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geroin
Supreme tranceaddict

Registered: Nov 2003
Location:
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Sep-30-2006 21:19
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LKD
Omni-peasant

Registered: Aug 2001
Location: Its June 18th, 2005, I'm at the Skybar
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Sep-30-2006 23:20
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Dr. Z
edm sux

Registered: Sep 2002
Location: Toronto/Waterloo, Canada
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Actually,
I think mp3s are different.
The MPEG layer 3 (MP3) encoding format takes the raw WAVE audio file and compresses it using a Fourier Transformation. A fourier transformation keeps the same amount of data, but uses less space. If you know a little bit about it, it has to do with superimposing many different frequencies to make a single signal. The single signal contains all the data of all the harmonics, but its "smaller" in size.
The same way an MP3 encodes the audio file. I dont know too much about this, but I belive WAV compressed into mp3 of 128-192kbps contain the same amount of data as 1000+ kbps encoded WAV. Increasing encoding to 320kbps from 192kbps in an mp3 increases the amount of data space used for the audio file but it still has the same data (much like digital zoom, no matter how much you zoom, you still contain the same old data). Recording in wave and encoding in 192 mp3, these files contain the 'true' recorded sound. Much like how a BMP picture contains all the true colours and pixels of an image, without compression. The actual 'quality' of sound comes in the sample rate, 44kHz standard. The faster you sample, the 'truer' sound you can record from whatever instrument is making the sound. The higher the sampling, the more 'quality' data you will have to store in whatever data space you assign it. So if you record with say 92KHz sample rate, on a 320 kbps mp3 encoded file, this will sound better in quality, than copying a file from an audio cd and encoding it to 320kbps. (because CDs are usually burned from a 128kbps recording, 44kHz)
etc
Last edited by Dr. Z on Oct-01-2006 at 15:28
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Oct-01-2006 05:51
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Orko
Digital Hippie

Registered: Nov 2002
Location: Toronto, Ontario, Canada
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Oct-01-2006 22:18
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