How to shrink (denoise) this short *.mp3 file?

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mattad
Posts: 38
Joined: Wed Jun 28, 2006 10:24 am

How to shrink (denoise) this short *.mp3 file?

Post by mattad »

I have here a strange problem:

I have a short mp3 audio recording (from a pub) of music with only little people speaking in background.
Although it is only 26 (!) seconds long and has only a bitrate of 128kbits it takes up to 8570 KB file size.

See here:

https://www97.zippyshare.com/v/Nb7A5SkS/file.html

When I drag it onto GoldWave and re-save it the file is not shrinking.

When I look at other music files then I have lots of other songs with a length of 4 minutes in 192 kbps and they require only ~6 MB.

So why is this MP3 song so comparable big?

How can I shrink the file size (with GoldWave) with a minimum of quality loss?

Maybe I have to de-noise the recoding from artifacts.
How do I do this with GoldWave?

DougDbug
Posts: 2070
Joined: Wed Feb 16, 2005 3:33 pm
Location: Silicon Valley

Re: How to shrink (denoise) this short *.mp3 file?

Post by DougDbug »

~8MB of imbedded artwork. ;)
Although it is only 26 (!) seconds long and has only a bitrate of 128kbits
As you may know there are 8 bits in a byte so 128 kilobits per second = 16 kilobytes per second. 16 kilobytes per second x 26 seconds = 416kB.
Maybe I have to de-noise the recoding from artifacts.
No. As above, the file size is related to bitrate & playing time (plus some space for headers and other embedded information.)

...If you use VBR (variable bitrate) a "simpler" less-noisy file will result in a smaller file (lower bitrate) for a given quality setting.

----------------------------------------------------------------------------------------
I checked your file with MediaInfo (confirmed 128kbps) and then with MP3Tag (which showed me the size of the image).

If you wish, MP3Tag can remove the image or remove& extract it, reduce the resolution with your photo/image editor and replace it with a smaller one.

mattad
Posts: 38
Joined: Wed Jun 28, 2006 10:24 am

Re: How to shrink (denoise) this short *.mp3 file?

Post by mattad »

DougDbug wrote:~8MB of imbedded artwork. ;)
Very interesting.

Thank you

GoldWave Inc.
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Location: St. John's, NL
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Re: How to shrink (denoise) this short *.mp3 file?

Post by GoldWave Inc. »

You can use File | Information in GoldWave to remove the image as well.

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