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DJ ALADDIN





Posts: 6


Post Posted - Wed Jan 08, 2003 1:48 pm 

Hi,

I was wondering ..... i downloaded some mp3 songs and the quality of the songs are distroting ..... is there any way i can make it sound non distorting or any way to make it sound clean...... thanks

Aladdin


www.tyme-productions.com
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Graeme

Member
Location: Spain


Posts: 4663


Post Posted - Wed Jan 08, 2003 1:55 pm 

Simply - no!

It is not possible to 'repair' distortion. At best, you might be able to disguise it, but it is a thankless task and it would be easier to find another source for the files.

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Graeme

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DJ ALADDIN





Posts: 6


Post Posted - Wed Jan 08, 2003 1:57 pm 

So basically i have to find the cleaner quality of the file then ..... :S


Aladdin

www.tyme-prodcutions.com
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Mel Davis





Posts: 204


Post Posted - Wed Jan 08, 2003 3:03 pm 

With mp3s, the most common cause of this problem is excessive compression, especially to bitrates below 128 Kpbs. 192 is better. Mp3s available on the web are often compressed to 32 Kbps to save bandwidth. That will always sound lousy, and no, neither Cool Edit nor any other software can fix poor sound due to excessive compression. Once the information is sheared away from the file, it's gone. Look for mp3s saved at higher bitrates, at least 128.
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alofoz


Location: Australia


Posts: 434


Post Posted - Thu Jan 09, 2003 3:10 am 

Have a look at MP3 Gain and read the background information: http://www.geocities.com/mp3gain/.

It's sometimes possible to reduce the level of an mp3 file and reduce the playback distortion.

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Alan
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SteveG


Location: United Kingdom


Posts: 6695


Post Posted - Thu Jan 09, 2003 3:19 am 

Quote:
is there any way i can make it sound non distorting or any way to make it sound clean......

Yeah. Buy the CD...

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Graeme

Member
Location: Spain


Posts: 4663


Post Posted - Thu Jan 09, 2003 11:18 am 

alofoz wrote:
Have a look at MP3 Gain and read the background information: http://www.geocities.com/mp3gain/.


Not being an MP3 user, I haven't really been following the MP3 Gain thing very closely, but it is my (admittedly limited) understanding that the files first have to be encoded with the information required - and there is nothing to say these files are.

Furthermore, as I understand it, the whole object of the exercise is to provide a constant average replay level for MP3's - this, in itself, has absolutely nothing to do with distortion.

alofoz wrote:
It's sometimes possible to reduce the level of an mp3 file and reduce the playback distortion.


Only if you are pushing your own system with too high a level. If the distortion exists in the file, then that's the end of the story. There is no way to repair it. This is true of any audio format (including analogue) - distortion repair waits for another technology.

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Graeme

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alofoz


Location: Australia


Posts: 434


Post Posted - Thu Jan 09, 2003 3:53 pm 

Quote:
Not being an MP3 user, I haven't really been following the MP3 Gain thing very closely,
-Graeme


Fair enough, I've followed it a bit and RTFM:blush:. There's a parameter within an mp3 file that controls the playback level. Sometimes a downloaded mp3 file has this parameter set too high, the data itself being undistorted. I've experienced this occasionally with files from mp3.com. Such files will show as clipped when loaded into Cool Edit, But after using MP3 Gain to reduce the level there is no clipping. Why anyone would set the level this high beats me but it happens.

Aladdin gave no indication as to the cause of the distortion so we should consider this as a possiblity, n'est ce pas?

Quote:
Furthermore, as I understand it, the whole object of the exercise is to provide a constant average replay level for MP3's - this, in itself, has absolutely nothing to do with distortion.


Except for... (see above).

Quote:
Only if you are pushing your own system with too high a level. If the distortion exists in the file, then that's the end of the story. There is no way to repair it. This is true of any audio format (including analogue) - distortion repair waits for another technology.


I've understood this since I first made a valve amplifier in the late '50s. I've forgotten a lot of things since then; this is not amongst them.Evil

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Alan
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