|
||
elPanelMic.style.display = mode === 'mic' ? '' : 'none';
|
||
elPanelFile.style.display = mode === 'file' ? '' : 'none';
|
||
if (mode === 'file') {
|
||
elBtnStart.disabled = !selectedFile;
|
||
} else {
|
||
elBtnStart.disabled = false;
|
||
}
|
||
}
|
||
elTabMic.addEventListener('click', () => switchMode('mic'));
|
||
elTabFile.addEventListener('click', () => switchMode('file'));
|
||
|
||
// ===== 文件选择 =====
|
||
elAudioFile.addEventListener('change', (e) => {
|
||
const file = e.target.files[0];
|
||
if (!file) return;
|
||
const ext = getFileExt(file.name);
|
||
if (UNSUPPORTED_STREAMING_EXTENSIONS.has(ext)) {
|
||
selectedFile = null;
|
||
e.target.value = '';
|
||
elFileInfo.textContent = 'M4A 暂不支持直接上传，请先转成 WAV 或 MP3';
|
||
elFileInfo.classList.remove('has-file');
|
||
elAudioMeta.style.display = 'none';
|
||
elSpeedControl.style.display = 'none';
|
||
elBtnStart.disabled = true;
|
||
showToast('M4A 容器格式无法按当前实时切片方式直接识别，请转成 WAV 或 MP3', true);
|
||
return;
|
||
}
|
||
selectedFile = file;
|
||
const sizeMB = (file.size / 1024 / 1024).toFixed(1);
|
||
elFileInfo.textContent = `${file.name} (${sizeMB}MB)`;
|
||
elFileInfo.classList.add('has-file');
|
||
elBtnStart.disabled = false;
|
||
parseAudioMeta(file);
|
||
});
|
||
|
||
// 语速滑块
|
||
elSpeedSlider.addEventListener('input', () => {
|
||
elSpeedValue.textContent = parseFloat(elSpeedSlider.value).toFixed(1) + 'x';
|
||
});
|
||
|
||
// ===== 音频元信息解析 =====
|
||
function getFileExt(filename) {
|
||
const parts = filename.split('.');
|
||
return parts.length > 1 ? parts[parts.length - 1].toLowerCase() : '';
|
||
}
|
||
|
||
function formatDuration(seconds) {
|
||
if (!seconds || !isFinite(seconds)) return '—';
|
||
const min = Math.floor(seconds / 60);
|
||
const sec = Math.floor(seconds % 60);
|
||
const ms = Math.round((seconds % 1) * 10);
|
||
return `${String(min).padStart(2, '0')}:${String(sec).padStart(2, '0')}.${ms}`;
|
||
}
|
||
|
||
async function parseAudioMeta(file) {
|
||
const ext = getFileExt(file.name);
|
||
elMetaFormat.textContent = ext.toUpperCase();
|
||
// 根据格式设默认倍速
|
||
const defaultSpeed = Math.min(DEFAULT_SPEED[ext] || 1.0, MAX_SPEED);
|
||
elSpeedSlider.value = defaultSpeed;
|
||
elSpeedValue.textContent = defaultSpeed.toFixed(1) + 'x';
|
||
elAudioMeta.style.display = '';
|
||
elSpeedControl.style.display = '';
|
||
|
||
if (ext === 'pcm') {
|
||
elMetaSampleRate.textContent = '16000 Hz (假设)';
|
||
const durationSec = file.size / (16000 * 2 * 1);
|
||
elMetaDuration.textContent = formatDuration(durationSec) + ' (估算)';
|
||
} else if (ext === 'wav') {
|
||
try {
|
||
const headerBuf = await file.slice(0, 44).arrayBuffer();
|
||
const view = new DataView(headerBuf);
|
||
const sampleRate = view.getUint32(24, true);
|
||
const bitsPerSample = view.getUint16(34, true);
|
||
const numChannels = view.getUint16(22, true);
|
||
const byteRate = sampleRate * numChannels * (bitsPerSample / 8);
|
||
const dataSize = file.size - 44;
|
||
const durationSec = dataSize / byteRate;
|
||
