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ogg vs. mp3, video game music, oh my!
 

offline sneakattack on 2004-06-23 04:53 [#01252191]
Points: 6049 Status: Lurker



Hi friends,
I was bored, and had some fun pitting these two jerks
against eachother again; please check it out. I was messing
around a lot and it should make for a fun read. At least
look at the pictures and download...

I used Gradius 3 (SNES) boss music for all tests. Discuss
that at least! It's all over the place.


 

offline JAroen from the pineal gland on 2004-06-23 05:55 [#01252307]
Points: 16065 Status: Regular



you know, you should paste the encoded audio over the
original - inverted - wave files, and THEN run a fourier
over it. that way youll be able to see only the differences
between the original and the source file


 

offline sneakattack on 2004-06-23 05:59 [#01252314]
Points: 6049 Status: Lurker | Followup to JAroen: #01252307



Yeah, I was dicking around with tools I have at the moment
though (no sound editing shit). If I ever come back to it
properly, like I said I'll figure out a proper comparison
heuristic and just go from scratch with that.

did you do that when you were dicking arond upon purchasing
your iriver?


 

offline sneakattack on 2004-06-23 06:00 [#01252315]
Points: 6049 Status: Lurker | Followup to sneakattack: #01252314



my posts suck when not tired--when about to fall asleep:
pure misery


 

offline JAroen from the pineal gland on 2004-06-23 06:01 [#01252316]
Points: 16065 Status: Regular



no i didnt care about mp3 vs ogg, it could play both

i started to check the differences afterwards

on an unrelated side note, are pi or e 's decimals
random? i tought they were but im not sure anymore


 

offline sneakattack on 2004-06-23 06:03 [#01252319]
Points: 6049 Status: Lurker | Followup to JAroen: #01252316



there's been no pattern found so far (unless I'm retarded);
it still requires massive computational effort to squeeze
out more digits.

As far as whether they are truly random--as in, you could
use them as the source of a random number generator with a
good distribution--I don't know.


 

offline Doomed Puppy from on and off and on and off and on 2004-06-23 06:06 [#01252322]
Points: 1818 Status: Addict



Wow someone DID answer. That's pretty amazing.


 

offline horsefactory from 💠 (United Kingdom) on 2004-06-23 06:06 [#01252323]
Points: 14867 Status: Regular



It's clear that ogg is technically better in every way but
to my ears an mp3 encoded in lame w/ alt-preset standard is
perfect.


 

offline JAroen from the pineal gland on 2004-06-23 06:08 [#01252325]
Points: 16065 Status: Regular



i hope so

there would be a part that represents a image of me
somewhere

chance of finding it is infinitly small, but who cares

somewhere in there is my face!


 

offline sneakattack on 2004-06-23 06:08 [#01252326]
Points: 6049 Status: Lurker | Followup to JAroen: #01252316



By the way, from wikipedia:

The most pressing open question about π is whether it
is normal, i.e. whether any digit block occurs in the
expansion of π just as often as one would statistically
expect if the digits had been produced completely
"randomly". This must be true in any base, not just in base
10. Current knowledge in this direction is very weak; e.g.,
it isn't even known which of the digits 0,...,9 occur
infinitely often in the decimal expansion of π.


 

offline JAroen from the pineal gland on 2004-06-23 06:08 [#01252327]
Points: 16065 Status: Regular | Followup to Doomed Puppy: #01252322



when youre this bored
|---------------------------------------------------------|
you answer everything


 

offline sneakattack on 2004-06-23 06:09 [#01252328]
Points: 6049 Status: Lurker | Followup to horsefactory: #01252323



I'll play with it some time, thanks. The new avatar timing
rules.


 

offline JAroen from the pineal gland on 2004-06-23 06:09 [#01252329]
Points: 16065 Status: Regular



it isn't even known which of the digits 0,...,9 occur
infinitely often in the decimal expansion of ð.

count them for chrissake!


 

offline sneakattack on 2004-06-23 06:11 [#01252330]
Points: 6049 Status: Lurker



I've heard that the apple AAC encoding is nice--anyone care
to confirm/disprove this?

I really should redo those tests properly..

PS Jaroen, if I do so, I'll look into whether applying the
fast fourier when I did actually makes comparisons more
sensitive..


 

offline sneakattack on 2004-06-23 06:13 [#01252331]
Points: 6049 Status: Lurker | Followup to JAroen: #01252329



(see also)


 


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