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Old 27th June 2016, 17:22   #13999  |  Link
manolito
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Join Date: Sep 2003
Location: Berlin, Germany
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Quote:
Originally Posted by tebasuna51 View Post
eac3to input.aac output.ac3 -normalize -2dB

first do the -2dB gain an after normalize, then the first operation is useless.
If first normalize and after apply -2dB, or better if take the value -2dB to limit to normalize, the process can be solved with only one pass.
Sorry I am not sure if I understand you correctly...

I did try your command line with "-normalize -2dB", and the result is that eac3to first applies a -2db gain decrease and afterwards normalizes to 0dB again. Here is the log:
Quote:
eac3to v3.31
command line: "E:\Programme\StaxRip\Applications\eac3to\eac3to.exe" "I:\test temp files\test ID1 - iv-Undetermined 18ms.wav" "I:\test temp files\test ID1 - iv-Undetermined 18ms_Output.ac3" -448 -normalize -2dB -down16 -progressnumbers

------------------------------------------------------------------------------
WAV, 5.1 channels, 0:05:00, 16 bits, 4608kbps, 48kHz
Reading WAV...
Reducing depth from 64 to 16 bits...
Writing WAV...
Applying -2dB gain...
Creating file "I:\test temp files\test ID1 - iv-Undetermined 18ms_Output.ac3.pass1.wav"...
The original audio track has a constant bit depth of 16 bits.
The processed audio track has a constant bit depth of 16 bits.
Starting 2nd pass...
Reading WAV...
Reducing depth from 64 to 16 bits...
Remapping channels...
Encoding AC3 <448kbps> with libAften...
Applying 3.8dB gain...
Creating file "I:\test temp files\test ID1 - iv-Undetermined 18ms_Output.ac3"...
The processed audio track has a constant bit depth of 16 bits.
eac3to processing took 2 minutes, 2 seconds.
Done.
I want to limit the normalize gain to a max peak value of -2dB, how can I achieve this with eac3to?

Another question about the command line generated by StaxRip:
Is the "down16" parameter meaningful? Does libaften cause problems with an input which has a higher bit depth?


Cheers
manolito
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