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Topic: Why these is a HOLE in my AAC file? (Read 1539 times) previous topic - next topic
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Why these is a HOLE in my AAC file?

I'm trying to convert my files to AAC by using qaac. But there is a hole in the converted aac file.

Don't know why this happens.

command:
qaac64.exe -V 91 "my_music.wav" -o test.aac


qaac 2.79, CoreAudioToolbox 7.10.9.0

test.aac
AAC-LC Encoder, TVBR q91, Quality 96
[100.0%] 3:56.933/3:56.933 (77.4x), ETA 0:00.000
10448760/10448760 samples processed in 0:03.061
Overall bitrate: 180.103kbps
Optimizing...done

I also tried other files, still having this issue.

Re: Why these is a HOLE in my AAC file?

Reply #1 –
Psychoacoustic model decided that the content there is masked by other sound and encoding it would be a waste of available bits.

Re: Why these is a HOLE in my AAC file?

Reply #2 –
AAC will do that yes. It is really quiet anyway as far as i can see from your picture.
Is this a trap song? cuz the bass is overshadowing anything else anyway.

Re: Why these is a HOLE in my AAC file?

Reply #3 –
That looks a bit scary for 180k TBH. Hopefully its way up at 16k plus.
Can you try CVBR mode ?

Re: Why these is a HOLE in my AAC file?

Reply #4 –
Given that there is even some blue in that graphic, could I ask what level is that red at?