Dieter wrote:
In message <[EMAIL PROTECTED]>, "Tom Cook" writes:


if the performer wants to hear himself post-effects.


I was afraid there would be something like that.  :-(


Another thing to note: timestamps are not good enough for synchronisation,
there has to be a system-wide clock.  Otherwise the different clocks will
drift.


I was assuming a master clock distributed to each box.  (Via equal length
cables, of course)

The master clock module, and its octopus cable, could have a high markup,
since only high-end applications would need it.

The mic input box detects if a clock cable is plugged in, and switches
from internal clock to master clock.

that's the BNC labeled 'word clock' that's on pro audio gear

[EMAIL PROTECTED] writes:

}> How many XLR connectors can you fit on a PCI/PCIe card edge?
}> I don't have dimensions handy, but I'm thinking you'd need a doublewide
}> card edge?  How many card slots does your computer have?
}
} exactly 0.
} the card edge is about 20 mm, whereas the XLR requires 25 minimum :D

So I guessed right, you'd need a double-wide card edge, using up two valuable
slots.

wouldn't work even. most cases have a separator between 2 slots

} besides, you don't want analog inside the PC case

Agreed, I'm just trying to hammer the use-a-slot idea deeper into the ground.  
:-)


the required hardware to transform symetric to asymetric is your standard, simple yet effective op/amp connected in an "adder" configuration between the + and -
the shield is connected to the power 0v


I suppose someone sells little boxes that do this?

Is an op-amp considered good enough for very high end audio these days?

depends

Would the mic input go straight into the ADC, or would there be some
sort of preamp first?  Some premium, la-dee-da hand-selected FET?

yes, you'd probably need that

I'm thinking it would be nice if the same PCB could be hooked up
to either balanced or unbalanced inputs.  Maybe add/delete a front-end
component or two, and/or wire the input jack to different points on
the board?

that's classic, just use a TS instead of a TRS jack
the (-) connection is on the ring and gets grounded when using a TS jack

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