Are .mp3's compressed like an .RAR archive, for example?
Whenever I open an mp3 file in Adobe Audition, it shows me that the file size is around 100mb+ even though the raw file in my directory is like 8mb. This makes me think Audition "uncompressed" the mp3.
I'm guessing the mp3 is in a .wav format when imported into Audition. Does this mean I can export an 192kbps mp3 into a 320kbps mp3 using this process?
Probably sounds stupid, but I'd like to be enlightened.
I don't think you can convert a mp3 to a wav and set it to a better quality.
But im not sure though , maybe someone can enlighten us
Music is my passion , not my business.
in theory,everything done to a file(no matter the type) can be undone,but normally,if you uncompress an .mp3,it sounds like complete SHIT. im not really an expert,but im trying to enlighten.
Sig Links. Links in Sig. I dunno.
"making a piece of music is kinda like raising a kid (only a lot easier, lol)" - Skye [Winter] 11:28 PM <- Skype? hell yeah.
When you compress a piece of audio data to mp3, it loses quality. Forever. Sure you can re-encode it upward to a wav or a higher quality mp3, but the data is already gone.
In other words, it doesn't matter what you do with the mp3, you're not getting the lost frequency range back.
...or am I entirely misinterpreting your query?
At 6/11/11 12:22 AM, Nav wrote: When you compress a piece of audio data to mp3, it loses quality. Forever. Sure you can re-encode it upward to a wav or a higher quality mp3, but the data is already gone.
In other words, it doesn't matter what you do with the mp3, you're not getting the lost frequency range back.
...or am I entirely misinterpreting your query?
Yea, I think you got it right.
Expected what you said. Still, kinda disappointed about it though.
It's not "uncompressed", it's just re-rendered into a new audio file, and all the imperfections of any prior mp3 encoding persists. In fact, if you save an mp3 as a new mp3, the imperfections will inevitably accumulate.
At least this signature is not obsolete.
There are two kinds of compression, lossless compression and lossy compression. The reason the mp3 is 8 megs is because data has been discarded. That data cannot be recovered.
An uncompressed MP3 is simply turned back into a wav with all of its missing data still missing, simply in a raw format the sound card can understand. Same concept as a JPG.
FLAC format is lossless, like PNG.
At 6/11/11 12:22 AM, Nav wrote: When you compress a piece of audio data to mp3, it loses quality. Forever. Sure you can re-encode it upward to a wav or a higher quality mp3, but the data is already gone.
In other words, it doesn't matter what you do with the mp3, you're not getting the lost frequency range back.
Nav's right, once you compress it, you can change the format back, but the information is gone forever. Basically its like me scanning The Mona Lisa, then printing the scan onto canvas. Im not going to get all the textures on my print now, am I, but the image will still be there.
You can't uncompress MP3's, no. The information has already been discarded. We'd a lovely chat about all this recently in the Audio File Format thread if you're curious, I think I went into what they do.
If not, ask away. I might as well use the 3 months I spent studying MPEG layers for something.
At 6/11/11 02:16 PM, Chris-V2 wrote: You can't uncompress MP3's, no. The information has already been discarded. We'd a lovely chat about all this recently in the Audio File Format thread if you're curious, I think I went into what they do.
If not, ask away. I might as well use the 3 months I spent studying MPEG layers for something.
Actually, technically yes you can uncompress mp3's. Saying you cant implys you cant change them out of mp3. But you can, because you can convert them to a higher file, eg. Wav. However the information is lost from the original file/export as mp3 doesn't acknowledge information that uncompressed does. Understand that compression is merely use of a coder and decoder. Mp3 is a format of codec, like jpeg.
Thinking that you could get an mp3 file back to its lossless stage would be like thinking you could make shit turn back to its food stage.
At 6/11/11 03:49 PM, PeterSatera wrote:Actually, technically yes you can uncompress mp3's. Saying you cant implys you cant change them out of mp3. But you can, because you can convert them to a higher file, eg. Wav. However the information is lost from the original file/export as mp3 doesn't acknowledge information that uncompressed does. Understand that compression is merely use of a coder and decoder. Mp3 is a format of codec, like jpeg.
You can reformat them, yes. You can't uncompress them. Uncompressing them implies that the old data will be restored, which it wont. While the coder does the compression, they're 2 seperate things and should be considered asuch. Not all encoders compress and not all compression occurs during encoding.
But, please, feel free to spend your time telling me things I already know. I don't spent too much time on the internet and I probably wont even get very arsey about it!
At 6/11/11 04:21 PM, Chris-V2 wrote: You can reformat them, yes. You can't uncompress them. Uncompressing them implies that the old data will be restored, which it wont. While the coder does the compression, they're 2 seperate things and should be considered asuch. Not all encoders compress and not all compression occurs during encoding.
But, please, feel free to spend your time telling me things I already know. I don't spent too much time on the internet and I probably wont even get very arsey about it!
No shit sherlock. Im not talking about regaining data, im talking about translating the data back to wav. But heck, what do I know, since I deal with compression every day in my work.
At 6/11/11 06:00 PM, PeterSatera wrote: No shit sherlock. Im not talking about regaining data, im talking about translating the data back to wav.
Yeah I think everybody understands that. Still, you did say you can "uncompress" it. Which you can't. Converting between formats is not necessarily the same as compression/decompression.