elMetaSampleRate.textContent = sampleRate + ' Hz, ' + bitsPerSample + 'bit, ' + numChannels + 'ch';
|
||
elMetaDuration.textContent = formatDuration(durationSec);
|
||
} catch {
|
||
elMetaSampleRate.textContent = '解析失败';
|
||
elMetaDuration.textContent = '—';
|
||
}
|
||
} else {
|
||
elMetaSampleRate.textContent = '—';
|
||
elMetaDuration.textContent = '解析中...';
|
||
try {
|
||
const url = URL.createObjectURL(file);
|
||
const audio = new Audio();
|
||
audio.preload = 'metadata';
|
||
audio.src = url;
|
||
await new Promise((resolve, reject) => {
|
||
audio.onloadedmetadata = resolve;
|
||
audio.onerror = reject;
|
||
setTimeout(reject, 5000);
|
||
});
|
||
elMetaDuration.textContent = formatDuration(audio.duration);
|
||
URL.revokeObjectURL(url);
|
||
} catch {
|
||
elMetaDuration.textContent = '无法解析';
|
||
}
|
||
}
|
||
}
|
||
|
||
// ===== 复制与提示 =====
|
||
function showToast(message, isError) {
|
||
const toast = document.createElement('div');
|
||
toast.className = 'copy-toast' + (isError ? ' copy-toast-error' : '');
|
||
toast.textContent = message;
|
||
document.body.appendChild(toast);
|
||
requestAnimationFrame(() => { toast.classList.add('visible'); });
|
||
setTimeout(() => {
|
||
toast.classList.remove('visible');
|
||
setTimeout(() => toast.remove(), 300);
|
||
}, 1500);
|
||
}
|
||
|
||
function handleCopyClick(btn, textEl) {
|
||
const text = textEl.textContent.trim();
|
||
if (!text || text === '—') { showToast('暂无内容可复制', true); return; }
|
||
navigator.clipboard.writeText(text).then(() => {
|
||
btn.textContent = '✅';
|
||
showToast('已复制到剪贴板');
|
||
setTimeout(() => { btn.textContent = '📋'; }, 1500);
|
||
}).catch(() => showToast('复制失败', true));
|
||
}
|
||
|
||
elBtnCopyVoiceId.addEventListener('click', () => handleCopyClick(elBtnCopyVoiceId, elVoiceIdDisplay));
|
||
|
||
// ===== WAV 导出 =====
|
||
function buildWavBlob(pcmChunks) {
|
||
let totalLen = 0;
|
||
for (const c of pcmChunks) totalLen += c.byteLength;
|
||
const buf = new ArrayBuffer(44 + totalLen);
|
||
const view = new DataView(buf);
|
||
const writeStr = (off, str) => { for (let i = 0; i < str.length; i++) view.setUint8(off + i, str.charCodeAt(i)); };
|
||
const sampleRate = 16000, bitsPerSample = 16, numChannels = 1;
|
||
const byteRate = sampleRate * numChannels * bitsPerSample / 8;
|
||
const blockAlign = numChannels * bitsPerSample / 8;
|
||
writeStr(0, 'RIFF');
|
||
view.setUint32(4, 36 + totalLen, true);
|
||
writeStr(8, 'WAVE');
|
||
writeStr(12, 'fmt ');
|
||
view.setUint32(16, 16, true);
|
||
view.setUint16(20, 1, true);
|
||
view.setUint16(22, numChannels, true);
|
||
view.setUint32(24, sampleRate, true);
|
||
view.setUint32(28, byteRate, true);
|
||
view.setUint16(32, blockAlign, true);
|
||
view.setUint16(34, bitsPerSample, true);
|
||
writeStr(36, 'data');
|
||
view.setUint32(40, totalLen, true);
|
||
let offset = 44;
|
||
for (const chunk of pcmChunks) {
|
||
const src = new Uint8Array(chunk instanceof ArrayBuffer ? chunk : chunk.buffer || chunk);
|
||
new Uint8Array(buf, offset).set(src);
|
||
offset += src.byteLength;
