Tai Phan Mem Pitch Shifter - Html5 -

.file-label background: #2d3a4b; cursor: pointer; text-align: center;

// update pause logic using new tracking function patchedPauseAudio() { if (!isPlaying || !sourceNode || !audioContext) return; if (sourceNode && audioContext && window._sourceStartTime !== null) if (sourceNode) { try sourceNode.stop(); catch(e) {} sourceNode.disconnect(); sourceNode = null; } isPlaying = false; window._sourceStartTime = null; updatePlayButtonsState(); statusTextSpan.innerText = "Paused"; } tai phan mem pitch shifter - html5

const newSource = audioContext.createBufferSource(); newSource.buffer = audioBuffer; const rate = semitonesToRate(currentPitchSemitones); newSource.playbackRate.value = rate; newSource.connect(audioContext.destination); newSource.start(0, offsetSec); sourceNode = newSource; isPlaying = true; // when buffer ends naturally, reset play state newSource.onended = () => if (sourceNode === newSource) isPlaying = false; pauseOffset = 0; sourceNode = null; updatePlayButtonsState(); statusTextSpan.innerText = "Finished"; setTimeout(() => if (audioBuffer && !isPlaying) statusTextSpan.innerText = "Stopped"; , 1200); ; updatePlayButtonsState(); return newSource; } .file-label background: #2d3a4b

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"; } catch(e) {} sourceNode.disconnect()

// Override start source tracking let originalCreate = createAndStartSource; // Redefine createAndStartSource with startTime tracking window._sourceStartTime = null;

function initAudioContext() window.webkitAudioContext)(); // Enable iOS / auto resume on first user gesture via button, but we will also resume on play return audioContext;