Apakah Anda tahu mengapa Calculation 1
di bawah ini tidak cocok?
Referensi:
Buffer audio: bingkai, sampel dan saluran
VLC - Media Information:
num channels: 2 (stereo)
sample rate: 44100 Hz
bits per sample: 32 => bytes per sample: 4
bitrate: 192 kb/s
duration: 7 mins, 23 secs => 443 secs
Windows - File Properties:
size: 10,642,422 bytes => 10393 KB
Perhitungan 1 (tanpa menggunakan bitrate) (menggunakan nilai bulat untuk kesederhanaan)
1 second: 44100 samples => 44100 * 4 = 176400 bytes => 172 KB (looks a lot for just 1 sec)
This way: 443 secs => 443 * 172 KB = 76196 = 74 MB, but the file just 10 MB (!!! Contradiction !!!)
Perhitungan 2 (menggunakan bitrate)
bitrate: 192 kb/s => 24 KB/s
1 second: 24KB => 443 seconds: 443 * 24 KB = 10632 KB = 10393 KB (like above) + [some metadata] (!!! Match !!!)
Terima kasih!