Phoenix Audio SOHO Card User Manual

SOHO Conference Card™

for Voice over the Internet

The SOHO Conference Card gives PC users the
ability to conduct an internet telephony conference
hands-free and headset-free. The SOHO Card
converts your Desktop PC into a High-end, Internet
Conferencing device. Simply insert the SOHO Card
into an open PCI or AGP Card slot and connect your
external microphone and desktop speakers. Your
Desktop PC is now equipped for Voice over IP and
Web Conferencing!

Applications:

• Internet Telephony

• Video-Conferencing

• Web Conferencing

• Distance Learning

• Instant Messaging

Features:

Conforms to ITU-T G.167 Standard for Echo
Cancellers

• 100% Full Duplex Performance – No attenuation
(either way) during full duplex

• Fast Convergence, even when In Full Duplex
Mode

• Very Low Delay

Simple Connectivity / Easy Installation
Audio Performance:

• Speech processing and echo suppression at
16KHz sampling rate

• Maintains Audio Performance of the PC for HiFi
audio applications

Digital Signal Processor Algorithms:

• Acoustic Echo Cancellation

• Noise Cancellation

• Residual Echo is Suppressed to the Environment
Noise Level to Prevent Artificial Ducking of Signal

• Power Level Equalization
System Requirements:

• One available PCI2.1 or AGP -compliant slot

• Will work with any PC microphone, Loudspeakers
and Soundcard (microphone included)

Specifications:

• 100% Full Duplex Performance – No
attenuation (either way) during full duplex

• Acoustic Echo Cancellation >40 dB

• Noise Cancellation >10dB

• Residual Echo is Suppressed to the
Environment Noise Level to Prevent Artificial
Ducking of Signal

• Power Level Equalization

• Convergence speed 40 dB/sec

• Tail length (200ms)

• Convergence during full duplex (No recovery
time after full duplex)

• Low delay (10 msec)

• Bandwidth 20 – 7500 kHz for Speech
Processing Maintains the Soundcard bandwidth
for other applications (ie; music, gaming, etc.)

Comprehensive Connectivity:

• Loudspeaker IN (Green)

• Loudspeaker OUT (Green)

• Microphone IN (Pink)

• Microphone OUT (Sky Blue)

• Powered by the PC

* Audio cables included (color coded)

Phoenix Audio Technologies

www.phnxaudio.com

SOHO Card Installation

You need to have:

• A PC with an empty PCI slot.

• A microphone (a Phoenix Eyeball microphone is included in the SOHO package)

• PC speakers (not included)

• Two color coded Jumper Cables (included in the SOHO package)

• Your PC has to have a soundcard

You don’t need any driver or any software to install and use the card

Note: the SOHO card “sits” between your microphone and your PC loudspeakers on one hand, and your PC soundcard on
the other hand. As such, the microphone and the speakers are connected to the SOHO card, and the SOHO card is connected
to the soundcard. The connection to the soundcard is done externally, using Jumper Cables (provided). The only direct
connection between the SOHO card and your PC is to the PC power supply. The SOHO card is not connected to the PC data
bus or any other interface bus. It cannot interfere with any application you have ru nning on your PC, and it does not use or
require any driver. The PC will not even know that the SOHO card is plugged in.

The following describes the required connections (see diagram below):

• The Eyeball microphone (or any other microphone supplied by the user) is connected to the SOHO Pink

• The user’s PC loudspeakers are connected to the SOHO Green (any one of them – the two green connectors are exactly the

same and are interchangeable)

• The Jumper cable with Pink and Blue Jacks connects the SOHO Blue with the PC’s soundcard’s Pink (Microphone Input if
your soundcard’s connectors are not color coded)

• The Jumper cable with two Green Jacks connects the SOHO Green (the free one – the two green connectors are exactly the
same and are interchangeable)) with the PC’s soundcard’s Green (S peaker’s Out if your soundcard’s connectors are not color
coded)

SOUNDCARD

SOHO

Phoenix Audio Technologies

www.phnxaudio.com

PC Microphone

(Eyeball)

PC Loudspeakers