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July 2006

3725-22724-003/A

Configuring Video and Audio 
Devices for Use with Polycom PVX

You can select from a number of different audio and video input devices to use 

with your Polycom® PVX™ application, version 8.0.1 or later. 
This document lists the advantages and disadvantages of various devices so you 

can choose the correct one for your environment. It also describes the factors you 

should consider when selecting a video input device.
Once you have selected your audio and video devices, you need to configure 

them for optimum performance. This document describes how to use the PVX 

user interface to specify the audio and video device settings. If you plan on using 

PVX with the Computer Calling Kit for SoundStation2™ and 

SoundStation2W™, this document also describes how to configure the PVX 

settings for use with this kit. 
The final section of this document provides information on how to resolve audio 

and video issues.

Choosing and Configuring Video Input Devices

Polycom PVX supports a wide variety of video input devices. The quality of your 

PVX video largely depends on the quality and design of your video input device. 

These common devices have been tested with Polycom PVX version 8.0.1 or later:

AVerMedia AVerTV GO 007 FM Plus PCI

Creative WebCam Live!

 

Motion 

Creative WebCam Live! Pro 

GlobalMedia iREZ KD 1394 

GlobalMedia iREZ K2 USB 2.0 

Logitech QuickCam Pro 4000 

LogiTech QuickCam for Notebooks Pro

Logitech QuickCam Pro 5000

Logitech QuickCam Fusion

Logitech QuickCam Orbit MP

Veo Velocity Connect

V-Stream TV2800 (V-Stream Xpert DVD Maker USB 2.0)

Содержание 3725-22724-003/A

Страница 1: ...he Computer Calling Kit for SoundStation2 and SoundStation2W this document also describes how to configure the PVX settings for use with this kit The final section of this document provides information on how to resolve audio and video issues Choosing and Configuring Video Input Devices Polycom PVX supports a wide variety of video input devices The quality of your PVX video largely depends on the ...

Страница 2: ...formation which follows this table This device Uses this CPU load level AVerMedia AVerTV GO 007 FM Plus PCI Low Creative WebCam Live Motion High Creative WebCam Live Pro Medium GlobalMedia iREZ KD 1394 Low GlobalMedia iREZ K2 USB 2 0 Note that the GlobalMedia iREZ K2 USB 2 0 camera was tested using quality setting B the default setting Higher quality settings offer additional image processing capa...

Страница 3: ...U resources in use Referring to the table you see that the camera driver s load is High Logitech QuickCam Orbit MP Driver version 9 0 2 Medium Veo Velocity Connect Medium V Stream TV2800 V Stream Xpert DVD Maker USB 2 0 Low This device Uses this CPU load level CPU Usage CPU Load Level Description 200 MHz Low The device s driver load is equivalent to the load for devices supported in earlier versio...

Страница 4: ...icipants moving around the room and no shared documents Select Sharper Image for a sharp clear picture even though the motion may not be as smooth Select this option when all participants are seated and you need to show slides or another type of document during the call Enable VGA 30 frames per second Clear this setting in most cases Select if your device can support VGA at 30 frames per second wh...

Страница 5: ...fficient to avoid interference with audio quality Some webcams may experience the following Limited audio quality Audio is comparable to traditional telephone quality Slower computer function The camera s built in audio echo canceller may cause additional CPU load Extended audio delay This is caused by the camera s built in audio echo canceller It results in a loss of synchronization between the v...

Страница 6: ...rophone with good directionality and frequency response Occupies additional desk space Limited audio quality The Windows XP echo canceller limits audio to 7 kHz This is comparable to traditional telephone quality Headset with microphone Full 14 kHz audio experience in some headsets since no echo cancellation is required Provides a range of choices when selecting a high quality microphone with good...

Страница 7: ...use the sound playback device specified in the Windows Sounds and Audio Devices control panel Select None to use no audio output device Audio Input Device Select Auto to use the sound recording device specified in the Windows Sounds and Audio Devices control panel Select None to use no audio input device Echo Cancellation Select Internal when using Windows XP to use the Windows XP echo canceller S...

Страница 8: ...ne version SS2 CON 01 115 or later SoundStation2W conference phone version S2W CON 01 2xx or later To use PVX with the Computer Calling Kit 1 Install the Computer Calling Kit as described in the Instructions for Computer Calling Kit document which you received with the kit 2 From the PVX Main page select Setup Audio 3 Configure these settings Setting Description Audio Output Device Select your com...

Страница 9: ...4 The system is less than a 2 0 GHz Pentium 4 or equivalent and it is using most of its resources for media processing leaving few resources for other applications Adjust PVX to allocate fewer system resources to video processing To do this 1 Go to Setup General Performance 2 To reduce the system resources allocated to video select Other Applications The device driver for the video capture device ...

Страница 10: ...s too loud Reduce the volume The microphone and speakers are too close together Separate the microphone and speakers as far as possible The microphone s audio gain is set too high Go to Setup Audio and enable Automatic Gain Control If you use a laptop s integrated speakers with the laptop s integrated microphone or with a webcam s microphone the structure of the laptop computer and the quality of ...

Страница 11: ...he speaker volume is not adjusted correctly Adjust your Windows volume control settings 1 Click Start and go to Settings Control Panel Sounds and Audio Devices 2 Click the Volume tab 3 In the Speaker Settings section click Speaker Volume 4 In the Speaker Volume dialog box adjust the volume and then click OK 5 In the Device Volume section click Advanced 6 Adjust the Line In volume and then choose O...

Страница 12: ...ranties in respect of its properties including but not limited to correctness and fitness for purpose Trademark Information Polycom and the Polycom logo design are registered trademarks of Polycom Inc PVX is a trademark of Polycom Inc All other brand and product names are trademarks or registered trademarks of their respective companies ...

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