|
||
}
|
||
return new Blob([buf], { type: 'audio/wav' });
|
||
}
|
||
|
||
elBtnExportWav.addEventListener('click', () => {
|
||
if (audioChunks.length === 0) { showToast('暂无音频数据', true); return; }
|
||
const blob = buildWavBlob(audioChunks);
|
||
const url = URL.createObjectURL(blob);
|
||
const a = document.createElement('a');
|
||
a.href = url;
|
||
a.download = (currentVoiceId || 'audio') + '.wav';
|
||
document.body.appendChild(a);
|
||
a.click();
|
||
a.remove();
|
||
URL.revokeObjectURL(url);
|
||
showToast('WAV 已导出');
|
||
});
|
||
|
||
// ===== 辅助函数 =====
|
||
function formatTime(ms) {
|
||
const totalSec = Math.floor(ms / 1000);
|
||
const min = String(Math.floor(totalSec / 60)).padStart(2, '0');
|
||
const sec = String(totalSec % 60).padStart(2, '0');
|
||
return `${min}:${sec}`;
|
||
}
|
||
|
||
function formatTimeRange(startMs, endMs) {
|
||
return `${formatTime(startMs)} - ${formatTime(endMs)}`;
|
||
}
|
||
|
||
function setStatus(state, text) {
|
||
elStatusDot.className = 'status-dot ' + state;
|
||
elStatusText.textContent = text;
|
||
}
|
||
|
||
// ===== 渲染：字幕模式（不启用说话人分离） =====
|
||
// 每个 sentence_id 对应一个独立气泡：
|
||
// - 中间态（sentence_type===0）：实时更新该气泡文本，末尾加 "..." 表示未定
|
||
// - 稳态（sentence_type===1）：去掉 "..." 并定格，下一个 sentence_id 自动创建新气泡
|
||
function renderSubtitle(sentence) {
|
||
const id = 'subtitle-' + sentence.sentence_id;
|
||
const isInterim = sentence.sentence_type === 0;
|
||
let entry = sentenceMap[id];
|
||
|
||
if (!entry) {
|
||
const el = document.createElement('div');
|
||
el.className = 'subtitle-item subtitle-interim';
|
||
el.id = id;
|
||
const timeSpan = document.createElement('span');
|
||
timeSpan.className = 'subtitle-time';
|
||
el.appendChild(timeSpan);
|
||
const textSpan = document.createElement('span');
|
||
textSpan.className = 'subtitle-text';
|
||
el.appendChild(textSpan);
|
||
elResultArea.appendChild(el);
|
||
entry = { el: el };
|
||
sentenceMap[id] = entry;
|
||
}
|
||
|
||
const el = entry.el;
|
||
el.querySelector('.subtitle-time').textContent = formatTimeRange(sentence.start_time, sentence.end_time);
|
||
const textSpan = el.querySelector('.subtitle-text');
|
||
if (isInterim) {
|
||
textSpan.textContent = sentence.sentence + ' ...';
|
||
textSpan.className = 'subtitle-text interim';
|
||
} else {
|
||
textSpan.textContent = sentence.sentence;
|
||
textSpan.className = 'subtitle-text';
|
||
el.className = 'subtitle-item'; // 去掉 interim 类名，定格
|
||
}
|
||
elResultArea.scrollTop = elResultArea.scrollHeight;
|
||
}
|
||
|
||
// ===== 渲染：说话人气泡 =====
|
||
function renderBubble(sentence) {
|
||
const id = 'sent-' + sentence.sentence_id;
|
||
const speakerId = sentence.speaker_id;
|
||
const isUnknown = speakerId < 0;
|
||
const isInterim = sentence.sentence_type === 0;
|
||
|
||
if (isUnknown) {
|
||
const pendingText = sentence.sentence + (isInterim ? ' ...' : '');
|
||
// 将未分类文本单独显示，避免错误归到上一位说话人名下。
|
||
renderFallbackPendingBubble(id, pendingText, isInterim, sentence);
|
||
elResultArea.scrollTop = elResultArea.scrollHeight;
|
