1.Discard frozen frames once their magnitude has decayed sufficiently(e.g., -60 dB)
¥For a 1 second decay timeand 2048 sample hop size at 44.1 kHz, we would need to update the magnitudes and phasesof 22 frozen frames at each hop
¥This could still beburdensome for long decay times
2.Consolidate groups of frames having similar phase increments