ArcConvert 

This convertor can convert the following archives:7-ZIP/ LZH/ CAB/ ZIP/ ARJ/ ACE/ RAR/ TAR/ TGZ/ GZ/ Z/ BZ2/ YZ1/ YZ2/ GCA/ BEL/ RPM/ DEB/ BH/ Noa32/ HKI/ PAQAR/ SQX/ HA/ ZOO/ UHARC/ LFB/ ZLIB/ UCL/ IMP/ RS/ SPL/ APK/ Arc/ DZ/ MSI to many archive
convert 7-zip lzh cab zip arj ace rar tar tgz gz z bz2 yz1

ZipZag 

Handles archives of most formats: Zip, 7Zip, Ace, Arc, Arj, Bin, Bz2, Bzip2, Cab, Cpio, Deb, Gca, Gzip, Hqx, Ice, Jar, Lha, Lzh, Ntx, Pak, Pk3, Rar, Rpm, Sqx, Tar, Taz, Tbz2, Tgz, Wad, War, Wba, Wmz, Wsz, Dxtheme, Iptheme, Logonxp, Obpack, and more.
zip 7z 7zip arj ace bz2 bzip2 cab cbr cbz deb gca gz gzip

DSSF3 Basic 

The free version of the advanced sound measurement software DSSF3 is now available. It consists of the signal generator, sound recorder and player, and the peak level meter.
sound noise measurement oscilloscope realtime acf iacc iacf spectrum fft audio signal generator