NexTalk.net Video

You can now place video calls to other NexTalk Users or to Video Relay Services. NexTalk video turns your PC into a video phone removing the need for a stand-alone TV based video phone.

What are the advantages of NexTalk video over TV-based video phones?

  • Uses a standard PC.
  • Takes up less desk space.
  • Support simultaneous video, text, and voice.
  • Uses sophisticated firewall traversal.
  • All calls, even video calls, are backed by the NexTalk mail services if the call is not answered.
  • Supports "One-Nbr" access to Video Relay Services.

What are the system requirements to run NexTalk.net Video?

  • Pentium-4 2.0 GHz or or AMD equivalent processor with 256 MB RAM running Windows 2000 or XP.
  • Hyperthreading CPU recommended.
  • Video card with 128 MB RAM supporting DirectX 9.0c.
  • One USB Port (USB 2.0 recommended).
  • USB camera capable of 30 frames per second.
  • Camera resolution supported: CIF (352x288).

How do I make a NexTalk video relay call?

Just press the "Relay Call" button, select "Use NexTalk VRS" and enter the phone number of the person to call. The screen shot below shows the screen for starting a video relay call.

VRS call screen shot

What are the camera requirements to create a video call?

NexTalk can use a wide variety of video cameras including inexpensive web cameras. The list below are the cameras we have tested.

 

NxVideo was designed to be hardware agnostic. The software has been comprehensively tested with a large number of components and operating systems. A list of recommended hardware follows. If you encounter a problem, please contact support.

Recommended Hardware

The following hardware produced the best results in our tests and is recommended by NxVideo.  Please pay special attention to the exact product names, especially when selecting a camera for use with NxVideo. Vendors typically offer several similarly named products with huge quality differences between them.

PC
NxVideo adapts to the actual performance of the PC. In other words, the faster the PC the better the video quality.

  • Windows PC with Win 2000/XP
  • USB1 or USB2 interface for Webcams
  • Internal or external grabber board if analog cameras are used 64 MB suggested
  • CPU starting from 1.500 MHz, 2 GHz recommended
  • 1 GB memory
  • Internet connections: DSL or Cable recommended

USB Cams

Headsets

  • Plantronics Audio.50 (single-sided)
  • Plantronics Audio.40 (double-sided)
  • AMH-300
  • AMH-250s

External Microphones
As a rule, never use the built-in camera microphones.

  • Logitech USB Mikrofon
  • ClearMic USB (with integrated echo compensation)
  • ClearMic Duo

PCI Capture Cards

  • Hauppage Impact VCB
  • Hauppage WinTV

External Capture Systems

  • Hauppauge WinTV USB 2

Sound Cards
Any sound card should work, with the exception that digitally enhanced audio, like Dolby Surround, may impact external echo compensation.

  • SoundMax
  • Creative Soundblaster PCI 128
  • Yamaha DS XG

 

Tested Hardware

The following hardware has been tested to work with NxVideo. However, some of the cameras listed may produce non-optimal results. If possible, use those listed in the recommendations above.

USB devices

Model

Win98/ME

Win2000

WinXP

USB2

Logitech Quickcam Pro 5000

 

 

x

x

Logitech QuickCam for Notebooks Deluxe

 

 

x

 

Logitech QuickCam for Notebooks

 

 

x

 

Logitech Quickcam Pro 4000

 

 

x

 

Philips ToUCam Pro II PCV840K

 

x

x

 

Philips 610NC

 

 

x

 

Philips SPC 900 NC PC Camera

 

x

x

x

Philips Vesta Pro USB

x

x

 

 

Philips ToUcam PCVC720K

x

x

 

 

Philips ToUcam PCVC730K

x

x

 

 

Philips ToUcam PCVC740K

x

 

 

 

Hauppauge WinTV USB 2

 

 

x

x

iREZ K2r

 

 

x

x

Creative NX Ultra

 

x

 

 

Creative Notebook Ultra

 

 

x

 
Capture cards

Model

WinNT4

Win2000

WinXP

Hauppauge WinTV

x

x

x

Hauppauge Impact VCB

x

x

x
Graphic cards

Model

Win98

WinNT4

Win2000

WinXP

Geforce 6600 GT

 

 

 

x

Geforce FX 5200

 

 

 

x

ATI Radeon X600

 

 

 

x

ATI Radeon 9200

 

 

 

x

Matrox Millenium G400

x

x

x

x
Sound cards

Model

Win98

WinNT4

Win2000

WinXP

Creative Soundblaster PCI 128

x

x

x

x

Yamaha DS XG

x

 

x

x

SoundMAX

 

 

 

x