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Bluetooth speaker solution
I believe that for the current young people, smartphones are already the most familiar digital entertainment products, and tablet computers are also very popular. These intelligent digital devices have brought a brand-new entertainment experience to users, and of course have brought brand-new changes to the use of many peripherals and related products.
Wireless listening was first proposed with the rise of smart digital products. Of course, it seems that wireless listening is not unfamiliar to us now, and the most widely used and most familiar wireless listening solution is our The Bluetooth-led way to listen with the Bluetooth capabilities found in both phones and tablets. In addition to Bluetooth headsets, the most widely used Bluetooth audio product is our protagonist today - Bluetooth speakers.
1.The relevant definition of Bluetooth speakers
1. Introduction to Bluetooth speakers
Bluetooth speakers refer to audio equipment with built-in Bluetooth chips, which use Bluetooth connections instead of traditional wire connections. By connecting with Bluetooth playback devices such as mobile phones, tablets, and notebooks, they achieve the purpose of convenience and speed. Bluetooth speakers are the application of Bluetooth technology to active speakers. Through this wireless transmission technology, the digital audio on mobile phones, tablets or PCs is transmitted to the speakers, so as to realize unfettered wireless music playback. Applying Bluetooth technology to traditional digital and multimedia speakers allows users to listen to music freely in various ways without being entangled by annoying wires. Common Bluetooth speakers on the market are mostly mono speakers (single speaker unit), but there are also some multi-channel speakers with excellent sound quality (two or more speaker units).
2. What is Bluetooth?
Bluetooth technology was proposed by a telecommunications company as an alternative to RS232 data lines. Literally, "Bluetooth" means blue teeth, yes, you guessed it! The original English name is also Bluetooth. The word "Bluetooth" comes from a certain king in ancient Northern Europe. The king often ate a certain fruit, so his teeth were stained with the color of the fruit. It is said that he ate blueberries. It is impossible to verify whether this is the case. Later, when naming this wireless technology, someone thought of using Bluetooth, the name. Bluetooth is a wireless transmission technology that can realize short-distance data exchange of many devices, such as our mobile phones. The biggest advantage of this technology is wireless transmission, and the other is short distance, so the transmission power does not need to be so large, and it also saves power.
2. The structural components of the bluetooth speaker solution
The standard Bluetooth speaker has a built-in Bluetooth receiving module, which is responsible for receiving the transmitted digital music signal, and then converts the digital signal into an analog signal through decoding, and then amplifies it by the audio amplifier, and finally drives the speaker to pronounce. Most Bluetooth speakers these days are portable, so a built-in rechargeable battery is necessary. Of course, some multi-functional Bluetooth speakers integrate functions such as radio and card playback, so there will be more built-in modules.
3. The technical principle of the bluetooth speaker solution
Passive unit: Also known as passive radiator, many Bluetooth speakers are equipped with this kind of speaker. This kind of speaker has no voice coil and magnet, and does not need power amplifier to drive. It just moves with the active speaker (in a closed box). In order to enhance the bass effect, it is necessary for Bluetooth speakers with small cabinets and small speakers.
Class D amplifier: Class D amplifier has the advantages of small size, low heat generation, high efficiency, and high power. electricity.
apt-x: Some Bluetooth speakers use this technology, which can improve the playback sound quality of Bluetooth audio. Do you want to see if it supports apt-x when buying a Bluetooth speaker? Not necessarily, because apt-x technology must also be supported by your mobile phone and other mobile devices to be effective. In addition, the quality of the Bluetooth speaker itself is also very important.
4.The advantages of the bluetooth speaker
Unlike other wireless speakers, Bluetooth speakers have their own unique characteristics.
1. Wide range of applications
Bluetooth technical specifications are unified globally, mobile phones, PDAs, wireless headsets, notebook computers, automobiles, medical equipment, computer peripherals and many other devices, as long as you have a Bluetooth adapter, you can easily connect to Bluetooth devices for data transmission or voice communication, widely popularized , good compatibility.
2. Easy to operate
Bluetooth technology is an instant technology, it does not require a fixed infrastructure, and it is easy to install and set up. It can be connected without cables.
3. Faster transmission speed
Compared with other methods such as infrared, the Bluetooth transmission protocol has obvious advantages in speed. The theoretical maximum speed of Bluetooth 4.0 reaches 24Mbps, and a faster speed can ensure higher sound quality, so that it has enough capacity to carry a higher bit rate. music.
4. Moderate transmission distance
The transmission distance of Bluetooth is generally within 10 meters, which is exactly the size of a room, and can transmit data across walls, which is very suitable for home use.
