Question: Is it possible to use a Soundscape Mixtreme soundcard in one of the newer PCI slots that deliver 3.3 volts?
Answer: Yes, in fact answers to many questions regarding PCI slot compatibility can be found here:
http://www.pcisig.com/specifications
What are the advantages of using a PCX[np] card..?
Question: What are the advantages of using a Digigram PCX card [with np or pcx driver] instead of a VX card or a Multimedia sound card?
Answer: The PCX cards have an onboard processor for the digital signal (DSP chip) that relieves the CPU from having to process en/decoding of MPEG audiomaterial.
The Digas modules implement this feature as follows: Multitrack/EasyTrack NP use the DSP only when recording in Recordpage/Reporterbox.
MultiRec with NP-driver has the same logic as MTE.
Edit-Station NP implements the DSP in playback.
Rec_np.ocx uses the DSP in recording and playback.
These applications only make use of the DSP when processing MPEG material, because Linear does not require encoding or decoding.