Hello Howard,
It all depends on how the amp was made.
If the amp was designed with a USB input port, then chances are, that the
amp has a digital to analog converter built in to it.
Plugging an amp like that in to your USB port, will give you audio.
But however, your computer will see that amp as an external sound card.
But like I told you about your headphone microphone combo, the converter
will convert the digital signal in to an analog signal.
The only other way you will get analog to and from your USB port, is to use
a USB sound card.
Just plugging a USB cable in to your computer and hooking the other end of
it in to your amp or speakers won't do that for you.
Hope this helps.
My best regards.
John.
----- Original Message -----
From: "Howard Traxler" <[email protected]>
To: "PC Audio Discussion List" <[email protected]>
Sent: Monday, June 07, 2010 3:01 PM
Subject: Re: audio on a USB PORT
So John, I think you're telling me that, if I were to connect an audio amp
to any place on a USB cable or the header on the system board, there's no
way I'd ever get audio out of it; just ones and zeros. I guess somehow I
thought the USB was a be all and do all and would have lines for analog
audio? Guess not, huh?
Thanks for the info.
Howard
----- Original Message -----
From: "DJ DOCTOR P" <[email protected]>
To: "PC Audio Discussion List" <[email protected]>
Sent: Monday, June 07, 2010 6:59 AM
Subject: Re: audio on a USB PORT
Hello Howard,
In this case, you are dealing with a device that is called, a digital to
analog converter.
However, this device is inside of your headphone mike combo.
You are getting the audio as an analog signal, but your device is
converting the bit streams of 0's and 1's in to the analog signal that
you are receiving when you listen through your headphones.
The same thing is happening when you talk through your mike.
Hope this helps.
My best regards.
John.
----- Original Message -----
From: "Howard Traxler" <[email protected]>
To: "PC Audio Discussion List" <[email protected]>
Sent: Monday, June 07, 2010 7:44 AM
Subject: audio on a USB PORT
Does anyone know how many conductors are terminated in the various types
of USB connectors? Is audio actually carried on any of these
conductors? Ideally it would be 6 conductors for audio: two each for
stereo output, high level input, and low level input. However, it seems
that anything I've read points to serial data only, and is only a port
through which one could connect an external audio device. I have a
stereo headset with a mic that connects to a USB port. I wonder what
kind of data is being passed up that wire?
Wonder if anyone has any thoughts (or, perhaps, some real knowledge).
Thanks.
Howard
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