Shifter - Html5 — Tai Phan Mem Pitch

// update pause logic using new tracking function patchedPauseAudio() { if (!isPlaying || !sourceNode || !audioContext) return; if (sourceNode && audioContext && window._sourceStartTime !== null) const now = audioContext.currentTime; const elapsedRaw = now - window._sourceStartTime; const effectiveElapsed = elapsedRaw * sourceNode.playbackRate.value; let newOffset = (pauseOffset if (sourceNode) { try sourceNode.stop(); catch(e) {} sourceNode.disconnect(); sourceNode = null; } isPlaying = false; window._sourceStartTime = null; updatePlayButtonsState(); statusTextSpan.innerText = "Paused"; }

.btn background: #1e2a3e; border: none; padding: 10px 20px; border-radius: 60px; font-weight: 600; color: white; display: inline-flex; align-items: center; gap: 8px; cursor: pointer; transition: 0.1s; flex: 1; justify-content: center; font-size: 0.9rem; box-shadow: 0 3px 6px rgba(0,0,0,0.3); border-bottom: 1px solid #3b82f640; tai phan mem pitch shifter - html5

<script> (function(){ // --- DOM elements --- const pitchSlider = document.getElementById('pitchSlider'); const pitchDisplay = document.getElementById('pitchDisplay'); const pitchFactorSpan = document.getElementById('pitchFactorSpan'); const playBtn = document.getElementById('playBtn'); const pauseStopBtn = document.getElementById('pauseStopBtn'); const audioUpload = document.getElementById('audioUpload'); const statusTextSpan = document.getElementById('statusText'); const fileInfoSpan = document.getElementById('fileInfo'); // update pause logic using new tracking function

<div class="pitch-area"> <div class="knob-label"> <span>🔽 PITCH SHIFT</span> <span class="pitch-value" id="pitchDisplay">0.00 semitones</span> </div> <input type="range" id="pitchSlider" min="-12" max="12" step="0.1" value="0"> <div class="semitone-buttons"> <button class="st-btn" data-shift="-2">-2 sem</button> <button class="st-btn" data-shift="-1">-1 sem</button> <button class="st-btn reset" data-shift="0">⟳ Reset</button> <button class="st-btn" data-shift="1">+1 sem</button> <button class="st-btn" data-shift="2">+2 sem</button> <button class="st-btn" data-shift="5">+5 sem</button> <button class="st-btn" data-shift="-5">-5 sem</button> </div> <div style="font-size: 0.7rem; text-align: center; margin-top: 12px; color:#6b7280"> ⚡ Pitch factor: <span id="pitchFactorSpan">1.000</span> </div> </div> const elapsedRaw = now - window._sourceStartTime

.semitone-buttons display: flex; gap: 12px; justify-content: center; margin-top: 16px; flex-wrap: wrap;

h1 font-size: 1.9rem; font-weight: 700; margin: 0 0 0.2rem 0; background: linear-gradient(135deg, #E0F2FE, #7AA9FF); -webkit-background-clip: text; background-clip: text; color: transparent; letter-spacing: -0.3px; display: flex; align-items: center; gap: 10px;