||
return;
|
||
}
|
||
|
||
let entry = sentenceMap[id];
|
||
let insertBefore = null;
|
||
if (entry && entry.speakerId !== speakerId) {
|
||
insertBefore = entry.el.nextSibling;
|
||
entry.el.remove();
|
||
entry = null;
|
||
delete sentenceMap[id];
|
||
}
|
||
|
||
if (!entry) {
|
||
if (!(speakerId in speakerOrderMap)) {
|
||
speakerOrderMap[speakerId] = speakerOrderCounter++;
|
||
}
|
||
const orderIdx = speakerOrderMap[speakerId];
|
||
const side = orderIdx % 2 === 0 ? 'left' : 'right';
|
||
const colorIdx = orderIdx % SPEAKER_COLORS.length;
|
||
|
||
const el = document.createElement('div');
|
||
el.id = id;
|
||
el.className = `bubble-row speaker-${side} speaker-${colorIdx}`;
|
||
const wrapper = document.createElement('div');
|
||
wrapper.className = 'bubble-wrapper';
|
||
const header = document.createElement('div');
|
||
header.className = 'bubble-header';
|
||
const badge = document.createElement('span');
|
||
badge.className = `speaker-badge speaker-color-${colorIdx}`;
|
||
const nameSpan = document.createElement('span');
|
||
nameSpan.className = 'speaker-name';
|
||
nameSpan.textContent = `说话人 ${speakerId}`;
|
||
const timeSpan = document.createElement('span');
|
||
timeSpan.className = 'bubble-time';
|
||
header.appendChild(badge);
|
||
header.appendChild(nameSpan);
|
||
header.appendChild(timeSpan);
|
||
const body = document.createElement('div');
|
||
body.className = 'bubble-body';
|
||
wrapper.appendChild(header);
|
||
wrapper.appendChild(body);
|
||
el.appendChild(wrapper);
|
||
|
||
if (insertBefore) elResultArea.insertBefore(el, insertBefore);
|
||
else elResultArea.appendChild(el);
|
||
entry = { el: el, speakerId: speakerId };
|
||
sentenceMap[id] = entry;
|
||
}
|
||
|
||
const el = entry.el;
|
||
const timeSpan = el.querySelector('.bubble-time');
|
||
const body = el.querySelector('.bubble-body');
|
||
timeSpan.textContent = formatTimeRange(sentence.start_time, sentence.end_time);
|
||
Array.from(body.childNodes).filter(n => n.nodeType === Node.TEXT_NODE).forEach(n => n.remove());
|
||
const textNode = document.createTextNode(sentence.sentence + (isInterim ? ' ...' : ''));
|
||
body.insertBefore(textNode, body.firstChild);
|
||
body.className = 'bubble-body' + (isInterim ? ' interim' : '');
|
||
entry.speakerId = speakerId;
|
||
elResultArea.scrollTop = elResultArea.scrollHeight;
|
||
}
|
||
|
||
function renderFallbackPendingBubble(id, text, isInterim, sentence) {
|
||
let entry = sentenceMap[id];
|
||
if (!entry) {
|
||
const el = document.createElement('div');
|
||
el.id = id;
|
||
el.className = 'bubble-row speaker-left speaker-unknown';
|
||
const wrapper = document.createElement('div');
|
||
wrapper.className = 'bubble-wrapper';
|
||
const header = document.createElement('div');
|
||
header.className = 'bubble-header';
|
||
const badge = document.createElement('span');
|
||
badge.className = 'speaker-badge speaker-color-unknown';
|
||
const nameSpan = document.createElement('span');
|
||
nameSpan.className = 'speaker-name';
|
||
nameSpan.textContent = '说话人不确定';
