Make MP3 Files Smaller

[starcraft]

Is there any free software out there to do that without affecting the quality of the song?

[whipermr5]

There is no way to make the mp3 file smaller while maintaining quality. However, you can try encoding the mp3 into other formats such as m4a, which has better compression. For a free converter to convert to m4a and many other formats, try SUPER. http://www.erightsoft.com/SUPER.html
Note: If you have problems downloading from that page, try downloading from this page: http://www.majorgeeks.com/Super_d5117.html

[kallatis]

Is there any free software out there to do that without affecting the quality of the song?

http://mediacoder.sourceforge.net/

[S-Priest]

There's no direct way to reduce the size of an MP3 file (it's already compressed as much as possible, according to its algorithms, anyway).

However, it could be decoded and re-encoded at a lower bitrate (with a loss of quality).

Another, simpler way is to resample the source wave at a lower sampling rate.

CD Audio is 44 KHz/16-bit stereo; most material comes at that sampling rate.

Resampling to 22 KHz would yield a file twice as small, which could then be encoded at lower bitrates (64-96 kbps, even 32 kbps, which still isn't so bad for a ringtone).

Most phones' speakers are very limited anyway, the K310 here only plays up to 16 KHz sampling rate.

Many audio players can write an output file to disk while resampling it: Winamp, Foobar2000, XMPlay, etc. On the Mac side, ITunes could convert a file to .wav, which could then be edited by Audacity or somesuch.

Some free editors are Audacity (cross-platform), Goldwave (http://www.goldwave.com) - though that one's shareware, lots of free ones for Linux (obviously), there might be tryout versions of the larger commercial editors.

Out of MP3 encoders one of the best is free, LAME, and it is cross-platform as well (actually Audacity worked with it, suggesting a download of the library). LAME can also decode MP3 files to waves.

[ladykiller]

u can download Auvisoft Audio Converter in auvisoft.com
i know neweset version is 1.8 and if u wanna key,u can PM me via Y!M:wait4redca
Best Settings in 64MHz,128Bit stereo ...output mp3 <2MB file size

[macril]

there is a software called dbpoweramp which can help you in
1.compression
2.increasing and decrasing kbps
3.changing from sterio -->mono--> dual chanel and vice versa
4.mp3 encoding

[ahmed5]

Use ImTOO, its the best

[hELLISh]

One of the best is Cool Edit Pro software.
Its not free, but really cool.
Support many formats and editing.
But it impossible compress MP3 without affecting the quality of the song.

[wisky_2004]

just use nero wave editor :) and select encder mp3 pro and for bitrate select constant bitrate and 64bits/32KHz it reduces a mp3 of 3Mb to 1Mb and the quality is good... also you can use the equalizer or add some effets like raise volume a lil reverb... it sounds good on the phone

[xechan]

i use mp3 pro , smaller in size and good quality