Need test tones

I could use some help. I am almost through putting up my acoustic treatments in my first (largest room) and was looking for a source for test tones or a program for analyzing the room for frequencies. I have post before but my searches here bring up only dead links. Thanks for your help! Tom

Tom, > looking for a source for test tones or a program for analyzing the room for frequencies. < Test tones show only the raw response but not time-based issues like early reflections and ringing. They're still useful though. Start here: http://www.realtraps.com/test-cd.htm And see these too: www.etfacoustic.com www.hometheatershack.com/roomeq/ --Ethan

I appreciate the info Ethan. I am entering a phase with the studio that I dont have any experiance with. My old studio room actually sounds pretty good, but was totally by accident. Now that I tried to design things intentionally with decent room ratios and heavy drywalled single sided walls with airgaps and all, I notice a small amount of low frequency ringing right about an "A" possibly 110 hertz or 220 I suppose. With everthing being so airtight any percussive sound seems to set something in sympathetic motion. I can do a quick shout and start my rolling scaffold into ringing. Once i get everthing unnecessary out of the room and get a few corner Bass traps in I need to thoroughly check the room out. Any suggestions you or others might have considering my journey ahead, I'd appreciate it greatly. Thanks, Tom