>   dpippo@jupiter.scs.Ryerson.CA (Dennis Pippo) writes:
>  Matthew E. Meiser (meiserme@rosevc.rose-hulman.edu) wrote:
>  : Does anyone know if there is any inexpensive software available for a PC which 
>  : would allow you to do RTA measurements using a microphone connected to a sound 
>  : card?
>  
>  : Thanks
>  
>  : ******************************************************************
>  : *			Matthew Meiser				 *
>  : *		Meiserme@Rosevc.Rose-Hulman.edu			 *
>  : *		 Electrical Engineering Junior			 *
>  : *	      Rose-Hulman Institute of Technology		 *
>  : ******************************************************************
>  
>  
>    

There are two windows-based systems I know of:

(1)  Audio Spectrum Analyzer  ($39.99)

(2)  Specta plus ($179.99)

both are available from MCM Electronics 1-800-543-4330

I've heard mixed reviews of these systems and have not actually purchased one because I have access to an Alpine 4780 
which I use to balance my systems.  If you get one of these please drop me a line and let me know how it worked.  I also saw a 
system in a magazine consisting of a high-speed sound card which functions as an RTA with inputs for 4 balanced mics.  It 
costs approx $1800.  For that kinda dough, I think it would be better to get a dedicated RTA.  Good Luck!!  

Harry Brandt


From  hbrandt@interserv.com

or call me at 410-664-0600