Abstract: With the rapid development of digital communication technology, pulse code modulation (PCM), as a basic digital signal processing technology, has been widely used in the fields of speech, ...

#PCM import numpy as np import matplotlib.pyplot as plt # Parameters sampling_rate = 5000 # Sampling rate (samples per second) frequency = 50 # Frequency of the message signal (analog signal) duration ...

A PCM-Based Vocoder/Decoder, a voice codec software based on PCM of voice signals to send over data network, whose quantizer provides both mid-rise and mid-tread quantization techniques, and an ...

Analog transmission is not particularly efficient. When the signal-to-noise ratio of an analog signal deteriorates due to attenuation, amplifying the signal also amplifies noise. Digital signals are ...

スマートフォンで音楽を聴く時代になり、MP3やAACといった圧縮音源が当たり前になりました。しかし、音楽制作の現場や本格的なオーディオマニアの間では「リニアPCM」という言葉が重要なキーワードとして飛び交っています。「WAVファイルとの違いは？