In an echo data hiding technique, the secret message is embedded into a __________as an echo.
A . Cover audio signal
B . Phase spectrum of a digital signal
C . Pseudo-random signal
D . Pseudo- spectrum signal
Answer: A
In an echo data hiding technique, the secret message is embedded into a __________as an echo.
A . Cover audio signal
B . Phase spectrum of a digital signal
C . Pseudo-random signal
D . Pseudo- spectrum signal
Answer: A