5 Questions
What is the standard form of digital audio in computers, compact discs, and digital telephony?
Pulse-code modulation (PCM)
In which type of PCM are the quantization levels linearly uniform?
Linear pulse-code modulation (LPCM)
What determines the number of possible digital values in a PCM stream?
Bit depth
Which property of a PCM stream is defined as the number of times per second that samples are taken?
Sampling rate
In contrast to LPCM, which PCM encodings have quantization levels that vary as a function of amplitude?
A-law algorithm and μ-law algorithm
Study Notes
Digital Audio Standards
- The standard form of digital audio in computers, compact discs, and digital telephony is Pulse Code Modulation (PCM).
PCM Quantization
- In Linear PCM (LPCM), the quantization levels are linearly uniform.
PCM Stream Properties
- The number of possible digital values in a PCM stream is determined by the number of bits used for quantization.
- The sampling rate of a PCM stream is defined as the number of times per second that samples are taken.
Non-Linear PCM Encodings
- In contrast to LPCM, non-linear PCM encodings, such as A-law and μ-law, have quantization levels that vary as a function of amplitude.
Test your knowledge of Pulse-Code Modulation (PCM) with this quiz. Explore the key concepts of digital audio representation, sampling, quantization, and applications in various digital audio systems.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
