Yamaha PJP-MC24 Manuel du propriétaire télécharger pdf (Page 13)

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Echo can occur in an audio conference system when the microphones pick up the audio reproduced from

the speakers. To counter this, the Projectphone incorporates a high-performance adaptive echo canceller

that eliminates any of its own sounds that it may pick up. Combining this with a design that minimizes

feedback, it offers smooth full-duplex performance that is easy on both the talkers and listeners.

Built-in noise reduction eliminates noise even in rooms with constant sound such as from projectors and air

conditioners. Noise is removed from the ambient sound picked up by the microphones. The listener hears

only clear voices.

One of the features of the PJP-25UR is its movable microphone arms. By moving the microphone arms to

adjust the pickup range, you can optimize pickup performance according to the seating arrangement.

No drivers, applications, or other software need be installed because Windows standard drivers are

supported. The Projectphone can be used as a microphone speaker simply by connecting it to a PC with a

USB cable. It includes audio terminals, and you can even use it for PCs in the company that are not

equipped with USB ports.

Since it runs on USB bus power, you can use the Projectphone as a microphone speaker simply by

connecting it to a PC with a USB cable. Connection is simple, offering incredible ease-of-use.

Connections can be made to a variety of different SIP servers such as the PJP-MC24 audio mixer for

multi-location connections, or NEC’s SV7000 SIP telephony server.

Zone mode is recommended for quiet rooms because of its wide audio pickup range. Thanks to the high

audio pickup performance of the arrayed microphones, voices are picked up accurately even when distant

from the microphones. Because the pickup range can be adjusted, you can ensure that even noises such

as from air conditioners and projectors are not picked up.

In this mode, the narrow directivity of the arrayed microphones allows you to pick up sound only from a

specific direction. It is the optimal mode for conferences limited to one or two participants, or in noisy

environments. Even in open spaces or when surrounded by noise, only the unadulterated voices of the

talkers are heard by the other party.

A microphone beam position detection function automatically tracks in the direction of the talker. Only the

unadulterated voice of the talker is picked up. Because pickup is directed toward the talker, this mode is

useful for multiperson conferences where noise sources are present.

The voices can be reproduced from different speakers according to the locations of the talkers. Outputs

without crossing not only make voices easily audible, but also enable easy identification of the location of

the current talker.

The microphone array’s talker detection function and the speaker array’s virtual sound source generation

function combine to facilitate the “talker position reproduction mode” that modifies audio output according

to the seating arrangement of the callers. Sound is output at different positions making it easy to

distinguish between multiple voices (up to three talkers per location over a two-location IP conference).

The PC applications include various adjustment functions and setup wizards that enable entry of detailed

settings. We also recommend installing PC applications in order to upgrade the firmware and ensure that

you always have the latest functions.

The RoHS directive (”the restriction of the use of hazardous substances”) refers to the Toxic Substances Control

Act implemented in the European Union (EU). Since its implementation on July 1, 2006, six designated substances

(lead, mercury, cadmium, hexavalent chromium, PBB (polybrominated biphenyls), and PBDE (polybrominated

diphenyl ethers)) have been banned from electric/electronic products handled in the EU region.

Firmware with the latest functions is offered free of charge. It can be downloaded onto a unit either from that unit or

by using the PC application, and we encourage all customers to do so.

Glossary

Adaptive

echo canceller

Movable

microphone arms

USB (Plug & Play)

USB bus-powered

PC applications

Supports RoHS

Firmware revision

upgrading

Zone pickup

Spot pickup

Microphone

auto tracking

SIP compliant

Divide mode

Talker position

reproduction mode

Noise reduction

Movable

microphone

arms

applications

USB

bus-powered

USB

(Plug&Play)

What are the advantages of Projectphone ?

Advantage 1 Improved business productivity

Advantage 2 Increased effective working hours

Business trip with 3 people flying -> 1 person flying + 2 people attending via the PJP

8 trips per month is tough. Twice per month is better, and it saves CO2 on top of travel time.

Advantage 3 Cut costs

Advantage 4 Reduced business trip CO

2 emissions

Advantage 5 Effective for contingency planning and

risk management

New systems with the sound of

Yamaha transform oﬃce conferences.

e Projectphone delivers results.

Enables easy, multiperson remote

conferencing anytime, anywhere.

Reduces business travel time, increasing

the ratio of time spent on primary duties.

Reduced travel expenses, phone charges,

and other personnel expenses.

Environmentally responsible companies are

placing priority on reducing CO

2 emissions.

e Projectphone is an eﬀective backup tool

for your phone line and for remote

conferencing when trouble occurs.

The Projectphone embodies the shape of conference systems to come with the sound of Yamaha. With the

sound quality you expect from Yamaha technology plus unsurpassed ease-of-use, countless companies have

chosen the Projectphone since its release in 2006. It has revolutionized conferencing in a variety of office

settings. Take a look at some of the Projectphone’s major success stories.

Adding the Projectphone to your workplace lets you easily hold confer-

ences with remote locations anytime, anywhere. Moreover, it allows you

have group meetings with multiple participants across multiple

locations, instantly eliminating the inconvenience of fixed video confer-

ence rooms that require reservations and scheduling. Given the

increased importance of work coordination when team members are

spread across multiple locations, business productivity can be dramati-

cally increased through real-time information sharing and communica-

tion.

By setting up a remote conferencing system with the Projectphone, you

can reduce time spent moving between business venues and increase

effective working hours. Of course, remote conferencing cannot take the

place of all appointments and meetings. But if details can be worked out

in remote conferences before meeting in person, you can make

meetings more productive and therefore less frequent. Also, business

trips that used to involve a large number of people can be streamlined

by sending one representative to the in-person meeting and having the

principles appear remotely with the Projectphone only when necessary.

This cuts down on the frequency of business trips, improves efficiency,

and raises productivity.

Cutting back on travel expenses also significantly reduces related

incidental costs. For example, an IP connection means no phone

charges when you use your existing LAN lines. Unlike with video confer-

ence systems, there are no usage charges for dedicated lines or

multipoint connection services, nor any need for expensive equipment.

The Projectphone lowers the frequency of business trips, and the

amount of transportation-related CO

2 that goes with them. Thus, the

PJP not only increases business efficiency and cuts travel costs, it also

makes a contribution to the environment.

IP audio conference systems are even useful during accidents and

disasters, They can be used as emergency backup phone systems, and

allow you to easily hold urgent meetings between multiple remote

locations when trouble occurs. They are also very useful tools from the

standpoint of risk management, because they facilitate coordination

with remote locations when employees are injured or sick and have

difficulties moving between sites.

Trips This Month

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11 12

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15 16 17

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29 30

:Trip

Trips This Month

4 5

11 12

18 19

25 26

1 2 3

8 9 10

15 16 17

22 23 24

29 30

:Trip : Remote conference

What are the advantages of Projectphone ? Glossary

Zone

pickup

Divide

mode

Adaptive

echo canceller

SIP

compliant

Noise

reduction

Spot

pickup

Firmware rev.

upgrading

Supports

RoHS

Microphone

auto tracking

Talker position

reproduction mode

･ Download the latest Projectphone success stories at the following URL.

http://www.yamaha.co.jp/english/product/projectphone/introduction/

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Yamaha PJP-MC24 Manuel du propriétaire Page 13

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