Blind Key Based Attack Resistant Audio Steganography Using Cocktail Party Effect

Table 7

Results of requantization attack.

Original secret embedded in cover audio of 16-bit depth	Extracted secret after changing audio bit depth to 8 bits	Extracted secret after changing audio bit depth to 24 bits	Extracted secret after changing audio bit depth to 32 bits
	PSNR: 72.2816; SSIM: 0.9999	PSNR: 72.1459; SSIM: 0.9999	PSNR: 72.1459; SSIM: 0.9999
	PSNR: 67.7953; SSIM: 0.9998	PSNR: 67.7465; SSIM: 0.9998	PSNR: 67.7465; SSIM: 0.9998