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Add post-production pipeline: stem recorder, postprod script, recording UI

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New stem recording system captures 5 time-aligned WAV files (host, caller,
music, sfx, ads) during live shows. Standalone postprod.py processes stems
into broadcast-ready MP3 with gap removal, voice compression, music ducking,
and EBU R128 loudness normalization.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
tcpsyn
2026-02-08 17:53:32 -07:00
parent 356bf145b8
commit 7d88c76f90
12 changed files with 1528 additions and 363 deletions
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40
frontend/js/app.js
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@@ -85,6 +85,31 @@ function initEventListeners() {
});
}
// Stem recording toggle
const recBtn = document.getElementById('rec-btn');
if (recBtn) {
let stemRecording = false;
recBtn.addEventListener('click', async () => {
try {
if (!stemRecording) {
const res = await safeFetch('/api/recording/start', { method: 'POST' });
stemRecording = true;
recBtn.classList.add('recording');
recBtn.textContent = '⏺ REC';
log('Stem recording started: ' + res.dir);
} else {
const res = await safeFetch('/api/recording/stop', { method: 'POST' });
stemRecording = false;
recBtn.classList.remove('recording');
recBtn.textContent = 'REC';
log('Stem recording stopped');
}
} catch (err) {
log('Recording error: ' + err.message);
}
});
}
// Export session
document.getElementById('export-session-btn')?.addEventListener('click', exportSession);
@@ -400,11 +425,12 @@ async function startCall(key, name) {
if (aiInfo) aiInfo.classList.remove('hidden');
if (aiName) aiName.textContent = name;
// Show caller background
// Show caller background in disclosure triangle
const bgDetails = document.getElementById('caller-background-details');
const bgEl = document.getElementById('caller-background');
if (bgEl && data.background) {
if (bgDetails && bgEl && data.background) {
bgEl.textContent = data.background;
bgEl.classList.remove('hidden');
bgDetails.classList.remove('hidden');
}
document.querySelectorAll('.caller-btn').forEach(btn => {
@@ -428,8 +454,8 @@ async function newSession() {
conversationSince = 0;
// Hide caller background
const bgEl = document.getElementById('caller-background');
if (bgEl) bgEl.classList.add('hidden');
const bgDetails = document.getElementById('caller-background-details');
if (bgDetails) bgDetails.classList.add('hidden');
// Reload callers to get new session ID
await loadCallers();
@@ -455,8 +481,8 @@ async function hangup() {
document.querySelectorAll('.caller-btn').forEach(btn => btn.classList.remove('active'));
// Hide caller background
const bgEl = document.getElementById('caller-background');
if (bgEl) bgEl.classList.add('hidden');
const bgDetails2 = document.getElementById('caller-background-details');
if (bgDetails2) bgDetails2.classList.add('hidden');
// Hide AI caller indicator
document.getElementById('ai-caller-info')?.classList.add('hidden');