Author Topic: 2000 Tweeters!!!  (Read 25607 times)

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Offline Fanny Pack

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Re: 2000 Tweeters!!!
« Reply #45 on: October 02, 2009, 06:49:48 pm »
Awesome.  Good luck.  It's nice to be able to make some side money with your hobby.

Offline meandean

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Re: 2000 Tweeters!!!
« Reply #46 on: November 12, 2009, 10:57:39 pm »
  My Dell desktop (about a year old) has 8ch Realtek sound built in, and it came with Vista64. Anyway, I noticed that Vista allows you to set the common sample rate and quantization for your soundcard in the shared mode, based on it's capabilities. The Realtek allowed up to 192KHz/24bit I was skeptical, so I generated an ultrasound tone sweep at 192K, and found that the output level quickly crashed a little above 20KHz. I wasn't too suprised, because so much of this numbers stuff is just a marketing gimmick anyway.

  Recently, I thought I'd give it another go in Win7... I was able to play AND record back tone sweeps in excess of 80KHz! In the 8ch playback mode, the phase alignment was within a few degrees across all channels. I'm not sure whether it's a difference in OS, or the driver that came with 7. Either way, I have a monster Kenwood amp capable of 250W/ch with a bandwitdth of a few hundred KHz. All I need is for James to hook me up with some serious super tweeters so I can nuke all the bats, rodents and insects in the neighborhood. ;D

  Actually, I'm curious as to whether a PCAOM could work in this frequency range- it could make for some real HD photo color rendering. 
« Last Edit: November 13, 2009, 12:40:05 am by meandean »
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Offline James

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Re: 2000 Tweeters!!!
« Reply #47 on: November 13, 2009, 02:33:20 am »
I don't think a PCAOM would have any problem with a sample rate of 160KHz.

James.  :)
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