Function startWith

static/js/chunkedAudioEngine.js:320–329

(buffers)

    const offsetWithin = _startOffset - chunkIdx * CHUNK_SEC;

    const startWith = (buffers) => {
      if (!playing || destroyed) return;
      const when = ctx.currentTime + 0.05;
      _startCtxTime = when;
      const dur = _scheduleChunk(buffers, when, offsetWithin);
      _scheduledTo = _startOffset + dur;
      _audioStarted = true;
      _fetchChunk(chunkIdx + 1); // pre-fetch next chunk
      rafId = requestAnimationFrame(_tick);
    };

    // chunk 0 is pre-decoded during ready(), so the sync path is the hot path.
    const hit = _cache.get(chunkIdx);