Professional 16kHz cut???

  • Thread starter Thread starter Nick The Man
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Nick The Man

Nick The Man

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why is it that when i load up professionally recorded tracks in sound forge and take a look at the spectrum analysis most of them have a cut around 16kHz or so, does this add something or is it just for some kind of CD purpose or something?
 
i almost forgot, i have a picture too:
 

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What are the source files? .mp3 .wav etc..
If .wav, what is the sampling frequency? If .mp3, don't expect full bandwidth. That's part of the reason .mp3's suck.
 
tarnationsauce2 said:
What are the source files? .mp3 .wav etc..
If .wav, what is the sampling frequency? If .mp3, don't expect full bandwidth. That's part of the reason .mp3's suck.
Click to expand...

they are actually .wmv files.. i ripped them driectly off a CD using windows media player. but the thing is, some of my friends went to a big studio around here and their tracks have the same thing goin on. but i ripped it the same way so maybe windows media is what is making the cut??

PS nice avatar. ;) mine is the Event studio presicion 8s what are yours?
 
Hmm, isn´t wmv loss-full format like mp3? Then it has limited band, because why should they encode the redundant 16-22khz, when "standard" earplugs end at 12khz?
 
Nick The Man said:
why is it that when i load up professionally recorded tracks in sound forge and take a look at the spectrum analysis most of them have a cut around 16kHz or so, does this add something or is it just for some kind of CD purpose or something?
Click to expand...
Maybe your analysis program only goes up that far and stops. ...Or even the program you used to rip them.
 
Nick The Man said:
they are actually .wmv files.. i ripped them driectly off a CD using windows media player. but the thing is, some of my friends went to a big studio around here and their tracks have the same thing goin on. but i ripped it the same way so maybe windows media is what is making the cut??

PS nice avatar. ;) mine is the Event studio presicion 8s what are yours?
Click to expand...



How do you like your new monitors?
 
Nick The Man said:
they are actually .wmv files.. i ripped them driectly off a CD using windows media player.
Click to expand...


there are 2 types of .wmv's, one lossless and the other lossy. try re-importing as 44.1khz/24bit .wav and examine it then, i think your frequency plot will look quite different!
 
Nick The Man said:
why is it that when i load up professionally recorded tracks in sound forge and take a look at the spectrum analysis most of them have a cut around 16kHz or so, does this add something or is it just for some kind of CD purpose or something?
Click to expand...

Well many people can't really hear that much higher anyways. And also, in music, most of material occupy the mid's to highs. Another reason would be that producers want the listener to 'feel' the music & hit you in your face, so there's more lows & mid's. Also to control ear fatigue.
 
yeah it was defintly the ripping program, the spectrum reads all my recorded tracks full bandwith. I remember seeing .wmv (lossless) and .wav (lossless) when i ripped but i didnt bother cause it was just a bigger file. But like you guys said you can't really hear that up there anyways so it makes no difference. Thanks again for all the help guys.
 
HangDawg said:
How do you like your new monitors?
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dude i only wish i had them already, im still saving up for them. Every time i go to guitar center i listen to them and make love with the bass hole... woops. But yeah i'm still saving up, i justtook a picture off of the website for the avatar, i cant wait till i have them
 
I'm listening throug Event TR8. And I'm quite happy about it :cool:
 
I am not aware of anyone using a brickwalled cut like that on the 16khz and up area. It is true that many people do not translate audio in those higher regions, but that does not mean that the presence of those frequencies will not affect what the listener perceives. Harmonics play a large role in how our brains translate things.
 
Common issue with compressed media. As previously mentioned, most mp3s and wmvs are compressed and part of that algorithm's function is to skip the highest frequencies (as part of its filesize-saving shortcut).

http://en.wikipedia.org/wiki/MP3

No scale factor band for frequencies above 15.5/15.8 kHz
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Yes, The Mp3 encoding process falls into the catagory of a" perceptual " lossy DATA compression scheme.
The spectrum is broken into subsets and each band is alloted a "quota " of how much info it will be allowed. The 16k and above is usually not alloted much space in total file!

Humans have a built in roll offt here any way ( depending on the spl )
Most people have to crank it up in that area , and what you hear can be disconcerning any way.
 
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