Speech Watermarking for Tampering Detection Based on Modifications to LSFs

Table 2

Bit detection rates for fragility tests.

Processing	Bit detection rates (%)
	Nonblind detection	Blind detection
No modifications	100.00	98.75
GTFT	55.00	86.25
White noise	68.75	47.50
Reverberation	63.73	46.25
Low-pass filter	43.75	58.75
High-pass filter	41.25	43.75
Concatenation	37.50	50.00