I have a mic Behringer C1u and would use it with an M-Audio fast track usb interface. How can I do it?

Did you install the mic's drivers before plugging the mic in? Have you tried it on 32bit operating systems other than Win 7? I don't think it will be an audio driver problem ie: asio4all. But because the OS doesn't recognise the driver automatically it might indicate where the problem lies. I am not familiar with this particular mic ( I use AKG cs1000s with Zoom R16 audio interface ) but I know there can be issues with some 64 bit systems and certain audio hardware. Nothing in the Behringer forums?

you could get away with getting a small behringer mixer that has +48V of power for the mic. Put your mic cable into there and then run straight out using 6.5 (guitar) cable to your computer. you may need some connectors to convert your jack.

Your condensor mic requires special electrical handling usually reserved for proffesional audio equipment, not a PC. You will need two pieces of equipment, a short XLR cable and an adapter cable.
1) Behringer PS400 Ultra-Compact Phantom Power Supply.
This will supply the mic with necessary Phantom Power.
2) Rapco Horizon ISOBLOX Transformer Isolation 1:1 BLOX Device
This will isolate the Phantom Power from your computer, allowing it to work as necessary.
The adaptor connector cable you need will be a female XLR (with pins 1 and 3 shorted, pin 2 hot), through a cable connect to a 1/8" mini plug. They connect in that order with a short XLR cable between 1) and 2). .




I’m happy to assist further over the phone at https://www.6ya.com/expert/stanley_d05f392d8fafa669

How to Operate a Behringer C-1U

The Behringer C-1U is a USB condenser mic for recording individual instruments. A condenser microphone is a mic that uses vibrations produced by sound to change the distance of internal plates that produce signal. Condenser mics typically require an extra change, known as phantom power, to operate. Since the C-1U is USB powered, phantom power is not needed. The Behringer C-1U has a frequency response that favors sounds around the 10KHz range. This heightens the clarity of recorded signals due to the microphone's treble boost.

Things You'll Need:

* Computer with USB 2.0 port
* USB cable
* Recording software

Instructions

Turn on the computer. When the operating system loads, connect the microphone.

Install any necessary drivers for the C-1U. This will happen automatically when the device is connected.

Select the Behringer C-1U as an input source in any desired audio software. In Windows, click the "Volume" icon in the task bar to open the mixer. Select the C-1U as the primary input. On Macs, use the "Audio/MIDI Setup" in the "System Preferences" menu to select the C-1U as the primary input


Note: make sure you activate the phantom power on the mic. That's the only way to power up the microphone.

Have a nice day.

Answer from official Behringer support:
The green LED is fine. The newer units have green LEDs.

Please download and install asio 4 all from:

http://www.behringer.com/EN/Products/C-1U.aspx

We hope that we have been able to help you with this information.

you should be using these:

M-AUDIO - Fast Track Pro - 4 x 4 Mobile USB Audio/MIDI Interface

I suppose that you connect the behringer mixer master out (just one of the two channels in case of two) to the guitar input of the Fast Track. Have you tried to hear your mic from the phones output at the front panel of the Fast Track? Try changing the guitar gain and the output level at the top of the Fast track.

I'm waiting for your results or clarification, please post.

Thanks and regards
Please kindly rate this solution
Stelios

First thing is what operating system is on the computer.
Second is what does device manager say about the recording interface?
Third in audio properties from the task bar icon, what is the default device for recording?

Use the taope outs. They're the RCA plugs located in your manual as "20".

All you have to do is to connect with 2 cables your behringer mixer's output to the two 1/4” TS plus in the front side of the Fast Track Pro and a usb cable from the rear panel of the Fast Track Pro to your pc's usb port. I suppose that you have installed the drivers for Fast Track Pro at your pc.
Anyway in case of a problem or clarification, don't hesitate to post.

Thanks and regards
Please kindly rate this solution
Stelios