[Icecast] Frauenhofer signing off on mp3, ogg stream player for Macs?

Jack Elliott thatjackelliott at kpov.org
Mon May 15 22:34:41 UTC 2017


Hi Robert . . . so you're saying that you're feeding Icecast2 an AAC 
stream and it's not complaining?

-- 
That Jack Elliott
(541) 848 7021
KPOV 88.9 FM High Desert Community radio
Producer, The Wednesday Point
Host, The Sunday Classics

On 5/15/2017 3:25 PM, Robert Jeffares wrote:
> Jack,
>
> I am using AAC+ encoded by Darkice and distributed on Icecast2 on a 
> Ubuntu server. I had to install a number of open source libraries and 
> compile darkice from source. No licence.
>
> non-free means you build each one stand alone and can't re distribute.
>
> Quality is excellent, and it runs on most players.
>
> I kept some notes [see below]
>
> I am using AAC+ to feed a couple of LPFM sites with almost zero errors 
> over what had been troublesome paths for mp3
>
> HE-AAC audio v2 (with SBR + PS) is the superb audio encoder used to 
> encode high quality audio at really low bitrates (32 kbit/s). Quote 
> from Wikipedia "Data from this testing also indicated that some 
> individuals confused 48 kbit/s encoded material with an uncompressed 
> original."
>
> In order to quickly compile your ​libaacplus library, you can type the 
> following commands in your shell:
>
> # apt-get install libfftw3-dev pkg-config autoconf automake libtool unzip
> $ wget 
> http://tipok.org.ua/downloads/media/aacplus/libaacplus/libaacplus-2.0.2.tar.gz
> $ tar -xzf libaacplus-2.0.2.tar.gz
> $ cd libaacplus-2.0.2
> $ ./autogen.sh --enable-shared --enable-static
> $ make
> # make install
> # ldconfig
>
> P.S. If you are using Ubuntu, you'll most probably have to use sudo 
> for the last 2 commands, like:
>
> $ sudo make install
> $ sudo ldconfig
>
> In case that website above (hosting libaacplus) goes offline, you can 
> download the copy of that tar.gz file from here: (MD5: 
> 3fc15d5aa91d0e8b8f94acb6555103da)
>
> $ wget http://ffmpeg.gusari.org/uploads/libaacplus-2.0.2.tar.gz
>
> More info at: ​http://tipok.org.ua/node/17
>
> NOTE: libaacplus is a non-free library, so you won't be able to build 
> GPL alike FFmpeg with this library, i.e. your FFmpeg will not be 
> redistributable.
>
>
>
> regards
>
>
> Robert Jeffares
>
>
> On 16/05/17 09:46, Jack Elliott wrote:
>> Fraunhofer Institute for Integrated Circuits has stopped providing 
>> licenses for MP3 technology, "[...] noting that more superior audio 
>> formats have rendered the MP3 obsolete. Speaking to National Public 
>> Radio (USA), the Fraunhofer Institute said AAC has since become the 
>> 'de facto standard for music download and videos on mobile phones.' "
>>
>> http://www.networkworld.com/article/3196788/consumer-electronics/mp3-player-ipod-licensing-dead.html 
>>
>>
>> This raises a point I wanted to ask about. Icecast supports mp3 (it's 
>> the current lowest-common denominator for media players, yes?) and 
>> ogg. I'd like to send a higher-fidelity stream from our music 
>> festival remotes, but ogg isn't an option because the station's media 
>> player, iTunes (running on a Mac) doesn't support ogg.
>>
>> Is there any work being done to support AAC in Icecast? Oh, wait. Use 
>> of AAC in an encoder requires paying a licensing fee. Drat.
>>
>> So we have mp3 (free, sounds crummy, everything plays it) and ogg 
>> (free, sounds better, but does anyone know of any programs for Macs 
>> that can play an ogg stream?)
>>
>



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