While there is much information surfacing about "dummy heads" at the moment, today's link looks at one provider in a huge market, evaluating automobile sound and sound systems, with much gear.

http://www.head-acoustics.de/Datasheets/

The unit pictured here is using a HP Ipaq 5550 PDA in a dual slot expansion pack with auxiliary battery to control the battery powered A/D converter and microphone signal conditioner. The A/D converter communicates with the PDA via a Compact Flash adapter. A set of high
end binaural microphones made by DPA are used by mounting them on a Jecklin type disk to achieve the binaural imaging.


The Handheld Binaural Recorder can be operated as a handheld recording device, using the pistol grip adapter, or mount the unit on a tripod, using the threaded adapter on the base of the handle. The Handheld Binaural Recorder runs entirely on a 9V batteries in the A/D converter and PDA power, making it a truly portable solution.


http://www.viacoustics.com/recorder.html

Neumann KU100 description:

The KU 100 dummy head is a binaural stereo microphone. It resembles the human head and has two microphone capsules built into the ears. When listening through high-quality headphones it gives the illusion of being right at the scene of the acoustic events.

When using the KU 100 dummy head, the binaural stereo experience moves the listener into the scene of the original performance, in contrast to other space-related recording techniques, where the acoustic event is moved to the listener. The dummy head is also used in many industrial applications as a measuring device, for example in acoustic research.

The listing from UNESCO (United Nations Educational, Scientific, and Cultural Organization endorses both Audacity, an open source sound editor, and Sourceforge, an amazing purveyor of open source software products:

Tell Your Story with soundbytes from:

The Freesound Project is a collaborative database of Creative Commons licensed sounds. Freesound focuses only on sound, not songs. This is what sets freesound apart from other splendid libraries like ccMixter. New to this site? Read the What is Freesound page to learn more!

Use the search function to find binaural tags.

http://freesound.iua.upf.edu/

The DSF-2 Broadcast Microphone System has been specifically developed to simultaneously provide both the surround and stereo soundscape at large scale outside broadcast events such as football stadiums and concert hall venues. Its advantage over alternative methods is that the multichannel audio it generates from a ‘single point’ source is completely phase coherent. This enables the broadcaster to collapse the surround to stereo or mono for TV and radio feeds without loss of information, frequency imbalance or any of the other phase problems associated with spaced microphones or multi capsule ‘dummy head’ arrangements.

http://www.soundfield.com/products/dsf2.php

This lifted quote contains many references already linked so you can start figuring it out.

"At OmniHead, we work with Sony CDR3000 closed headphones, a reference with very limpid reproduction.The realism of the sound environment thus created also requires a high quality definition of the signal. OmniHead uses omnidirectional microphones and a 130V DPA preamplification, an Apogee conversion, a resolution in linear under PCM 24bit/44,1KHzProTools. Concerned by this acoustic fidelity, OmniHead will now be able to work on a 96KHz sampling going through a Yamaha DM2000 console preamplication and conversion."