![\"Audio](\"https:\/\/filesconverter.com\/images\/screenshots\/best-audio-quality.png\")
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The sound quality of music that you must know when you enjoy music.<\/p>\n
![\"audio](\"https:\/\/cdn.mos.cms.futurecdn.net\/JKXAQCvFWQD3nWRt2N3skW-480-80.jpg\")
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If you listen with all your strength, save the music with higher sound quality and<\/p>\n
I want to play music with high sound quality.<\/p>\n
The invisible thing called sound<\/p>\n
What is the standard for judging good sound?<\/p>\n
This time, we will deepen our understanding of “sound quality”.<\/p>\n
Table of contents [Open]
\nDifferent from the type of music file format
\nMusic moves from analog to digital music data.<\/p>\n
If you compress the sound source when you capture it, deterioration in sound quality is inevitable.<\/p>\n
First of all, because of the difference in the music file format (audio format).<\/p>\n
Uncompressed (linear PCM): WAV, AIFF
\nUncompressed WAV \/ AIFF<\/p>\n
By ripping a CD as-is without compressing it, it becomes an uncompressed sound source.<\/p>\n
WAV (WAVE) was developed by Microsoft (Windows) and IBM.<\/p>\n
AIFF (Audio Interchange File Format) was developed by Apple (Mac).<\/p>\n
WAV is a common uncompressed codec for PC,<\/p>\n
In Apple iTunes, WAV cannot handle metadata (tag information).<\/p>\n
If you add song information (song title, album art, etc.) with iTunes, it will be AIFF.<\/p>\n
If you want to save the amount of data, I think you can use ALAC with lossless compression.<\/p>\n
Lossy compression (lossy): MP3, AAC, WMA
\nMP3 \/ ACC \/ WMA lossy compression<\/p>\n
The most important lossy compression is “MP3 = MPEG-1 Audio Layer-3”.<\/p>\n
It has a long history and a high penetration rate.<\/p>\n
There is also the term “MP3 player” as a general term for digital music players.<\/p>\n
“AAC = Advanced Audio Cording” has appeared as an improved version of MP3.<\/p>\n
If the compression rate (bit rate) is the same as MP3,<\/p>\n
AAC (m4a) has superior sound quality.<\/p>\n
“WMA = Windows Media Audio” has a compression rate comparable to AAC.<\/p>\n
Developed by Microsoft and adopted by Windows,<\/p>\n
It is a codec that was not popular because it is not supported by Apple.<\/p>\n
For video, Blu-ray AC3, DVD MP2,<\/p>\n
There is also a Youtube Vorbis audio codec, but …<\/p>\n
The main music is MP3 and AAC.<\/p>\n
For lossy compression, you can also select the compression rate when compressing,<\/p>\n
For music data, 128 kbps, 160 kbps, 192 kbps, 256 kbps, 320 kbps are common.<\/p>\n
Bit rate (bps) is the amount of data per second, so<\/p>\n
The higher the number, the better the sound quality.<\/p>\n
* Uncompressed CD equals 1411 kbps<\/p>\n
There are almost no devices that cannot play MP3,<\/p>\n
Currently, AAC is as popular as MP3, so I choose AAC.<\/p>\n
If you want to import CD sound source with iTunes, iTunes Plus from AAC encoder.<\/p>\n
The stereo bit rate is 256 kbps and the sampling rate is 44,100 kHz.<\/p>\n","protected":false},"excerpt":{"rendered":"