General
Complete name                            : 21.m4a
Format                                   : MPEG-4
Format profile                           : Apple audio with iTunes info
Codec ID                                 : M4A  (M4A /mp42/isom)
File size                                : 15.3 MiB
Duration                                 : 23 min 41 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 90.4 kb/s
Encoded date                             : UTC 2019-12-31 08:04:46
Tagged date                              : UTC 2019-12-31 08:05:18
Writing application                      : qaac 2.68, CoreAudioToolbox 7.10.7.0, AAC-LC Encoder, TVBR q64, Quality 96
Encoding Params                          : (Binary)

Audio
ID                                       : 1
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 23 min 41 s
Bit rate mode                            : Variable
Bit rate                                 : 88.9 kb/s
Maximum bit rate                         : 160 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 15.1 MiB (98%)
Encoded date                             : UTC 2019-12-31 08:04:46
Tagged date                              : UTC 2019-12-31 08:05:18