Speex is specially designed for compressing voice at low bit-rates. It is an audio codec designed especially for voice signals and providing good narrowband and wideband quality. It aims to be complementary to the Ogg Vorbis codec.
FreewareFiles tested Speex 1.1.10 Unstable on 2005-09-26 using leading
antivirus scanners and found it 100% Clean. It does not contain any form
of malware, spyware, viruses, trojans, etc. We will re-test each updated
version and remove the award as well as the program if found infected.