which format to use

[Terka]

which format to use for dvd backup (normal film)?
which bitrate?
(im not able to hear the difference between 160kbs mp3 and original.)

[CarlEdman]

AAC using neroaacenc at constant quality of 35. With audio, as with video, picking a quality and allowing the software to pick how many bits that will take is the better option for almost all modern use cases.

[Terka]

on page
http://wiki.hydrogenaudio.org/index.php?title=Nero_AAC
i can see the quality between 0 and 1. does it mean i should pick 0.35?

[nurbs]

Yes ...

[CarlEdman]

Not quite. :) It means that *I* pick 0.35 and am happy with the space/quality trade-off. But depending on your requirements, a smaller or larger number might work better for you. The only way to find out is to experiment a little bit (and 0.35 might be a good starting point for that!).

[Terka]

ok. the command line utility cant import ac3, only wav.

[Terka]

want convert aa3->aac
where get the actual, not outdated dlls (ac3enc.dll, bsn.dll) for BeSweet?
because
neroAacEnc.exe accepts only wav as input. :devil:

[Midzuki]

Try eac3to (requires NeroAACenc.exe).

P.S.: What is the problem in converting the original .AC3 to an intermediate .WAV? :)

[tebasuna51]

To convert ac3 -> m4a (or mp4 with AAC audio) use eac3to with NeroAacEnc at same eac3to folder:
eac3to input.ac3 output.m4a -quality=0.35

For BeSweet use the last BeLight GUI (http://kurtnoise.free.fr/BeLight/BeLight-0.22_RC1.exe) and the last bsn.dll (bsn_20070513.zip), forget ac3enc.dll (obsolete) and use Aften like ac3 encoder instead.

[Terka]

Thank you!
Ill try. T.

[michellylei]

want convert aa3->aac
where get the actual, not outdated dlls (ac3enc.dll, bsn.dll) for BeSweet?
because
neroAacEnc.exe accepts only wav as input. :devil:

to convert to aac, you can try other tool like SUPER
NO trial or evaluation version of SUPER © but one unique
Free to download and Free to use fully working version
so you do not need to headache the outdated dlls.
if super not work for you, check more freeware at
http://www.effware.com/content/7-best-free-media-converter

[Blue_MiSfit]

eac3to is by far the simplest solution IMO. Download it, and unzip it to a folder somewhere on your PC, then add that folder to your PATH variable..


eac3to input.ac3 output.m4a -quality=0.35


Done... ;)

[michellylei]

eac3to is by far the simplest solution IMO. Download it, and unzip it to a folder somewhere on your PC, then add that folder to your PATH variable..


eac3to input.ac3 output.m4a -quality=0.35


Done... ;)
No NeroAACenc.exe required?

[kypec]

No NeroAACenc.exe required?
NeroAACEnc.exe IS REQUIRED but can be freely downloaded from Nero website. What's the problem with that?

[Terka]

ok, tried the command line and it looks good!
thank you all!
eac3to v3.18
command line: eac3to.exe e:\aaa.ac3 e:\aaa.m4a -quality=0.35
------------------------------------------------------------------------------
AC3, 2.0 channels, 0:24:00, 224kbps, 48khz, dialnorm: -27dB
The Nero decoder doesn't seem to work, will use libav instead.
Removing AC3 dialog normalization...
Decoding with libav/ffmpeg...
Reducing depth from 64 to 32 bits...
Encoding AAC <0.35> with NeroAacEnc...
eac3to processing took 55 seconds.
Done.
is the log OK?

[kypec]

Yes, your log looks perfectly OK. I usually also -normalize my AC3 -> AAC encodings but that's just a personal preference.

[Terka]

Thank you!