PCM = pulse code modulation, which would take awhile to explain, but suffice to say in this context it refers to 2-channel uncompressed audio like you'd find on a regular CD.

CENTER VALLEY , Pa., January 3, 2008 — Olympus, the market leader for portable digital voice recorders and professional dictation devices, now leverages its audio expertise with the LS-10 Linear PCM ...

At the AES conference in New York last week, Sony introduced the PCM-D1 portable audio recorder. The PCM-D1, whose body is made from pressed titanium, features 96K-24 bit recording capability, 4GB ...

The ASI5111 is a PCM-only audio adapter for professional broadcast use from AudioScience that retails for $545. It is scheduled to ship Nov. 1. It offers two stereo record streams from either a ...

Sony is updating its line of professional-quality portable audio recorders with two new models, the $230 PCM-A10, which is basically a souped-up voice recorder that you could use for recording ...