But heck, what do I know, since I deal with compression every day in my work.
lol who doesn't
At 6/11/11 06:00 PM, PeterSatera wrote:
No shit sherlock. Im not talking about regaining data, im talking about translating the data back to wav. But heck, what do I know, since I deal with compression every day in my work.
lolwut?
Can we end the pissing contest here please? We're all audio people here.
But I must add that I HAVE VERY IMPORTANT COMPRESSION CLIENTS!!! NAMES YOU'D RECOGNIZE IN THE COMPRESSION WORLD!!
At 6/11/11 08:51 PM, NickPerrin wrote: But I must add that I HAVE VERY IMPORTANT COMPRESSION CLIENTS!!! NAMES YOU'D RECOGNIZE IN THE COMPRESSION WORLD!!
I heard you're the guy who compresses Phil Spector's productions to 128kbps mp3s o.o
AWWW YEAH ARGUMENTS OVER SEMANTICS
(Hey guys, uncompressing isn't a word)
You can decompress an mp3 file. Think of it this way. I have a nice clean sheet of computer paper. I decide to compress it by squishing it up into a ball. I can also uncompress it by unfolding it back into a complete sheet. However there will now be lines that weren't there before thanks to my folding it up. That's how mp3 compression works. Yes, you can uncompress it. But you can never have the same sheet of paper back.
Lossless compression is like putting something into a box and taking it out again. Still the same! :D
Also just because you "work with compression every day" doesn't mean your terminology is the same. Of course you understand how it works, but sometimes stupid English words confuse and anger us.
At 6/11/11 08:51 PM, NickPerrin wrote:I HAVE VERY IMPORTANT COMPRESSION CLIENTS!!! NAMES YOU'D RECOGNIZE IN THE COMPRESSION WORLD!!
I thought I recognized you from somewhere!
At 6/11/11 09:57 PM, Nav wrote: AWWW YEAH ARGUMENTS OVER SEMANTICS
(Hey guys, uncompressing isn't a word)
You can decompress an mp3 file. Think of it this way. I have a nice clean sheet of computer paper. I decide to compress it by squishing it up into a ball. I can also uncompress it by unfolding it back into a complete sheet. However there will now be lines that weren't there before thanks to my folding it up. That's how mp3 compression works. Yes, you can uncompress it. But you can never have the same sheet of paper back.
You can, however, dissolve the .mp3 in water, pour it into a mold, let it dry and after a while you'll have a slightly smaller, thicker, rougher and more yellow-tinted new .wav?
Ah the old omgthatsitimquotingyouinmysigtomakeyoul0 0kstoopid trick. Maybe you'll hit ChrisV3 someday?
There's too many metaphors in here to actually get a grip of what people are saying. lol Saying you can't decompress/uncompress is like saying you can't take a cheese and ham sandwich apart.
At 6/12/11 07:37 AM, PeterSatera wrote: Saying you can't decompress/uncompress is like saying you can't take a cheese and ham sandwich apart.
No
At 6/12/11 07:37 AM, PeterSatera wrote:There's too many metaphors in here to actually get a grip of what people are saying. lol Saying you can't decompress/uncompress is like saying you can't take a cheese and ham sandwich apart.
First of all, that's an analogy.
Second of all, you're saying mp3 compression can be recovered. It can't. You can strip the old header and add a new one with an encoder for WAV or FLAV or Ogg Vorbis but that's not uncompressing the audio, the compression has already happened. What you're doing is reformating the audio, there is no restoration of information.
Maybe we should scribble SMART off the side of that compressor...
At 6/12/11 07:43 AM, SBB wrote: No
It must be. How else do guys tear apart tracks into seperate elements seamlessly? Im not meaning crappy accapellas, i mean like full blown tracks, split into, Orchestra - drums - and synths.
At 6/12/11 07:55 AM, PeterSatera wrote:At 6/12/11 07:43 AM, SBB wrote: NoIt must be. How else do guys tear apart tracks into seperate elements seamlessly? Im not meaning crappy accapellas, i mean like full blown tracks, split into, Orchestra - drums - and synths.
you can't do that to an mp3
See this is what I mean, you must be able to. As I've got some tracks seperated into elements.
Are you just saying this so you can dismiss your "I deal with compression every day in my work" comment as trolling?
It's not trolling. I do deal with it everyday. It's just part of the job. It's visual translation, such as 3Dobjects but I've had to do some stuff in audio before. But I work with converting .dxf to .lwo, to .obj to .ma and .mb and make sure it can come back again.
Trolling is too timeconsuming.
I thought you were too smart to be such an idiot on other forums, Pete. Especially ones where the regulars actually know what they're talking about.
How about this scenario: You open a hi-res BMP file in photoshop, then save it as a low-res JPEG at a quality level of 20. Now, by the logic you're applying to mp3 format, you should be able to take that same JPEG and make it look exactly like the original PNG. You can't, and "decompressing" an mp3 is just the same because you're taking raw data (bmp/wav) and using a lossy compression algorithm (jpg/mp3 to lower the file size. Lossy means you lose the data. Forever. You can change that jpg back into a bitmap, but it will still look the same.
Are we still confused, or was that too "metaphorical" for you?
p.s. i am gay
At 6/12/11 09:50 AM, midimachine wrote: Now, by the logic you're applying to mp3 format, you should be able to take that same JPEG and make it look exactly like the original PNG.
meant to write BMP here, lol.
p.s. i am gay
