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[HELP] encoded audio info is not what expect
#1
try to encode a MKV file(X264+PCM), to a MP4(X264+AAC), encode ASS embed into video,

the original MKV audio info is:

Audio
ID                            : 2
Format                        : PCM
Format settings                : Little / Signed
Codec ID                      : A_PCM/INT/LIT
Duration                      : 44 min 47 s
Bit rate mode                  : Constant
Bit rate                      : 1 536 kb/s
Channel(s)                    : 2 channels
Sampling rate                  : 48.0 kHz
Frame rate                    : 2.000 FPS (24000 SPF)
Bit depth                      : 16 bits
Stream size                    : 492 MiB (3%)
Language                      : Chinese



and i set AAC bitrate in Hybrid is 3072K

[Image: szDb9krnVxQHOiB.jpg]

 
but encoded file audio bitrate is 439K/S, max bitrate is 520K/S, is not what i set 3072K, is much lower than 3072K, why?

Audio
ID                            : 2
Format                        : AAC LC
Format/Info                    : Advanced Audio Codec Low Complexity
Codec ID                      : mp4a-40-2
Duration                      : 44 min 47 s
Bit rate mode                  : Variable
Bit rate                      : 439 kb/s
Maximum bit rate              : 520 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                    : 140 MiB (1%)
Language                      : Chinese
Encoded date                  : UTC 2021-02-27 17:38:07
Tagged date                    : UTC 2021-02-27 17:38:08
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Messages In This Thread
encoded audio info is not what expect - by ssdde - 27.02.2021, 20:40

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