So the charlie sub setup will be passing on to someone else, eh? I'll be very interested to see what you put together at your new home, charlie.

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gonk -- Saloon Links | Pre/Pro Comparison Chart | 950 Review

Sorry about that soundhound. I didn't want to give the impression i wanted a freebe. I just wanted to know where to send the money order and how much......lol Let me know your thoughts? I would like a copy to test and demo my system.

Thanks
Lasher

This time the preliminary plan is a dedicated room with a FP setup for video and handmade speakers all around, this time I'd like to use active crossovers and do all BM between the pre/proc and power amps. And with all actives, there should be lots of discrete power amp channels.....



I suspect so. The first folks to look at the house made an offer and it looks like we can reach terms soon. Partly the location, and partly the 'features' I think. The orginal offer specified the audio system was to stay as is, so I'm sure they noticed.

2.0 will take some time, but I'll be sure to give progress reports as needed.

Thanks for the help and support over the last project guys.

Okay Soundhound, I am going to go with the TrueRTA. I have one of the recommended Behringer ECM8000 Measurement Microphones and a phantom power supply. How do I get the balanced output of the microphone into the unbalanced input of the sound card? I am concerned that the adapters available may not be flat down to 10hz. Thanks for identifying this cool software.

Normally you would short the "low" side (pin #3 of an XLR) of the balanced line to the "ground/shield" (pin #1) of the cable, and take your signal from the "hot" side (pin #2). I don't know the specifics of your microphone's output, but this is the standard way of doing this.



[This message has been edited by soundhound (edited August 24, 2003).]

I'm not sure, SH, but I think THIS is bass! From Reuters news agency ...

Black Holes Sing Bass, But Humans Can't Hear Them

http://story.news.yahoo.com/news?tmpl=story&cid=570&ncid=753&e=1&u=/nm/20030909/sc_nm/space_bass_dc

"One particularly monstrous black hole has probably been humming B flat for billions of years ... But the pitch of the sound is about 57 octaves below middle C ... researchers said, and they believe it is the deepest note ever detected in the universe."

"Heavenly bass?"

You're darn right humans cant hear them...

A. It's in space. Since space is...well...a void, there isn't any medium to transmit sound through!

B. 57 octaves below middle C...that's so low that couldn't you hear, heck, you wouldn't even be able to time the pulses! C4 (middle C) is a frequency of 261.6 Hz. (261.6 vibrations per second) Octives are produced by doubling or halving the frequency in question, therefore the octive above middle C (C5)would be 523.2 Hz, and the octive below middle C (C3) would be 130.8. The smaller the number, the fewer vibrations per minute there are. 57 Octives below middle C would be a frequency of 6.9-n17. Thats .69 with 17 zeroes in front of it. Now my math may be a little off...lord know's I'm not a math major, but we aren't talking about a frequency that you can measure in seconds. It's not a frequency that you can measure in beats per minute, nor beats per days....or years...or even decades. We're talking one pulse (movement from peak to peak of a wave) per THOUSANDS of years. Why they decided to give it a musical connotation is beyond me.

[This message has been edited by fmcorps (edited September 10, 2003).]

Darn! I was hoping to be around to hear how the song ended! It starts off catchy enough. And the music video would have been a killer!

Jeff Mackwood

Wow! "How low can you go?" Our subs don't have a prayer.

OK, now you've got me curious. I had to dust off Excel for this one, but I think I've got it sorted out now. If we are 57 octaves below 261.6 Hz, that puts us at (261.1/(2^57)) -- or somewhere around 1.81*10^-15 Hz. That comes out to one cycle every 17,456.9 millennia - once every 17.5 million years. I don't think the Radio Shack SPL meter's going to know what to do with that test tone.

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gonk -- Saloon Links | Pre/Pro Comparison Chart | 950 Review