When you say you have to drop the quality down to 56bits, are you dynamically converting to mp3/ogg on the fly? If you are, thats what is sucking your processing power. Actual recording shouldn't burn much cpu unless your using plugins, or using some form of driver acceleration, i.e. asio, to lower latency by increasing priority, it's the hard drive speed and audio latency that are the biggest issues. I used to do stereo recordings at 16bit/44.1khz/CD quality with a sony stereo mic into my computer, at the time it was a cyrix 100mhz with 32mb ram, and a couple of 1g hard drives, then take the hard drive out to my work place to use the cd burner because they were still expensive and scsi based

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