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Amiga computer related discussion => General chat about Amiga topics => Topic started by: LoadWB on February 19, 2009, 04:51:17 AM

Title: AAC codec for 68k?
Post by: LoadWB on February 19, 2009, 04:51:17 AM

Recently I have begun playing with the AAC codec (in m4a wrapper) for my music, and have found it to be a wonderful change from MP3.

Of course I would like to share this with my Amiga.  There are quite a lot of MP3 utilities for the 68k Amiga, but little for AAC.  I searched AmiNet and found faad2 for 68k listed, but have not yet played with it -- it looks like it has a command line decoder, but nothing to play real-time.

What I would like to find is something which would play AAC files in 68k, like a plugin for AMP.  Although, I believe the complexity might be such that it would require a DSP like the Delfina for playback.

Anyone have any thoughts or information on this?

Title: Re: AAC codec for 68k?
Post by: 0amigan0 on February 19, 2009, 10:24:59 AM

@LoadWB:

On Aminet there's PlayOGG, which supports a myriad of formats including AAC.

Here it is: http://aminet.net/package/mus/play/playOGG

Title: Re: AAC codec for 68k?
Post by: ChaosLord on February 19, 2009, 10:42:52 AM

Which is better?  .mp3, .ogg or .aac?

Title: Re: AAC codec for 68k?
Post by: stefcep2 on February 19, 2009, 11:21:56 AM

ogg is lossless compression? better?

Title: Re: AAC codec for 68k?
Post by: 0amigan0 on February 19, 2009, 11:31:23 AM

Quote

stefcep2 wrote:
ogg is lossless compression? better?

Ogg is NOT lossless!

Title: Re: AAC codec for 68k?
Post by: odin on February 19, 2009, 11:34:38 AM

But Ogg Vorbis does have better compression, at least compared to MP3. Dunno about AAC.

Title: Re: AAC codec for 68k?
Post by: LoadWB on February 19, 2009, 03:40:40 PM

I have found AAC at 128kbps to produce MUCH better sound quality than MP3s with VBR-encoding (via lame 3.98 library, anyway.)

Since the equipment I deal with supports MP3 and AAC, I have not tried Ogg Vorbis.  I'll check out PlayOgg to see how it handles AAC files this weekend when I have a half-hour to spare.

Title: Re: AAC codec for 68k?
Post by: Zac67 on February 19, 2009, 06:54:34 PM

MP3 sucks at 128 kbps but is pretty good to excellent at 192 or 256 kbps - obviously more modern codecs score better.

Title: Re: AAC codec for 68k?
Post by: da9000 on February 20, 2009, 06:10:18 AM

Really quick here (I can talk for hours about codecs/compression/audio/video):

Ogg and AAC are quite modern. Ogg is better at most bitrates BUT low bit rates. At least that was the status as of a couple of years ago (been really busy with other things lately, hehe).

Here are some great links:
http://www.rjamorim.com/test/index.html
&
http://www.rjamorim.com/test/multiformat128/results.html
&
http://www.hydrogenaudio.org/forums/index.php?showtopic=21904&hl=
http://www.hydrogenaudio.org/forums/index.php?showtopic=36465
http://www.hydrogenaudio.org/forums/index.php?showtopic=35438

http://cec.concordia.ca/econtact/9_4/tsabary.html
http://www.soundexpert.info/

More at:
http://en.wikipedia.org/wiki/Comparison_of_audio_codecs
http://www.doom9.org/codec-comparisons.htm

And lossless codecs:
http://wiki.hydrogenaudio.org/index.php?title=Lossless_comparison
http://www.hydrogenaudio.org/forums/index.php?showtopic=55868