Hi all,

2013/7/9 Ashworth Payne <[email protected]>:
> If I may...
>
> 128k aac+ is a waste of 128k.  I have a 32k and 64k (both are stereo) and it 
> sounds sublime.  I transcode from mp3 and use a few plugins for 
> compression/limiting.

I agree with this, at 128k, you may as well have mp3, which provides
good quality at this bitrate and is widely supported.

As for setting up AAC+, you should use the new fdk-aac encoder with
liquidsoap 1.1.1, it is much more flexible and has better quality.

> 1. Will aacplus accept mono streams?
 >   We use audio_to_stereo() and mean() in our liq scripts on mp3 files.

It should, yes.

> 2. I gather it can be used with Icecast - as in
> 'output.icecast(%accplus(...))'

Yes but for fdk-aac it would be %fdkaac. Documentation is there, as usual:
  http://liquidsoap.fm/doc-svn/encoding_formats.html

> 3. Do I need to recompile with aacplus (internal)?

Depends how you installed liquidsoap. With the current debian package,
you may only have to compile and install ocaml-fdkaac. Otherwise yes.
a rebuild may be required.

Good luck!
Romain

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