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The ultimate Wave vs Mp3 showdown ;-)
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Quantec
Started Topics :
3
Posts :
25
Posted : Aug 20, 2008 02:34:00
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Inspired by some feaggles on Goabase...
- 2 loops, one 16bit wave, one 24bit wave
- The same soundfile
- 16bit wave, 320kb/s & 192kb/s mp3 in the 16bit wave file
- 24bit wave, 16bit wave, 320kb/s & 192kb/s mp3 in the second file
But in which order are they?? Can you hear that?
Here they come:
16bit loop:
http://uploaded.to/?id=19ui46
24bit loop:
http://uploaded.to/?id=7ga5pv
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ultraviolence
IsraTrance Junior Member
Started Topics :
30
Posts :
194
Posted : Aug 20, 2008 03:04
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Just listened to the 24 bit loop, i am at work so only have my Sony earphones here, not exactly monitoring equipment. Sounds like the first 2 loops in it are WAVs and the following 2 are MP3s, I would say it probably goes 16 bit, 24 bit, 320 and 192 for the 24 bit loop?
Cool thread by the way 
 -------------- Dark & Twisted Night Psy --------------
https://www.facebook.com/Ga73k33p3r-322985384842830/ |
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ultraviolence
IsraTrance Junior Member
Started Topics :
30
Posts :
194
Posted : Aug 20, 2008 03:08
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For the 16 bit I would say it goes 320, 16 bit WAV and 192?
This comparison is not a good indicator whether or not it is ok to play mp3s at parties as the differences are far more apparent on the big systems and that is where it counts!
-------------- Dark & Twisted Night Psy --------------
https://www.facebook.com/Ga73k33p3r-322985384842830/ |
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Quantec
Started Topics :
3
Posts :
25
Posted : Aug 20, 2008 03:19
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sorry this isnt correct :-(
In your 16bit election is 1 correct answer ;-) |
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Upavas
Upavas
Started Topics :
150
Posts :
3315
Posted : Aug 20, 2008 03:31
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mp3 is a form of delta pulse code modulation where some frequencies simply are taken out of the original wav file. With more amplitude (e.g.a big sound pa) you will hear most definitely a difference between an mp3 and a wav ...
Another effect is that the music still has the same amplitude as a wav file, but does not appear with the same spl intensity to the human ear. Thus so many youngsters these days are ruining their ears with mp3 players...
Give me the test on a big pa and I will certainly tell you a difference...
Upavas - Here And Now (Sangoma Rec.) new EP out Oct.29th, get it here:
http://timecode.bandcamp.com
http://upavas.com
http://soundcloud.com/upavas-1/ |
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ultraviolence
IsraTrance Junior Member
Started Topics :
30
Posts :
194
Posted : Aug 20, 2008 03:41
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Well like I said I listened to it on regular earphones running off an internal stock soundcard on the work computer with a lot of internal noise
But yeah, I have heard mp3s played at parties and I could definitely tell they were mp3s before I was even told by the dj that they were.
I hate mp3s!!!
EDIT: In 24 bit loop the first 2 are WAVs yeah?
-------------- Dark & Twisted Night Psy --------------
https://www.facebook.com/Ga73k33p3r-322985384842830/ |
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Quantec
Started Topics :
3
Posts :
25
Posted : Aug 20, 2008 03:42
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there is almost another simple way to check it out ;-)
That´s i´ve postet it in the music creation forum.
I thought the people here know how you can hear the difference.
You´re right with the frequenzies...but how can you find it out?
hrhrhr :-D |
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Medea
Aedem/Medea
Started Topics :
127
Posts :
1132
Posted : Aug 20, 2008 09:42
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realtime
Started Topics :
5
Posts :
350
Posted : Aug 20, 2008 11:28
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basically: the more you amplify it, the worse it gets.
mp3 is *try before buy* ... just <3 my DAT walkman 
checking out should be possible with spectrum analyis
... since mp3 is a filter and not a compression.
http://www.myspace.com/realtimeproject |
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Upavas
Upavas
Started Topics :
150
Posts :
3315
Posted : Aug 21, 2008 02:21
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ultraviolence
IsraTrance Junior Member
Started Topics :
30
Posts :
194
Posted : Aug 21, 2008 04:20
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Jaadoo
IsraTrance Junior Member
Started Topics :
12
Posts :
145
Posted : Aug 21, 2008 18:16
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orgytime
IsraTrance Full Member
Started Topics :
120
Posts :
1703
Posted : Aug 21, 2008 18:45
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Quote:
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On 2008-08-21 18:16, Jaadoo wrote:
A bit OT but myspace got the worst mp3 player in the world. It takes your 192 and convert it down to 28.
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hmm thats funny, because nearly every artist is found on myspace^^
www.soundcloud.com/orgytime |
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Quantec
Started Topics :
3
Posts :
25
Posted : Aug 22, 2008 01:01
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Quote:
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On 2008-08-21 04:20, ultraviolence wrote:
So in the 24 bit section the first 2 are WAVs? Which one was the correct answer that I gave by the way in the 16 bit section?
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Only one of the first 2...
Come on....nobody out there??
It´s very easy! (The 16 bit loop... 
With equalizing on the right frequencies you´ll be able to hear it!
I´d just forgotten the order....half an hour listening and i was sure about it again.. |
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Spindrift
Spindrift
Started Topics :
33
Posts :
1560
Posted : Aug 23, 2008 00:12
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IMO this kind of test is really pointless.
First of all doing them online is worthless since you can employ methods suggested here like looking in a spectral analyser.
But most of all since there already have been loads of test carried out using proper test methods that agree on pretty much any LAME encoded mp3 at 192kbps+ is transparent, regardless of how good ears the listener have and what equipment is used to play them back.
It never ceases to amaze me how many people just cannot accept that fact and still convince them self that they happen to be different or that serious tests is wrong because they thought they heard a difference on one track at some party sometime (of course without actually doing a blind AB comparison and without any details about what bitrate and encoder was used). 
Quote:
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On 2008-08-20 03:31, Upavas wrote:
With more amplitude (e.g.a big sound pa) you will hear most definitely a difference between an mp3 and a wav ...
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I only know of one proper blind test done on a top quality PA ( http://www.djmag.com/index.php?op=technology&story=djtech018 ), and that didn't reach that conclusion at all:
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The fact that four out of the five judges thought Vorbis and AAC sounded better than the original WAV at 128Kbps is a curious thing indeed. |
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But before they actually did the test they where also confident that they would be able to spot the compressed tracks:
Quote:
| All our judges have extensive experience working with digital music and compressed audio and they’re all foolishly confident that they’ll be able to tell the difference between the different formats. |
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You have any sources to back up your claim?
Personally I sincerely doubt that it will be easier to tell on a PA then on top-class mastering monitors or headphones and would not hesitate to bet on that infact you get away with more compression before it's noticeable on a PA.
The frequency range, dynamic range and definition is generally lower on a PA than on good hi-fi's, headphones or monitoring systems...and that you listen on high levels does not change that fact. Louder does not in any way equate to more information.
Jadoo:
That's why you should upload 128kbps in the first place. Higher bitrates is not always streaming too well and they might want to keep the bandwidth cots down a bit.
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