[vulcanzero1]

Good morning all (evening in U.K.)

Just joined to try to learn a bit about measuring the in-room response of my system. Been using a CD test disc (Sound Check 2 by the recording engineer Alan Parsons) and measuring SPL's at individual frequencies with a Tandy 2055 meter. Works O.K. but wanted to try something more sophistacated like the TrueRTA software (am I allowed to say that here?) with a Behringer ECM8000 microphone and MC100 supply and maybe a Soundblaster Audigy 2 ZS notebook PCMCIA card, all of which I have still to buy.

If anyone is interested, my equipment is purely hi-fi and not theatre (no room and no money + wife does not approve):-

2 x KEF 105/3
REL Stentor sub
Quad 66 pre-amp and 66 FM tuner
Quad 606/11 power amp
Meridian G08 CD player
Technics SL120 turntable + SME 3009 series 11 improved arm
Revox B710 Mk11 cassette deck (sorry, I'm nearly 58 and still into the older stuff)
Stax Omega headphones + SRM-T1S supply

Tastes in music are fairly wide-ranging - Genesis (saw the reunion concert at Twickenham a couple of months ago) Pink Floyd, U2, Beatles, lots of '60's stuff like the Hollies, Searchers, Shadows, etc.

One question if I may regarding using RTA software with a laptop (Acer Ferrari 4000). Am I right that the sound-card sends the signal generated by the software from the output of the card to the system, ie. Quad pre-amp and AT THE SAME TIME, that the output from the system loudspeakers is received by the measuring microphone and fed back into the input of the sound-card and immediately shown as a graph response by the software, hence Real Time Analysis? The bit I'm unsure about is simultaneous input and output. Will the sound-card I mentioned above do this or do I have to buy something more specialised or suitable? I always thought that computer soundcards could only send a signal in one direction at a time.

For anyone who is interested, I am also the photographer for the Vulcan bomber restoration project in the U.K. (first flight hopefully next month) and was the RAF Vulcan Bomber Display Team photographer.

thanks
vulcanzero1