Blind Key Based Attack Resistant Audio Steganography Using Cocktail Party Effect

Table 8

Experimental results of pitch shifting attack.

Original secret in cover audio	Extracted secret after 20% reduction of audio pitch	Extracted secret after 20% increment of audio pitch	Extracted secret after 40% increment of audio pitch
	PSNR: 68.9396; SSIM: 0.9998	PSNR: 69.6680; SSIM: 0.9998	PSNR: 70.1890; SSIM: 0.9999
	PSNR: 63.4898; SSIM: 0.9993	PSNR: 65.0246; SSIM: 0.9995	PSNR: 65.9614; SSIM: 0.9996