Keep 1 std from mean			Keep 2 stds from mean			Keep 3 stds from mean		
Audio File 	Original size	Size after compression	% compressed	Quality	Size after compression	% compressed	Quality	Size after compression	% compressed	Quality
DING.wav (fairly flat tones)	20191	19915	1.37	Good	20061	0.64	Good	20088	0.51	Good
NOTIFY.wav	29823	29196	2.1	Okay	29469	1.19	Good	29574	0.83	Good
Musica Close.wav	43777	37773	13.71	Okay	40905	6.56	Good	41963	4.14	Good
Musica Asterisk.wav	26304	25513	3.01	Okay	25941	1.38	Good	26087	0.82	Good
Utopia open.wav	4330	48	98.89	Can't hear anything	99	97.71	Can't hear anything	149	96.56	Can't hear anything
EE_REV.wav	117600	67303	42.77	Bad	83121	29.32	Okay	91762	21.97	Okay
TADA.wav	42752	29583	30.8	Bad	34563	19.15	Bad	36830	13.85	Okay
RECYCLE.wav	12671	57	99.55	Can't hear anything	109	99.14	Can't hear anything	168	98.67	Can't hear anything