APEC.MTV.TM . IRC.IOC.ID . CAAC.PRC.ABC What is the Chinese meaning? The Chinese meaning of abbreviations

APEC.MTV.TM . IRC.IOC.ID . CAAC.PRC.ABC What is the Chinese meaning? The Chinese meaning of abbreviations

APEC Asia Pacific economic co operation
MTV music TV
TM trade mark
IRC Internet Relay Chat
IOC International Olympic Committee
ID identification
CAAC the Civil Aviation Administration of China
PRC People's Republic of China
ABC American born Chinese

What do "DDD" and "CAAC" mean?

CAAC is the abbreviation of CAAC
the Civil Aviation Administration of China
Civil Aviation Administration of China
"DDD" is AAD, add, DDD marked on CD
AAD ADD DDD
It's about how records are made
Aad: short for analog recording, analog mixing and digital plate making. Mostly used in the early 1980s, it has the advantages of good sense of real music, but the disadvantages are limited by the signal to noise ratio of analog recording, so the background is noisy;
Add: short for analog recording, digital mixing and digital plate making. The master tape of recording still uses magnetic tape, and the later stage uses digital processing. It combines the advantages of digital and analog technology;
DDD: short for digital recording, mixing and plate making. It is mostly used in modern music making, such as 4D HDCD.XRCD And so on are developed on the basis of DDD
As for 4D, DDD uses special technology to make the sound closer to natural sound
Generally speaking, analog recording can better maintain the natural timbre, but it lacks the signal-to-noise ratio of digital recording
Some of the best recordings are mostly analog