View Full Version : a better HE-AAC encoder instead of Nero digital?

chris goussey
08-09-2004, 09:51 PM
the aac+ ecoder of nero digital doesn't produce high quality encodings, it converts too "robust", produces for example a lot of clipped samples. I wander if there are any other encoders for use in dbpoweramp

08-10-2004, 06:36 AM
Nero created AAC HE, and AFAIK they have the only encoder.

chris goussey
08-10-2004, 10:28 PM
Nero created their HE-AAC encoder together with ateme, but the format is an ISO standard. As far as i know, converting audio to 64 kb/s with he-aac will deliver better quality compared with wma (of course) and even mp3pro. Then why isn't it used more?

08-12-2004, 04:43 AM
It is an iso, but Nero will have the patents on it.

chris goussey
08-12-2004, 05:08 AM
what i've said about the clipped samples: it's just bullshit - it occurs with other formats to (ogg - lame mp3). I was to hard for the encoders by amplifying a wave-file so that it just didn't clipped - and then I encode the file. I don't say they aren't a little little clipped, but it's impossible to hear.

09-12-2004, 06:36 PM
Generally it's not recommended to make a WAV file louder than it originally was before encoding it, because the codec will sometimes increase the loud passages, too, so "by amplifying a wave-file so that it just didn't clipped" you are heading for trouble with almost any compression format. Some codecs like LAME prevent this with special internal settings, but others don't. The usually recommended way to normalize different volume levels of an album before encoding is to only lower the loud passages, e.g. with tools like ReplayGain.

Concerning the question about other HE AAC codecs there is Real or rather Helix Producer which comes with a Coding Technologies HE AAC codec (who invented it, not Nero). As far as I have understood their license jungle, this is only available for developers implementing Helix Producer in their own applications.

02-10-2005, 08:22 PM
I've created a CLI encoder based on the Coding Technologies reference encoder sourcecode (which is freely available). Please see:

--Brandon Siegel