I found this the other day when I was looking for some test tones. You can either download the wav/mp3 files or the program at the bottom of the page (Burninwave Generator): http://www.burninwave.com/
You can use these files with the jDFT-2 free RTA software: http://www.e.kth.se/~johk/jdft/index.html
Hope this is useful to someone

Since JGH began Stereophile, words having little to do with audio components and measurements have become the common subjective language of audiophiles and reviewers when trying to describe the sound qualities perceived from a component or system. Some words have become favorites of particular writers, such as ST and his "palpable presence", while others have come and gone in usage as more words have been needed to describe fewer problem areas and a greater ability to replicate the live experience in our homes. Or, at least, we hope that's the result.

I offer my sympathies, Toussaint. That anyone should believe Art Dudley owes an explanation for so-called "conflicting" appraisals of two pieces of equipment reviewed over a period of years is pathetic. That anyone would expect the typical reader of Stereophile to recall, in detail, a minor equipment review from three years ago is plain silly. That anyone, who presumably auditioned various amps would choose a Creek is merely sad. Best of luck to you.

Hi Pros,

We like to design a wireless system to transmit the digital audio signal. And we're consider either using 2.4GH RF or
Infrared. Can you tell us which solution is better and why?