Robust and Blind Audio Watermarking Algorithm in Dual Domain for Overcoming Synchronization Attacks

Table 3

Attack types and specifications.

Item	Attack type	Description
A	MP3 compression	Applying MP3 compression with 64 kbps and 128 kbps.
B	Noise corruption	Adding Gaussian noise with 20 dB, 30 dB, and 40 dB.
C	Requantization	Quantizing the carried audio with 16 bit-8 bit-16 bit per sample.
D	Resampling	Dropping the sampling rate with 44.1 kHz-22.05 kHz-44.1 kHz.
E	Echo addition	Adding an echo with a delay of 50 ms and 100 ms.
F	Low-pass filtering	Applying low-pass filter with 4 kHz, 8 kHz, and 12 kHz.
G	Amplitude scaling	Scaling the carried audio’s amplitude by 0.8 and 1.2.