Encode and Decode, Lame MP3 back to WAV

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savana
Posts: 2
Joined: Sun Jan 29, 2006 5:40 pm

Encode and Decode, Lame MP3 back to WAV

Post by savana »

If I convert a Lame mp3 file back to a WAV file. Is it bit accurate to the original WAV file it originally came from ?
Bex
Posts: 6316
Joined: Fri May 21, 2004 5:44 am
Location: Sweden

Post by Bex »

Bit accurate?

If you convert from a lossy format to any other fomat you'll loose in quality. So i guess the answer to your question is no.

/Bex
savana
Posts: 2
Joined: Sun Jan 29, 2006 5:40 pm

Post by savana »

Thanks, I understand that any MP3 format is lossy, but why could'nt the program that compressed the audio reconstruct it to its original state as well.
Teknojnky
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Joined: Tue Sep 06, 2005 11:01 pm
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Post by Teknojnky »

Because in the process of compressing it, some data is 'lost' hence the 'lossy' term. Our ears can only 'hear' so much, which is what the encoding algorythms try to figure out which bits to keep and which to discard.

The best any de/re-coder could so is an approximation of the orginal.

If you want exact bit for bit you need to use only 'lossless' formats.
Josti
Posts: 31
Joined: Sat Jan 07, 2006 12:47 pm

Post by Josti »

What's gone is gone, you can't expect your barber to reconstruct your hair "hair accurate" when cut, he can only guess what your haircut was like :)
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