Dream is a popular GPL licensed open source software implementation of a Digital Radio Mondiale (DRM) receiver that runs on FreeBSD, Linux, Apple Mac OS X and Microsoft Windows.
Most inexpensive shortwave receivers sold commercially can be used to decode DRM broadcasts, by simply connecting them to a computer via the sound card (often though the use of an external 455 kHz to 12 kHz IF adapter) and running the Dream software on the host computer. This can be a more attractive option for people wishing to listen to DRM broadcasts than purchasing an expensive stand-alone DRM receiver, which may cost $100 or more.
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