7-Zip is a file archiver with a high compression ratio.
I wanna an open source library to extract audio from video file through program code. CDex Open Source Digital Audio CD Extractor. MP3, WMA and other compressed audio formats have been becoming more and more popular in the last couple of years for several reasons. These audio files can be played on mp3 players.
While the extractor publishes the MIME type of the media tracks that it contains, the codecs that support these MIME types need to be present for the file to be fully supported. The actual MIME type string used is strictly an agreement between the extractor and the codec (the string doesn't need to be added to the MediaDefs.h file). Completely free and open source best free audio converter and CD extractor for Microsoft Windows, Linux, macOS. FreeBSD, fre:ac Free Audio Converter supports various popular formats and encoders. With fre:ac, you can easily rip your audio CDs to MP3 or WMA files for use with your hardware player or convert files that do not play with other audio software.
Download 7-Zip 19.00 (2019-02-21) for Windows:
| Link | Type | Windows | Size |
|---|---|---|---|
| Download | .exe | 32-bit x86 | 1.2 MB |
| Download | .exe | 64-bit x64 | 1.4 MB |
Download 7-Zip 20.02 alpha (2020-08-08) for Windows:
| Link | Type | Windows | Size |
|---|---|---|---|
| Download | .exe | 32-bit x86 | 1.2 MB |
| Download | .exe | 64-bit x64 | 1.4 MB |
| Download | .exe | 64-bit ARM64 | 1.5 MB |
License
Open Source Audio File Converter
7-Zip is free software with open source. The most of the code is under the GNU LGPL license. Some parts of the code are under the BSD 3-clause License. Also there is unRAR license restriction for some parts of the code. Read 7-Zip License information.
You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip.
The main features of 7-Zip
- High compression ratio in 7z format with LZMA and LZMA2 compression
- Supported formats:
- Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM
- Unpacking only: AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR and Z.
- For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip
- Strong AES-256 encryption in 7z and ZIP formats
- Self-extracting capability for 7z format
- Integration with Windows Shell
- Powerful File Manager
- Powerful command line version
- Plugin for FAR Manager
- Localizations for 87 languages
7-Zip works in Windows 10 / 8 / 7 / Vista / XP / 2019 / 2016 / 2012 / 2008 / 2003 / 2000.
Open Source Audio File Extractor Pdf
p7zip - the port of the command line version of 7-Zip to Linux/Posix.
On 7-Zip's SourceForge Page you can find a forum, bug reports, and feature request systems.
Compression ratio
We compared 7-Zip with WinRAR 5.20.
FILE SETS: Mozilla Firefox 34.0.5 for Windows and Google Earth 6.2.2.6613 for Windows.
| Archiver | Mozilla Firefox | Google Earth | ||
|---|---|---|---|---|
| 65 files 85 280 391 bytes | 483 files 110 700 519 bytes | |||
| Compressed size | Ratio | Compressed size | Ratio | |
| 7-Zip 9.35 -mx | 39 357 375 | 100% | 15 964 369 | 100% |
| WinRAR 5.20 -m5 -s -ma5 -md128m | 41 789 543 | 106% | 17 035 432 | 107% |
Open Source Audio Samples
Open Source Audio File Extractor Software
Compression ratio results are very dependent upon the data used for the tests. Usually, 7-Zip compresses to 7z format 30-70% better than to zip format. And 7-Zip compresses to zip format 2-10% better than most of other zip compatible programs.