usb signal to sinewave

[Alexandros81]

Hi I want to manipulate the usb voltage levels via a program written in ? language so to produce a sine wave with 5-15kHz frequency. How can it be done? I have no clue.
I would like to have a window on my laptop that manipulates the frequency and the voltage level of the sine wave.

[dannyf]

I have no clue.

I would start right there.

[Balaur]

Use the existing soundcard or any cheap USB one + any software that allows you to produce sounds (Audacity, SoundArb, ...)

[casinada]

Please set your profile to show your country. Also post your age and what do you want to accomplish.
Use any sound producing program and use the audio output
a simple search found :
http://www.nch.com.au/tonegen/
or
http://www.electronics-lab.com/downloads/pc/005/

[Jon86]

It'll be difficult to filter out a squarewave to a sine wave over difference frequencies, easy at one but not so easy over a range. As suggested, use a USB sound card or just the speaker output.

[FrankBuss]

Obviously Alexandros81 has no idea how USB works and that the outputs are digital, only, but nevertheless could be interesting to abuse an USB host controller to create a high frequency PWM signal, which then could be filtered to create a sine wave in the required range