Advantages of portable LED lights

LED uses low-voltage DC power supply (AC can be rectified into DC), and the power supply voltage is between 6~24V, which varies from product to product. In short, it uses a DC power supply that is safer than a high-voltage power supply, and is especially suitable for homes and public places.

How the sound was invented？

In 1915, there was an American named E. S. Pridham put a telephone listener of the time on a horn that played record audio, and when the sound could be heard by a group of people celebrating Christmas in San Francisco, electroacoustics was born. When the First World War ended, at the inauguration of President Harding of the United States, the Bell Company of the United States connected the dynamic receiver of the telephone to the horn of the record player at the time, and the sound was transmitted to watch the inauguration of the president. A large group of people at the ceremony produced a lot of professional sound research and development of the science of sound reinforcement engineering.

The research background of Bluetooth speakers and the significance of research

In short, there are no technical obstacles to the realization of an application model of Bluetooth technology-Bluetooth speakers. this topicAimed at the realization of audio transmission and playback of current affairs, on top of this, a more comprehensive discussion of the protocol specifications of Bluetooth communication technologyAnd the methods and steps of Bluetooth application development, and mastered the new technology of Bluetooth wireless access. And further for the futureIn-depth study of Bluetooth technology and development of Bluetooth products have laid a solid foundation.

How to solve the delay problem in speaker debugging?

Usually, the sound reinforcement of outdoor bluetooth speaker is often more than two or two sets of outdoor bluetooth speakers. Therefore, when there are outdoor bluetooth speakers in the third or fourth group or more, due to the different positions of the outdoor bluetooth speakers in each group, we need to combine the outdoor bluetooth speakers with auxiliary (side fill, front fill, and delay tower, etc.) with the main amplifier. While the delay difference between the sound boxes is compensated, whether the phase curve is the same is also a problem that we need to consider.

smart speaker

he smart speaker is an upgraded product of a speaker. It is a tool for home consumers to use voice to surf the Internet, such as on-demand songs, online shopping, or understanding the weather forecast. It can also control smart home devices, such as opening curtains and setting refrigerators. Temperature, let the water heater heat up in advance, etc.

Mini Fan

What are the laws and effects in audio speaker technology?

The difference between tone in psychology and scale in music is that the former is the tone of pure tones, while the latter is the tone of composite sounds such as music. The pitch of a composite sound is not only a frequency analysis, but also a function of the auditory nervous system, which is affected by the listener's listening experience and learning.

What is the soundproof method of home audio-visual room?

The measures that should be taken to decorate the home listening room include sound insulation and sound absorption. The objects are invisible sounds, which must be quite difficult.

The advantages of Bluetooth headsets

In recent years, Bluetooth headsets have also become popular. , Bluetooth products, an optical technology product with a long history, has given new life to the intelligent era.

Bluetooth headset advantages

In recent years, Bluetooth headsets have also become popular. , Bluetooth products, an optical technology product with a long history, has given new life to the intelligent era.

How to choose the speaker equipment for the night scene?

The same is the entertainment night club, and their investment can be very different. This difference mainly comes from the type, quantity and function of the equipment used.

Smart audio glasses are