Skip to main content ↑ ↓

Notice

Please note that most of the software linked on this forum is likely to be safe to use. If you are unsure, feel free to ask in the relevant topics, or send a private message to an administrator or moderator. To help curb the problems of false positives, or in the event that you do find actual malware, you can contribute through the article linked here.
Topic: help removing distortion from mp3s (Read 5589 times) previous topic - next topic
0 Members and 1 Guest are viewing this topic.

help removing distortion from mp3s

hello.  i'm wondering if anybody can please help me with the following problem:

i just downloaded a concert i recently recorded and it was clear right away that i had the levels turned up way too high.  as a result, many of the songs have some degree of distortion (here's a sample: http://www.filedropper.com/sampzo030001-clip11_1).

i'm wondering if it's possible to have the recording cleaned up at all.  i'm not technologically savvy -- this was actually my first ever attempt at bootlegging a show -- but from everything i've read it seems like there's no way to correct this issue.

i can't tell you how grateful i'd be if somebody could help me make this recording even slightly better. 

if more information's needed please let me know.  thank you so much.

tom

help removing distortion from mp3s

Reply #1 –
Just a warning to anyone who downloads this file - it's very very loud (turn down your volume!) -- Track Gain = -18.27dB. Makes a nice solid waveform.

C.

ps. My 2 pennies worth: Nothing you can do to make it sound remotely acceptable.
PC = TAK + LossyWAV  ::  Portable = Opus (130)

help removing distortion from mp3s

Reply #3 –
The term download is often used instead of "transfer":
http://www.wikihow.com/Transfer-Images-fro...a-to-a-Computer

Quote
"Many cameras come with software to download pictures from your camera to your hard drive"

hmmmm ... 

C.
PC = TAK + LossyWAV  ::  Portable = Opus (130)

help removing distortion from mp3s

Reply #4 –
that's what i figured.  thanks anyway.

if there's any chance on god's green earth that somebody wants to take a stab at improving this recording even just a little please let me know.  i'll happily compensate you for your work.

again, i appreciate the replies.

help removing distortion from mp3s

Reply #6 –
I couldn't download your link so have been unable to test the outcome.
I would put the file into Audacity. Use the amplify function to reduce the amplitude (about halfway across the graph)
Then use declip (whiich will take a while).
This has worked a treat with sligghtly distorted recordings, but I guess there's a point where you can't retrieve things

Best wishes
P
 

help removing distortion from mp3s

Reply #7 –
Sadly the link to the file doens't seem to work.
Quote from: Phlogiston on
I couldn't download your link

+1 :-/

Quote from: Phlogiston on
I would put the file into Audacity. Use the amplify function to reduce the amplitude (about halfway across the graph)
Then use declip (whiich will take a while).

I agree Audacity has a great tuneable declipping function.
Depending on the source file there might be a little more you can do: With MP3, for example, its very well possible that some of the clipping is created when the file is being decoded. So you might be able to avoid some, in some more or less special cases all, of the distortion by bringing down the volume before decoding. There's specialised software around to do that, at least for MP3.
Maybe with some decoders something similar is possible with decoding to floating point sample values and attenuating afterwards.