In Progress

Virtual Audio Sound Driver XP/Vista/Win7 - Loopback

Windows XP 32/64, Vista 32/64, Windows 7 32/64

Virtual Audio Device/Loopback

Virtual Audio Device driver which provides for Audio Out Device

and Matching Line In device. Basically its a Loopback where we can

play out audio to VIRTAUDIO and read same data back in thru Virtual

LINEIN Device.


Install as System Driver

We will handle code signing to support 64 bit mode

Supported formats:

8000/16/2, 8000/16/1

22050/16/2, 22050/16/1

44100/16/2, 44100/16/1

48000/16/2, 48000/16/1

Volume Control

Multiple Installations (supporting say 5 virtual LINE IN/LINE OUT)

Must be near realtime (no delay)

This will be a 1-1 mapping, no need to support for multiple connections


Must appear in Windows Sound Control Panel.

Must appear in say GraphEdit, each line in as separate INPUT.

Source Code should be properly documented.

Sufficient buffering so as to support polling of LINEOUT every 500ms to grab

data. We dont want overrun/underrun on buffers. We do not want a directshow filter,

this must be a valid windows system driver.

A comparable product: [url removed, login to view]

While that product has more than we need, it is what we want.

Please only respond if your are capable of doing the work, can do the work on time, have references.

To date we have been led on by two developers who have not been able to do the work.

Skills: C Programming, Windows Desktop

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Project ID: #549708

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