Puppy Linux Discussion Forum

[tubeguy]

Aqualung 1114 running on my lappie, with luci-202. Notice the EQ, the center frequencies are at musical fundamentals. In case you're wondering where 880 is, one does not mess with the midrange.

I've sort of adopted Aqualung as a project. See this post for more, shoutouts to playdayz.

Click for full view

[Jim1911]

Have you been successful in getting Aqualung to play itunes files? Or identified the necessary plugins to play them?

Thanks,
Jim

[tubeguy]

[tubeguy]

Now on luci-515.

Latest pet, compiled for Puppy 5.x: http://distro.ibiblio.org/pub/linux/distributions/puppylinux/pet-packages-lucid/aqualung-0.9b11-Lucid.pet

TAP plugins here: http://tubeguy.org/puppybg/tap-plugins-0.7.1.tar.gz (Extract and run "make install" on the folder contents.)

Today I learned that the file ~/.aqualung/plugin.xml contains all plugin settings, I can now save that file and drop it in to a new Puppy install without having to redo all the plugin settings again. Cool!

In the pic is a setup I came up with to flatten out the response of my Grado SR60's. The cuts at bands 6 and 7 smooth out the somewhat ragged highs, cuts at 1 and 2 alleviate the slightly fat bottom, 5 and 6 seem to correct the sometimes too-forward midrange. Overall I get a clearer view into recordings, especially well-engineered records really shine now, like balance has been restored.

I also learned that one of the reasons Aqualung sounds so good is the MAD audio decoder library that Aqualung uses for MPEG audio which decodes to 24bit (preserved by Aqualung to the extent possible) and generally has much higher precision than most widely used libraries, this according to the Aqualung developer. Lots of hardware won't actually do 24 bit, but if the source is better than the hardware can handle, at least it will output the best possible signal. In production that would be called "professional headroom". In the case of Aqualung, using some extra CPU in order to do proper interpolation combined with native 24bit resolution results in a very high quality output.