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On 9/1/06, Hemmann, Volker Armin <volker.armin.hemmann@××××××××××××.de> wrote: |
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> And recoding: mp3 is a lossy format. If you turn them into wavs you have not |
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> only wavs based on reduced information, you remove the stuff that makes mp3 |
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> sound 'better' than they are. If you encode them again, you are removing more |
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> information. |
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Minor technical correction: wav formats are not even compressed, much |
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less lossy. So converting from an mp3 to a wav (which is really just |
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PCM audio with a header attached) is very much like playing the mp3 |
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through your speakers. There should be no difference between playing |
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a wav generated from the mp3 and playing the mp3 itself. |
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But the point of what you said is correct...the wav file will not have |
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the same quality as the original recording that the mp3 was generated |
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from, and an mp3 generated from it will have even lower quality. |
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Although I suspect that most people couldn't tell the difference |
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between a 1st gen and 3rd gen mp3 if the bitrate is high enough. When |
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I download stuff from iTunes, record it to CD, and then rip to ogg, I |
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certainly can't tell any difference between the 3 versions. |
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To answer the OP, I've used sox in the past to convert between |
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formats. It can also apply lots of other transformations (noise |
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filters, volume normalization, tempo adjustments, etc) to the files. |
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|
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-Richard |
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-- |
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