Compress MP3 and MP3Pro by 20% losslessly?
Reply #10 – 2006-04-29 02:58:23
I run a test on 10 files encoded by LAME 3.97b2 -V 0 --vbr-new After decompression, MD5 hashes match.Test system: Win XP Pro SP2, AMD Athlon 64 3000+ Program version: SoundSlimer 1.04.001 Total time: 1:08:24 Compression time: 0:09:07 [ 7,5 ] Decompression time: 0:08:21 [ 8,2 ] Original size: 122.742.332 bytes Encoded size: 107.246.467 bytes [ 87% ] FILES Kind hearted woman blues (Take 1) (R. Johnson) [ 84% ] La vie antérieure (H. Duparc - B. Kruysen & N. Lee) [ 86% ] Prélude No. 17 Ab - Allegretto (F. Chopin - M. Pollini) [ 86% ] Sister Ray (The Velvet Underground) [ 86% ] Tom the model (Beth Gibbons & Rustin Man) [ 86% ] Vénus callipyge (G. Brassens) [ 87% ] Allegro energico... (G. Mahler, Sym. No. 6 - C. Abbado) [ 88% ] Milk it (Nirvana) [ 88% ] Dancing queen (ABBA) [ 89% ] Squirrel song (Shellac) [ 89% ] The program is 602kB and installs cleanly (monitored with Total Uninstall 2.35). Here is a quote from the latest issue of Squeeze Chart (Edition 2006 04 02) by Stephan Busch. (Download here: http://www.maximumcompression.com/benchmarks/benchmarks.php) Sound Slimmer 1.04.001 (06.07.2005) - a very very cool lossless! recompressor for MP3 and mp3PRO audio files, capable of reducing every MP3 song from 12 % to 46% without loosing quality; without cheating; without deleting; reaching new world record on MP3 testset, and all MP3 files I compressed with this demo available at www.soundslimmer.com could be easily extracted bit by bit; even checksums matched. Despite that, Sound Slimmer handled MP3 files created with all known encoders on the market, accepted mono, stereo and joint stereo formats at all imaginable CBR bitrates and VBR encoded titles. MP3's containing newer music are usually reduced by 12%, music from the 80's by 20% and most classic or silent relaxation titles up to 36 to 46%.