What is Notification Sound? Popular Notification Sound Brands.

Hannouncement sound system used for buildings, hospitals, apartments has become more important than ever. This system will help notify information to users quickly and accurately. This is considered one of the extremely convenient solutions for today's life.

What is a public address system?

Public address system The English name is Public Address system. This is a sound system that is responsible for responding to announcement and communication requirements. Or emergency announcements between departments in areas of the entire system.

System simply understood as including speakers arranged in areas that need to broadcast. To serve the purpose of announcing connections to a main control center with a notification microphone.

In the control center, there will be audio selection buttons and area control selection buttons. When information needs to be sent to a certain area, the user just needs to press the corresponding area selection button.

In addition to being used for information and announcement purposes, this sound system can also be used to play background music, giving people moments of mental relaxation.

Principle of operation

The operating principle of the system is as follows: Audio signals are transmitted to the input of public address system. These audio receiving devices are mainly microphones, CD players, laptops, and phones. Then the devices will be sent to the central processing units for processing.

Specifically, the audio signal above will be sent to the central controller. This is where the information is emitted and to select the speaker area to emit the information. Then the audio signal will be sent to the central processing unit, which is the amplifier.

At the amplifier, the signal will be processed and amplified so that the sound emitted has a loud enough volume. Covering a specific public space. The role of the central controller in public address system Same is speaker area selection.

Combined with the amplifier's sound enhancement role, the sound will be transmitted to the necessary areas. Bringing clear sound quality for the network cable system. In addition, the storage power supply will ensure the central processor operates safely. And stably in the event of a sudden power failure.

Outstanding features 

When a fire alarm is detected in a pre-programmed and connected system, the system will sound pre-recorded emergency alarms to all areas of the building or a pre-set default area.

The system integrates about 6 Zones and can be expanded to use additional information Zones.

Under normal conditions, this sound system will be used to play background music. It is used for use in areas or locations where it is needed.

Used for security control personnel or fire protection personnel. To notify an emergency message (notified by Emergency microphone attached to the system on the front of the Controller). Thus, the information will immediately be given the highest priority.

In case of fire, this sound system will give priority to information and instructions for escape. Comply with standards IEC 60268-5, EN55103, EN55020… certified to ISO 9001, ISO14001.

Emit a signal clear sound newspaper emergency. By language systems through digital recording devices (Multi voice file).

Emergency notification system, zone selection information (1 to 32 zones or all).

Broadcast emergency signals in multiple languages.

Time format for daily, weekly work.

What devices are in the public address system?

About the audio system input device

The input device here is usually a microphone. This is an indispensable device in any sound system, especially public sound. The microphone's task is to receive sound signals and convert them into electrical signals. Microphones in public sound systems often include zone microphones and emergency announcement microphones.

Reamote microphone phones: Are microphones with zone selection buttons, the call stations are connected in a loop by a 9-pair control. And there is a cable for the microphone, usually placed in the central control area.

Emergency microphone: A microphone used for emergency situations such as fires or to convey urgent information.

In addition to the microphone, public sound system add can also have other input devices. For example, devices such as DVD players, laptops or phones, etc.

Central processing unit of public address system

In public sound system add, the basic central processing equipment needed includes:

Central controller (Controller): Is a device that provides the function of broadcasting announcements. At the same time, it also has the ability to select the speaker area to broadcast information, universal system. Thus, the central controller will also include increased capacity.

Extender (Router): As the name suggests, the extender will be connected to the central controller. And is used to expand the number of speaker zones in the system.

Audio controller: Is a device commonly used for public address system long-standing. The device is effective when amplifying the output audio signal. But they also integrate the ability to adjust the sound to produce better sound quality.

The amplifier device is responsible for receiving input signals. With the ability to process and amplify output signals, it adds power to the public sound system (480/360/240/120W)

Charger and power storage (Backup power): Is a device used to produce power in case of sudden power failure.

Background music player: This can be a CD player to play background music, a memory card or an AM, FM radio. With the task of playing music to entertain and amuse customers.

Output device used for audio system

Output devices in one public sound system addg are loudspeaker devices. They have the function of emitting sound and information to the listener. Depending on the installation location, people prioritize the appropriate speaker model for consumption. Currently, on the market, there are 3 speaker models commonly used in the above sound systems, which are:

Ceiling speaker: Usually installed along the corridors of office areas, buildings, etc. public sound system addThis speaker line has a particularly diverse design. With a power level that meets the consumer needs of the installation location.

Wall speaker: Similar to ceiling speakers, this type of speaker is installed in hallways, offices, supermarket systems, etc.

Speaker line: This line of speakers is installed in public areas with high noise levels such as parking lots, basements, factories. Or used for public address system outdoors like parks because they won't be affected by the weather.

Popular public address systems today

On the market today, there are 2 systems notification sound is chosen and commonly used that is Bosch sound , and Toa sound.

TOA Public Address System

Toa is a famous brand with equipment for announcement purposes. Often used for conference rooms, seminars, public. Therefore, this is definitely a good choice for sound systems used for large spaces.

The advantage of Toa public address system is that it operates extremely stably. The equipment inside the system is very durable. The sound quality that Toa sound system brings is excellent and clear. And they are also suitable for both announcements and background music. Therefore, Toa sound system is the perfect solution for sound.

Bosch brand

Bosch is a name that is not inferior to Toa in terms of public address sound solutions. Bosch public address has high stability. And the price is very reasonable.

Bosch sound supports users with many features and has the ability to easily and accurately announce. Even when transmitting over long distances thanks to the quality wiring system. Therefore, Bosch sound systems are one of the most widely used systems today.

Things to note when installing public address systems

In fact, to install a sound system To ensure that the public meets the standards and produces the best sound quality, we need to pay attention to the following issues:

Choosing the right type of speaker and location: This note is very important because it directly affects the sound quality. And meets the purpose of each public address systemSpecifically, for places with a lot of noise such as parking lots, hospitals, etc., you should use compression speakers. Or for halls, you can install box speakers on the corner of the wall, etc.

Choosing background music is also very important. Depending on the different spaces, you must know how to choose the appropriate background music. Pay attention to the volume to suit the listener, creating the most comfortable and relaxing feeling possible.

With speakers belonging to the same area in the sound system. Must be emitted from the same sound source. To minimize the case of the same area having many mixed sounds. Causing discomfort to the listener.

The transmission of audio signals is difficult to limit from interference. Therefore, minimizing the impact of interference is very important. To ensure the quality of the audio signal.

Address for installation of complete public address system, best price

Phuc Truong is a unit specializing in providing equipment public address system All imported equipment here meets quality standards with full CO and CQ documents.

All equipment systems are tested through many standard steps before installation. Equipment is warranted for 12 - 36 months, 1 for 1 exchange up to 60 days in case of error.

In addition, we also have a team of highly specialized consultants. Technical staff with many years of experience and well-trained. Will help customers have satisfactory products at the most reasonable prices. Next proaudio is a reliable place for you to place your trust when buying.