Signal isolation refers to the practice of preventing unwanted interference between different electrical signals. This is important in various applications, such as in telecommunications and audio equipment, where clear and accurate signal transmission is essential. By isolating signals, devices can operate without affecting each other, leading to improved performance and reliability. One common method of achieving signal isolation is through the use of optical isolators or transformers. These components allow signals to pass while blocking unwanted noise or feedback. This ensures that the integrity of the original signal is maintained, which is crucial for effective communication and data processing.