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Use Mic input directly to speakers

Posted on 2006-10-19
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Last Modified: 2008-01-09
Hi,

I'm trying to figure out a way to send the mic input on a laptop directly to the speakers.  We have a projector, some nice logitech speakers and want to use the system to aplify the presenter's voice as well as the presentation.  It seems like that should be easy to do but I can't find any settings (Windows XP) that allow that.
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Question by:BasilFawlty001
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17 Comments
 
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Accepted Solution

by:
JamesTX10 earned 375 total points
ID: 17767132
Most of the time the mic audio does go right to the speakers. Open you volume control and make sure that the mic is not muted. Also check on the recording setting that the mic is selected.
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Assisted Solution

by:olifarago
olifarago earned 375 total points
ID: 17767134
All you should need to do is in the volume control settings in the playback section unmute the Mic.
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Author Comment

by:BasilFawlty001
ID: 17767265
I've never seen a windows system that sends the mic input directly to the speakers.  It's not really allowed because it would cause a feedback loop when the speakers are pointed at the mic (like in a typical desktop or laptop scenario).

The mic is unmuted and I can record audio no problem ... I just need to send the audio to the speakers.
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Expert Comment

by:olifarago
ID: 17767374
No but there are the two sections Playback and recording, if you unmute the mic in the playback section it patches straight to the speakers.  Or at least it does on the three machines I have here.

If not I cant help Im afraid, maybe someone else can help?

Oli
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Expert Comment

by:JamesTX10
ID: 17767377
hum, most systems that I have seen send the audio right through.

What sound card? My sound blaster does this. Did you open the windows volume control and go to options, properties, recording, and make sure that the mic is selected and turned up?
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Author Comment

by:BasilFawlty001
ID: 17767446
I don't have mic available under playback.  It is not on the list of volume controls when I go to Playback > Properties.  It's Sigmatel Audio on a Dell laptop.  

My desktop with Nvidia audio has the mic in both playback and recording.  

Am I hooped?
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Expert Comment

by:JamesTX10
ID: 17767539
Looks like it is a sigmatel issue. You could always try a USB mic.
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Expert Comment

by:JamesTX10
ID: 17767552
or add a USB or PCMCIA sound card.
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Author Comment

by:BasilFawlty001
ID: 17767586
Doh!  I wonder if I get a bluetooth mic, if it would show up or not ... guess I need to do some research.  
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Expert Comment

by:JamesTX10
ID: 17767607
BT should work too. I don't think that the sigmatel hardware can handle it. So adding other sound hardware (usb mic, BT etc) should allow it to work. Do you have a BT headset for a cell phone? Link it to the laptop and try it out.
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Author Comment

by:BasilFawlty001
ID: 17768193
the laptop doesn't have bluetooth so it would need to be a seperate unit.  I have bluetooth headphones that work well, but a mic is hard to find it seems.
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Expert Comment

by:JamesTX10
ID: 17768364
if the laptop does not have BT built in then I would lean to a USB mic. Cheaper and one less thing to carry vs. USB BT adapter and BT mic.
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Author Comment

by:BasilFawlty001
ID: 17768405
Yea ... wireless would have been nice though.  I guess I'll need to see if the USB mic from logitech will give me the option to unmute it.
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Expert Comment

by:olifarago
ID: 17768510
In volume control under options then properties is microphone in the list of options when you click playback, if it is put a check in the tickbox?

Oli
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Author Comment

by:BasilFawlty001
ID: 17768794
It's not there ... that's the problem.  To further complicate things, I've read that usb mics have a bit of a lag that prevents them from being used with monitors.
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Expert Comment

by:JamesTX10
ID: 17768837
Another option that I just thought of is this:

Are your speakers powered? Do you play sounds from the laptop during the same time as the mic? You could try a Y adapter to plug the laptop and the mic into the speakers at the same time. I don't know if you would have issues with the mic and speakers hooked up at the same time. Some speaker sets also have two sets of inputs that can be used at the same time. I have a pair of altec lansing speakers that have two inputs.
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Author Comment

by:BasilFawlty001
ID: 17769097
The speakers are powered. A mic needs to be powered in some way ... that might work if I could find an 'active' mic.
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