5. Market prospect of bluetooth speaker solution
Whether it is Bluetooth speakers or traditional speakers, multimedia speakers are moving towards miniaturization under the influence of mobile phones and tablets. After 2013, speaker brands became more confident in the market performance of small speakers. At present, the demand for real HiFi speakers in the market is not strong, which is not unrelated to the high cost of HiFi speaker system components. The speaker that most consumers need is louder volume, clear sound, and it is more attractive because of its compact size and beautiful and fashionable appearance.
Using mobile phones and tablets as sound sources has become an inevitable choice for many mainstream music lovers in 2013. Therefore, the matching small speakers have become the key considerations of many speaker brands. In the past, speaker brands may have spent a lot of energy on the research and development of sound quality. However, in 2013, speaker brands focused on how to combine speakers with mobile phones and tablets to become a fashionable and fun music system that can be carried at any time.
Compared with traditional speakers, bluetooth speakers are still recognized by consumers to a different degree, but at present, bluetooth speakers are being accepted by people, and more and more users are beginning to pay attention to bluetooth speaker products, especially for those who often go outdoors Events, travel, and friends who often drive. In addition, considering the family, small and exquisite furniture is the choice of many young people, and for these young user groups, the most convenient and fashionable way to use digital products is their favorite, saving them The comfort of the cable gives them a free way of listening, and it is also convenient for sharing music with friends. Bluetooth listening is undoubtedly a very good choice.
6. Comparison of wireless speakers: bluetooth speakers and wifi speakers
Bluetooth speakers are currently becoming a new growth point for multimedia speakers. Mobile phones are the main reason for the rapid development of Bluetooth speakers. Speakers For many consumers, sound quality is not the only thing they pursue, easy to carry, fun, easy to use, cheap and other aspects are the current requirements of many consumers for speakers. Speakers that can be used with mobile phones and tablet computers have good sound quality, which is the reason why Bluetooth speakers are popular.
In fact, in the field of wireless audio technology, wifi has also begun to emerge. Audio products based on wifi transmission have appeared. Wifi does have a greater advantage in transmission bandwidth, and our smart phone devices are also equipped with wifi functions. But the problem is that audio products based on wifi are not popular yet, and technically there are always problems of one kind or another.
On the other hand, Bluetooth wireless audio transmission is already a relatively mature technology, and the Bluetooth function that is also commonly used in smart devices has become the standard of audio transmission; in terms of efficiency, it is completely sufficient for the transmission of audio information, and it is also relatively stable. More importantly, Bluetooth connection is easier and more convenient to use than wifi connection. Although it is impossible to use the multi-point connection method of wifi audio, but for now, bluetooth audio is still the best. s Choice.
7. Suggestions on the purchase of brands of Bluetooth speakers
1. Speaker appearance and material
In addition to listening to music, Bluetooth speakers are also home decorations, so appearance is very important. You should also pay attention to the material of the Bluetooth speaker. Whether the shell is solid will also affect the sound reproduction. Relatively speaking, metal and wooden shells are better than plastic shells. In addition, the exterior decoration of some materials is easy to get dusty and difficult to clean.
2. Box volume, speaker size
Theoretically, the larger the cabinet and the larger the speaker diameter, the more conducive to sound reproduction. We can also see that this is true for products of the same brand, but it is not necessarily the case between different brands, such as the quality of the speaker, cabinet design, and sound. Tuning, etc. will affect the performance of the sound.
3. The sound performance of the audio
Like Hi-Fi products, the selection of Bluetooth speakers should also pay attention to the tri-band balance, and the sound under a certain volume must achieve a certain balance. The intermediate frequency of a compact Bluetooth speaker should be full, and it would be very good if it can achieve a sense of low frequency volume and extension. A slightly larger Bluetooth speaker can require more balanced tri-band, better extension of high-frequency and low-frequency, and sufficient volume of low-frequency. Generally speaking, Bluetooth speakers with good sound that are not stuffy and tasteful.
4. The Bluetooth transmission distance of the speaker
The transmission distance of Bluetooth speakers is also a concern for everyone. The transmission distance of the Bluetooth speaker has nothing to do with the Bluetooth version, but mainly depends on the advanced level of the technology. The standard transmission distance of PowerClass2 is 10 meters; while the upgraded PowerClass1 increases the transmission distance to 100 meters and provides Hi-Fi stereo effect. Generally speaking, the distance between the mobile phone and the Bluetooth speaker is not too far, and the safe transmission distance is about 10 meters. The Bluetooth speakers on the market all reach the 10-meter standard.
The above are the details of the bluetooth speaker solution introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have the functional development needs of Bluetooth speakers, Bluetooth headsets, Bluetooth speakers, smart speakers, and wifi speakers, you can trust us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and material prices as soon as possible.
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