The process of conversion to digital sound is known as _________.

The correct answer is Pulse code modulation

Key Points

Pulse Code Modulation (PCM) is a method used to digitally represent analog signals, such as audio signals. Here's the PCM process:

• Sampling: The first step in PCM involves taking samples of the continuous analog signal at regular intervals. This is done to capture the amplitude of the analog signal at specific points in time.
• Quantization: Each sample's amplitude is then assigned a numerical value. Quantization involves dividing the range of possible amplitude values into a finite number of discrete levels. The more levels used, the higher the precision of the digital representation.
• Encoding: After quantization, the numerical values (often represented in binary code) are assigned to each sample. This encoding process is what creates the digital representation of the original analog signal.
• Transmission/Storage: The resulting stream of digital values can be transmitted, stored, and manipulated more efficiently than the original analog signal. This digital representation can be reconstructed back into an analog signal when needed.

PCM is widely used in various applications, including digital audio encoding and storage. It provides a way to accurately represent analog signals in a digital form, allowing for easy transmission, storage, and processing of audio information.