Tai Phan Mem Pitch Shifter - Html5 -

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;

function stopAudio(resetOffset = true) { if (sourceNode) { try sourceNode.stop(); catch(e) {} sourceNode.disconnect(); sourceNode = null; } isPlaying = false; if (resetOffset) pauseOffset = 0; window._sourceStartTime = null; updatePlayButtonsState(); statusTextSpan.innerText = audioBuffer ? "Stopped" : "No track"; } tai phan mem pitch shifter - html5

// drag and drop support const dropZone = document.body; document.addEventListener('dragover', (e) => e.preventDefault(); ); document.addEventListener('drop', (e) => e.preventDefault(); const files = e.dataTransfer.files; if (files.length > 0 && files[0].type.includes('audio')) loadAudioFile(files[0]); audioUpload.files = files; // sync else statusTextSpan.innerText = "Drop an audio file (MP3, WAV, OGG)"; setTimeout(() => if(!audioBuffer) statusTextSpan.innerText = "No track loaded"; , 1500); ); h1 font-size: 1

// load and decode audio file async function loadAudioFile(file) if (!file) return; statusTextSpan.innerText = "Loading..."; fileInfoSpan.innerText = file.name; const arrayBuffer = await file.arrayBuffer(); if (!audioContext) initAudioContext(); // ensure context not closed if (audioContext.state === 'closed') initAudioContext(); try const decoded = await audioContext.decodeAudioData(arrayBuffer); audioBuffer = decoded; // Reset state stopAudio(true); pauseOffset = 0; isPlaying = false; updatePlayButtonsState(); statusTextSpan.innerText = "Loaded"; fileInfoSpan.innerText = `$file.name ($decoded.duration.toFixed(1)s)`; // reset pitch display to 0 semitone for new track if (currentPitchSemitones !== 0) currentPitchSemitones = 0; updatePitchUI(0); else updatePitchUI(0); catch (err) console.error(err); statusTextSpan.innerText = "Decode error"; fileInfoSpan.innerText = "Invalid audio"; audioBuffer = null; updatePlayButtonsState(); h1 font-size: 1.9rem