|
||
const timeSpan = document.createElement('span');
|
||
timeSpan.className = 'bubble-time';
|
||
header.appendChild(badge);
|
||
header.appendChild(nameSpan);
|
||
header.appendChild(timeSpan);
|
||
const body = document.createElement('div');
|
||
body.className = 'bubble-body';
|
||
wrapper.appendChild(header);
|
||
wrapper.appendChild(body);
|
||
el.appendChild(wrapper);
|
||
elResultArea.appendChild(el);
|
||
entry = { el: el, speakerId: -1 };
|
||
sentenceMap[id] = entry;
|
||
}
|
||
entry.el.querySelector('.bubble-time').textContent = formatTimeRange(
|
||
sentence.start_time, sentence.end_time
|
||
);
|
||
const body = entry.el.querySelector('.bubble-body');
|
||
body.textContent = text;
|
||
body.className = 'bubble-body' + (isInterim ? ' interim' : '');
|
||
}
|
||
|
||
// ===== 开始识别 =====
|
||
elBtnStart.addEventListener('click', () => {
|
||
if (inputMode === 'file' && !selectedFile) return;
|
||
startRecognition();
|
||
});
|
||
|
||
async function startRecognition() {
|
||
if (inputMode === 'file' && selectedFile) {
|
||
const ext = getFileExt(selectedFile.name);
|
||
if (UNSUPPORTED_STREAMING_EXTENSIONS.has(ext)) {
|
||
showToast('当前 demo 不支持直接流式上传 M4A，请转成 WAV 或 MP3', true);
|
||
return;
|
||
}
|
||
}
|
||
|
||
elResultArea.innerHTML = '';
|
||
elLogArea.innerHTML = '';
|
||
sentenceMap = {};
|
||
speakerOrderMap = {};
|
||
speakerOrderCounter = 0;
|
||
audioChunks = [];
|
||
elBtnExportWav.disabled = true;
|
||
elResultPlaceholder?.remove();
|
||
elResultMeta.style.display = 'flex';
|
||
elVoiceIdDisplay.textContent = '—';
|
||
setStatus('connecting', '连接中...');
|
||
|
||
elBtnStart.disabled = true;
|
||
elBtnStop.disabled = false;
|
||
elHotwords.disabled = true;
|
||
sending = true;
|
||
|
||
const currentSession = ++sessionId;
|
||
const useSpeaker = elSpeakerDiarization.checked;
|
||
|
||
// 构造 start 消息
|
||
let voiceFormat = 0, fileName = '', speedFactor = 0;
|
||
if (inputMode === 'file') {
|
||
const ext = getFileExt(selectedFile.name);
|
||
voiceFormat = EXT_FORMAT_MAP[ext] || 0;
|
||
fileName = selectedFile.name;
|
||
speedFactor = Math.min(parseFloat(elSpeedSlider.value) || 1.0, MAX_SPEED);
|
||
}
|
||
|
||
const startPayload = {
|
||
type: 'start',
|
||
engine_model_type: elEngineModel.value,
|
||
speaker_diarization: useSpeaker ? 1 : 0,
|
||
sentence_strategy: parseInt(elSentenceStrategy.value),
|
||
hotwords: normalizeHotwords(elHotwords.value),
|
||
source: inputMode,
|
||
voice_format: voiceFormat,
|
||
file_name: fileName,
|
||
speed_factor: speedFactor
|
||
};
|
||
|
||
const protocol = location.protocol === 'https:' ? 'wss:' : 'ws:';
|
||
ws = new WebSocket(`${protocol}//${location.host}/ws`);
|
||
ws.binaryType = 'arraybuffer';
|
||
|
||
ws.onopen = () => {
|
||
if (currentSession !== sessionId) return;
|
||
ws.send(JSON.stringify(startPayload));
|
||
if (inputMode === 'file') {
|
||
sendAudioFile(selectedFile);
|
||
} else {
|
||
startMicCapture();
|
||
}
|
||
};
|
||
|
||
ws.onmessage = (event) => {
|
||
if (currentSession !== sessionId) return;
