Multimedia speakers is how it works

Computer sound files through the sound card, the digital audio signal into an analog audio signal and then its output port, then the audio signal level is weak, usually only a few hundred millivolts, Multimedia Speaker can push the horn work properly. And a working voltage of the speaker driver generally require a voltage of several volts, then a small signal needs to be amplified by the sound output from the amplifier (known as amplifier), the amplified audio signal to the audio speaker driver can convert electrical signals into sound waves a.
And now the latest  Wooden Computer Speaker USB sound card may not be required, it introduces a digital audio signal output of the computer through the USB interface, and USB multimedia speakers this signal through a dedicated internal USB IC chip converts quasi audio signal in order to achieve substituted card function.

After reading knowledge Daquan is a master of multimedia speakers

Since the development of the computer from the professional to civilian use. From a large to miniature , from the ordinary to multimedia, computers are getting close to people's lives , but it also made ​​the computer more and more demands. Especially the emergence of  Wooden Computer Speaker and computer closer to the distance of people's lives , but more people want to be able to play multimedia computers which potentially other functions. Today, this requirement has increasingly become a reality. In addition to the design can be achieved with a computer , computing, text, and image processing and other common functions, but also to achieve a common household feature TV , telephone, fax , VCD, DVD, radio , stereo equipment, information equipment , and even household appliances to achieve the original no features, such as Internet access. To achieve these functions , the computer must have a function of the man-machine dialogue, information , who is to receive the main information received through the eyes of visual information and auditory information received through the ear . It is through the monitor and the computer to provide people with visual information and by speakers to provide people with auditory information . Standing in another perspective, if people put CPU ratio heart of the computer , then the monitor is the computer 's eyes , and the mouth is the computer  Multimedia Speaker , left the speakers, multimedia computer will lose the " multimedia features" , so in a multimedia computer, multimedia speakers and monitors have the same important position , they are an important window with people to exchange information .

TV audio equipment

Television, the picture and sound are organically combined. Therefore, TV production shall also include television sound production. Used by television sound production equipment, we call it a sound equipment, mainly including: microphone, tuning up the console and various signal processing equipment, a tape recorder or tape (headphones) and monitoring amplifier, speaker, etc.  

The types of multimedia speaker

The types of  Multimedia Speaker  The types of multimedia speaker according to the different classification has different style. Let's look at some of the common classification: according to the case material differs character, common plastic and wooden box. Points, according to the amount of speaker unit has a single speaker unit (full band units) and two (or three) speaker unit (two or three points frequency). According to the channel number is 2.0 type (dual channel stereo), 2.1 (double track plus - mega bass sound channel), 4.1 (four channels plus shearing section.at heavy bass sound channel), 5.1 (five channels - mega bass sound channel) speakers. The horn unit structure, common sperker, plane sperker, aluminum with single speaker unit, etc. Note: ordinary speaker unit and can according to different vibration film (paper cone) of materials, such as bass unit has the paper cone, wool basin basin, polypropylene, PVC, metal?? Materials, such as high unit has a metal ball, soft membrane ball?? According to the computer output points, have a common interface (sound card output) speaker and USB speakers. Points according to the power amplifier, both inside and outside, have active speaker (built-in amplifier) is the most common and passive speakers, amplifier external, very fancy or have special requirements to use. According to the price points, generally considered the price of each (excluding mega bass, similarly hereinafter) in 200 yuan of the following for ordinary speakers, the price is in 200 yuan - 200 yuan between each pair of for intermediate products, the price is in 800 yuan or more generally for a high grade product (of course also cannot absolutely such points, also look at the brand and the actual performance). According to purpose, general purpose speakers, recreational use of speakers (games, VCD, DVD, and music appreciation) and professional use speakers (HIFI fever, music appreciation). 

The types of multimedia speaker

The types of multimedia speaker The types of multimedia speaker according to the different classification has different style. Let's look at some of the common classification: according to the case material differs character, common plastic and wooden box. Points, according to the amount of speaker unit has a single speaker unit (full band units) and two (or three) speaker unit (two or three points frequency). According to the channel number is 2.0 type (dual channel stereo), 2.1 (double track plus - mega bass sound channel), 4.1 (four channels plus shearing section.at heavy bass sound channel), 5.1 (five channels - mega bass sound channel) speakers. The horn unit structure, common sperker, plane sperker, aluminum with single speaker unit, etc. Note: ordinary speaker unit and can according to different vibration film (paper cone) of materials, such as bass unit has the paper cone, wool basin basin, polypropylene, PVC, metal?? Materials, such as high unit has a metal ball, soft membrane ball?? According to the computer output points, have a common interface (sound card output) speaker and USB speakers. Points according to the power amplifier, both inside and outside, have active speaker (built-in amplifier) is the most common and passive speakers, amplifier external, very fancy or have special requirements to use. According to the price points, generally considered the price of each (excluding mega bass, similarly hereinafter) in 200 yuan of the following for ordinary speakers, the price is in 200 yuan - 200 yuan between each pair of for intermediate products, the price is in 800 yuan or more generally for a high grade product (of course also cannot absolutely such points, also look at the brand and the actual performance). According to purpose, general purpose speakers, recreational use of speakers (games, VCD, DVD, and music appreciation) and professional use speakers (HIFI fever, music appreciation). 

A portable computer speaker mounting structure

A portable computer Multimedia Speaker  mounting structure, comprising: forming a lower portion of the body shape, a bottom provided with a guide sleeve and the positioning pin of the bottom case; upper portion of a bottom case, the upper body portion is formed in the shape of the keyboard panel; at the bottom spatial position and the front end of the keyboard panel of the box is formed through the guide sleeve and has a locating pin fixed to this speaker. The bottom surface of the bottom case is provided with projecting within the main body section of the actuator mounting portion, a speaker installed in the space defined by the bottom case, the keyboard panel and a driver mounting portion, a spacer disposed speaker keyboard panel and a driver mounting portion side distance. The present invention can be cut from the speaker unit to generate sound vibrations transmitted to the surrounding parts inside the portable  Portable Computer Speaker , so as not to interfere with the operation of the peripheral components, without the need for speaker box is fixed to the outside of the structure, and thus make the speaker smaller, the maximum to reduce the space required for the installation, to further improve the performance of the speaker.