Towards Generating Adversarial Examples on Combined Systems of Automatic Speaker Verification and Spoofing Countermeasure

Table 4

Trial analysis of step-by-step attack. The number of trials labeled target, nontarget, and spoof accepted by systems is shown in the table.

System	Target	Nontarget	Spoof
Before attack	6,840	1,895	4,094
ASV ⟶ CM	6,843	1,895	78,091
CM ⟶ ASV	6,841	39,039	4,094
Total number	6,854	39,095	86,178