|
||
const msg = JSON.parse(event.data);
|
||
if (msg.type !== 'sentences') {
|
||
console.log('[ws] type=' + msg.type, msg);
|
||
}
|
||
appendLog(msg);
|
||
handleServerMessage(msg, useSpeaker);
|
||
};
|
||
|
||
ws.onerror = (err) => {
|
||
if (currentSession !== sessionId) return;
|
||
console.error('WebSocket error:', err);
|
||
setStatus('error', '连接错误');
|
||
stopMicCapture();
|
||
resetControls();
|
||
};
|
||
|
||
ws.onclose = () => {
|
||
if (currentSession !== sessionId) return;
|
||
stopMicCapture();
|
||
if (sending) setStatus('error', '连接意外断开');
|
||
else if (stoppingByUser) setStatus('done', '已停止');
|
||
if (audioChunks.length > 0) elBtnExportWav.disabled = false;
|
||
ws = null;
|
||
resetControls();
|
||
};
|
||
}
|
||
|
||
function handleServerMessage(msg, useSpeaker) {
|
||
switch (msg.type) {
|
||
case 'voice_id':
|
||
if (msg.voice_id) {
|
||
currentVoiceId = msg.voice_id;
|
||
elVoiceIdDisplay.textContent = msg.voice_id;
|
||
}
|
||
break;
|
||
|
||
case 'start':
|
||
setStatus('running', '识别中...');
|
||
break;
|
||
|
||
case 'sentences':
|
||
if (msg.sentences) {
|
||
msg.sentences.forEach(s => {
|
||
if (useSpeaker) renderBubble(s);
|
||
else renderSubtitle(s);
|
||
});
|
||
}
|
||
break;
|
||
|
||
case 'end':
|
||
setStatus('done', '识别完成');
|
||
sending = false;
|
||
if (audioChunks.length > 0) elBtnExportWav.disabled = false;
|
||
resetControls();
|
||
if (ws) { ws.close(); ws = null; }
|
||
break;
|
||
|
||
case 'error':
|
||
setStatus('error', `错误: ${msg.message}`);
|
||
sending = false;
|
||
stopMicCapture();
|
||
if (ws) { ws.close(); ws = null; }
|
||
resetControls();
|
||
break;
|
||
}
|
||
}
|
||
|
||
// ===== 停止 =====
|
||
elBtnStop.addEventListener('click', () => stopRecognition());
|
||
|
||
function stopRecognition() {
|
||
sending = false;
|
||
stoppingByUser = true;
|
||
stopMicCapture();
|
||
setStatus('running', '停止中...');
|
||
elBtnStop.disabled = true;
|
||
|
||
if (currentVoiceId) {
|
||
fetch(`/api/stop?voice_id=${encodeURIComponent(currentVoiceId)}`)
|
||
.then(r => r.json())
|
||
.catch(err => console.error('[stop] error:', err));
|
||
}
|
||
|
||
if (ws && ws.readyState === WebSocket.OPEN) {
|
||
try { ws.send(JSON.stringify({ type: 'stop' })); } catch (e) {}
|
||
}
|
||
|
||
const stopSession = sessionId;
|
||
setTimeout(() => {
|
||
if (sessionId !== stopSession) return;
|
||
if (ws) {
|
||
try { ws.close(); } catch (e) {}
|
||
ws = null;
|
||
setStatus('done', '已停止（超时）');
|
||
resetControls();
|
||
}
|
||
}, 5000);
|
||
}
|
||
|
||
function resetControls() {
|
||
sending = false;
|
||
stoppingByUser = false;
|
||
currentVoiceId = null;
|
||
if (inputMode === 'file') {
|
||
elBtnStart.disabled = !selectedFile;
|
||
} else {
|
||
elBtnStart.disabled = false;
|
||
}
|
||
elBtnStop.disabled = true;
|
||
elHotwords.disabled = false;
|
||
}
|
||
|
||
// ===== 发送音频文件 =====
|
||
// 按 16KB 切片发送，后端会缓冲成 6400 字节块并按 speed_factor 限流
|
||
const UPLOAD_CHUNK_SIZE = 16000;
|
||
async function sendAudioFile(file) {
|
||
const buffer = await file.arrayBuffer();
