Help with microphone into pc spdif....

4 replies [Last post]
Offline
Joined: 01/10/2005

My pc has a spdif interface for digital input (optical and spdif). I would like to connect my dynamic microphone (XLR balanced) to this input for home recording. I know I will need some type of A/D converter to get the signal into the pc. I have been searching for some type of direct box or converter to acomplish this but the solutions I have found on the net are far too expensive for my purposes. What I need is something similar to what the Edirol UA-25 USB Audio and MIDI Interface (http://www.edirol.com/products/info/ua25.html) does or the UA-5, but without all the extras. I just need the simplest form of input for my mic, with perhaps a limiter to avoid digital clipping to the spdif of the pc.

Any ideas or suggestions?

Thanks,
Chris

Offline
Joined: 02/12/2009

One way or another you'll need a mic preamp to bring that mic-level input up to a line-level input. Either get an audio interface with a built-in mic input; or get a separate mic preamp and send its output into a line-level audio interface. First, go to my list, sorted by price:

http://www.silentway.com/interfaces

Then do a search on that page (control-F on PCs, command-F on Macs) for "XLR" or "mic".

You can find a stand-alone mic preamp for under $100, like these:
http://www.zzounds.com/a--3778/prodsearch?cat=2891&form=prodsearch&cat2=&ob=p19&submit=Filter+Results

You might even find a stand-alone mic preamp with a S/PDIF output. But in the long run, you're better off with a dedicated audio interface for your computer. It will make everything that goes into (and comes out of) your computer sound much better.

n/a
Offline
Joined: 01/10/2005

Thanks for the advice.
Unfortunately, there are no mic preamps with spdif or optical outs in the sub $100 range. The list is pretty comprehensive and informative. I may just have to bite the bullet and layout a bit more $$££.
Thanks again for the advice and your website is both informative and helpful.

:D

Offline
Joined: 01/10/2005

I have a further question in relation...
Do most usb audio interfaces/mic preamps send the digital audio signal through the usb port? If this is so, then I wouldn't necessarily need a mic preamp with a spdif out. It seems that this feature adds quite a bit to the cost of the unit.
If I can find a unit that uses the usb port to send the digital audio signal into the pc, I may be able to save money...

Is this possible :?:

Offline
Joined: 02/12/2009

Exactly! All USB audio interfaces send the audio to/from the USB port. That's their main purpose. Most users don't need the extra step of using the S/PDIF port. Just get a USB or FireWire audio interface which has a mic preamp, via my link listed above.

n/a
Share this