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What are the main parameters of a good speaker?

What are the main parameters of a good speaker?

1. Rated impedance. The common rated impedance of the speaker is 4 ohms, 6 ohms, 8 ohms, 16 ohms, etc. The impedance of the connected horn is mostly in the range of 4-16 ohms, and the impedance of the horn should be selected according to the requirements of the amplifier in use. 2. Effective frequency range. The wider the sound pressure frequency range of the speaker, the better the frequency characteristics. 3. Frequency divider. The performance of three frequency speakers should generally be better than two frequency speakers. Because the three-division adds a mid-range speaker unit, it can make the midrange more mellow. (4) Sensitivity. A speaker with a sensitivity of 90dB is sufficient to meet the needs of home audio. 5. The caliber of the speaker. bass

17

2021

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09

Do speakers have to burn?

Do speakers have to burn?

In the first stage, it is only a warm-up stage, and it is not necessary to select the tracks in the reference tracks recommend above. As long as you use a relatively soothing song like "guess your heart" to play normally at about 30% of the normal volume, the playing time is generally 10 to 12 hours. After the warm-up of the first stage, even if it enters the formal stage of the praise machine, there are clear standards for the selection of music types and styles, and the adjustment of volume and playing time. First of all, from the recommend reference tracks of the Senior high school and low three types of audio, respectively, choose Liangzhu, Ferry and Xian Yun Guhe as the praise machine tracks. Use

17

2021

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09

Introduction of Bluetooth and Bluetooth speakers

Introduction of Bluetooth and Bluetooth speakers

Bluetooth speaker refers to the built-in Bluetooth chip, Bluetooth connection to replace the traditional wire connection of audio equipment, through the mobile phone tablet computer and notebook and other Bluetooth playback equipment connection, to achieve the purpose of convenient and fast. At present, Bluetooth speakers are mainly portable speakers, and their appearance is generally small and portable. Bluetooth speaker technology has gradually been valued and accepted by consumers due to its convenient characteristics. Most of the common Bluetooth speakers on the market are mono speakers (single speaker unit). At the same time, some multi-channel speakers (two or more speaker units) with excellent sound quality have emerged. Bluetooth speaker is the application of Bluetooth technology in traditional digital and multi

17

2021

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09

What are the specifications of the Bluetooth speaker

What are the specifications of the Bluetooth speaker

There are many Bluetooth headset products on the market, while Bluetooth speakers are relatively few. The so-called Bluetooth speaker, in fact, refers to rely on the Bluetooth transmission protocol as a carrier for data transmission speakers, because most of the mobile devices (mobile phones, laptops, tablets) are equipped with Bluetooth chip, do not need data line or audio line connection can be quickly identified, simple operation, convenient connection. Judging from the sound quality performance, the effective audio data amount of CD sound quality data (44.1KHz sampling rate and 16bit sampling accuracy) is about 1.4Mbit. To transmit CD sound quality music signals, the transmission rate only needs to be kept at 2Mbi.

17

2021

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09

Bluetooth speaker purchase

Bluetooth speaker purchase

Although the compatibility of Bluetooth speakers basically supports existing Bluetooth devices, it is still necessary to check whether your playback device supports Bluetooth before buying it. The transmission distance of the Bluetooth speaker is also a problem that everyone is more concerned about. The transmission distance of the Bluetooth speaker has nothing to do with the Bluetooth version, and mainly depends on the advanced level of technology. The standard transmission distance of the PowerClass2 is 10 meters; the upgraded PowerClass1 increases the transmission distance to 100 meters and provides a Hi-Fi stereo effect. Generally speaking, the distance between the mobile phone and the Bluetooth speaker is not too far, and the transmission is relatively safe.

17

2021

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09

Advantages of Bluetooth speaker

Advantages of Bluetooth speaker

Music can make people feel happy, and there are many forms of music playing. Bluetooth speaker is a carrier that can play music, and its development speed is also very fast. In order to make hearing have a better enjoyment, people have developed such a product, which can make music playing more convenient. Many brands in the market, such as Aitemingke, are selling Bluetooth speakers, today we will find out what advantages it has and attract everyone's choice? 1. The operation is simpler. Bluetooth is an instant technology. It does not need to have a fixed facility as a carrier, and it does not need additional wires to connect,

17

2021

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09

Two Operation Schemes of Digital Audio Signal Compression Technology

Two Operation Schemes of Digital Audio Signal Compression Technology

After the audio signal is digitally encoded, one of the problems facing is the problem of mass data storage and transmission. Digital audio signal compression technology is a very important part of digital television broadcasting system. Compression efficiency and compression quality directly affect the transmission efficiency of digital television broadcasting and the transmission quality of audio and video. In this paper, the digital audio compression technology to do a shallow analysis. Compared with analog signals, digital signals have obvious advantages, but digital signals also have their own corresponding disadvantages, that is, the demand for storage capacity and the increase of channel capacity requirements during transmission. Audio compression technology refers to the original digital audio signal.

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2018

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04

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