|
||
const totalBytes = buffer.byteLength;
|
||
let offset = 0;
|
||
const ext = getFileExt(file.name);
|
||
const isPcm = (ext === 'pcm');
|
||
while (offset < totalBytes && sending && ws && ws.readyState === WebSocket.OPEN) {
|
||
const end = Math.min(offset + UPLOAD_CHUNK_SIZE, totalBytes);
|
||
const chunk = buffer.slice(offset, end);
|
||
// 仅 PCM 数据可直接拼成 WAV 导出；压缩格式跳过
|
||
if (isPcm) audioChunks.push(chunk.slice(0));
|
||
ws.send(chunk);
|
||
offset = end;
|
||
await new Promise(r => setTimeout(r, 0));
|
||
}
|
||
if (ws && ws.readyState === WebSocket.OPEN && sending) {
|
||
ws.send(JSON.stringify({ type: 'eof' }));
|
||
}
|
||
}
|
||
|
||
// ===== 麦克风采集 =====
|
||
async function startMicCapture() {
|
||
try {
|
||
micStream = await navigator.mediaDevices.getUserMedia({
|
||
audio: { sampleRate: 16000, channelCount: 1, echoCancellation: true, noiseSuppression: true }
|
||
});
|
||
} catch (err) {
|
||
console.error('getUserMedia error:', err);
|
||
setStatus('error', '无法获取麦克风权限');
|
||
elMicStatus.textContent = '无法获取麦克风: ' + err.message;
|
||
resetControls();
|
||
return;
|
||
}
|
||
|
||
micAudioContext = new (window.AudioContext || window.webkitAudioContext)({ sampleRate: 16000 });
|
||
const source = micAudioContext.createMediaStreamSource(micStream);
|
||
const processor = micAudioContext.createScriptProcessor(4096, 1, 1);
|
||
|
||
processor.onaudioprocess = (e) => {
|
||
if (!sending || !ws || ws.readyState !== WebSocket.OPEN) return;
|
||
const float32 = e.inputBuffer.getChannelData(0);
|
||
const int16 = new Int16Array(float32.length);
|
||
for (let i = 0; i < float32.length; i++) {
|
||
let s = Math.max(-1, Math.min(1, float32[i]));
|
||
int16[i] = s < 0 ? s * 0x8000 : s * 0x7FFF;
|
||
}
|
||
ws.send(int16.buffer);
|
||
audioChunks.push(int16.buffer.slice(0));
|
||
};
|
||
|
||
source.connect(processor);
|
||
processor.connect(micAudioContext.destination);
|
||
micWorklet = { source, processor };
|
||
|
||
micStartTime = Date.now();
|
||
elMicStatus.style.display = 'none';
|
||
elMicTimer.style.display = '';
|
||
micTimerInterval = setInterval(() => {
|
||
const elapsed = Math.floor((Date.now() - micStartTime) / 1000);
|
||
const mm = String(Math.floor(elapsed / 60)).padStart(2, '0');
|
||
const ss = String(elapsed % 60).padStart(2, '0');
|
||
elMicElapsed.textContent = `${mm}:${ss}`;
|
||
}, 200);
|
||
}
|
||
|
||
function stopMicCapture() {
|
||
if (micWorklet) {
|
||
micWorklet.processor.disconnect();
|
||
micWorklet.source.disconnect();
|
||
micWorklet = null;
|
||
}
|
||
if (micAudioContext) {
|
||
micAudioContext.close().catch(() => {});
|
||
micAudioContext = null;
|
||
}
|
||
if (micStream) {
|
||
micStream.getTracks().forEach(t => t.stop());
|
||
micStream = null;
|
||
}
|
||
if (micTimerInterval) {
|
||
clearInterval(micTimerInterval);
|
||
micTimerInterval = null;
|
||
}
|
||
elMicTimer.style.display = 'none';
|
||
elMicStatus.style.display = '';
|
||
elMicStatus.textContent = '点击下方按钮开始录音';
|
||
elMicElapsed.textContent = '00:00';
|
||
}
|