An Antiforensic Method against AMR Compression Detection

Table 1

Successful attack rate (SAR) of antiforensic double AMR audio clips (%).

Size (s)	Method	Bit rates (kbps)								Average
		4.75	5.15	5.9	6.7	7.4	7.95	10.2	12.2
0.5	[2]	97.07	93.96	98.41	95.28	96.52	97.40	96.88	97.59	96.63
	[3]	95.82	92.74	93.95	94.26	93.53	96.83	91.75	94.85	94.20
	[6]	94.95	96.49	92.60	97.25	96.55	91.64	98.28	93.75	95.69
1	[2]	97.66	98.05	98.15	91.72	95.78	98.42	92.17	94.82	95.82
	[3]	98.33	97.94	98.30	93.69	96.72	96.59	96.08	91.01	96.21
	[6]	94.05	96.88	92.20	90.63	86.08	91.26	91.73	90.23	91.63
2	[2]	96.12	90.95	97.17	91.56	95.86	98.49	98.12	97.32	95.70
	[3]	96.23	99.35	98.59	93.41	92.32	91.34	96.91	93.27	95.15
	[6]	94.77	92.88	95.26	89.14	89.00	95.25	90.19	96.85	92.91
3	[2]	98.86	96.06	93.32	98.05	95.35	93.36	85.95	96.74	94.71
	[3]	97.57	96.37	94.72	98.45	97.51	98.05	96.74	93.19	96.68
	[6]	93.36	96.61	94.72	92.20	93.86	91.56	94.14	92.53	93.62