Audio Steganography
**Audio steganography** is a technique of hiding secret information within audio files, without altering the perceptible quality of the audio. Dating back to ancient times, steganography has evolved with technological advancements, including the digital era. In **audio steganography**, data is embedded within the audio signal by slightly modifying the amplitude or frequency of the sound waves, or by exploiting the imperceptible properties of audio files such as phase shifting or LSB (Least Significant Bit) substitution. This covert communication method finds applications in various fields like digital watermarking, covert communication, and copyright protection. While it can be used for legitimate purposes such as securing confidential data, it also poses challenges for digital forensics and security professionals in detecting hidden information.