(Dolby Digital AC-3) is a new generation of home theater multi-channel digital audio system developed by Dolby. The Dolby Pro Logic System is an analog system. Its four channels are decomposed from the two channels after encoding, so it is inevitable that there is a disadvantage of poor resolution, low signal-to-noise ratio, lack of stereoscopic effect on surround sound, and narrow frequency band of surround sound. AC (Audio Coding) refers to digital audio coding, which abandons analog technology and uses a new digital technology.
Dolby AC-3 FeaturesThe surround sound system provided by Dolby Digital AC-3 consists of five full frequency domain channels plus one subwoofer channel, so it is called 5.1 channels. The five channels include the front "left channel", "center channel", "right channel", rear "left surround channel" and "right surround channel". The frequency range of these channels is 3-20000Hz for full frequency domain response. The sixth channel, the subwoofer, contains some extra bass information, making some scenes such as explosions, percussive sounds, etc. better. Since the frequency response of this channel is 3-120 Hz, it is called ".1" channel.
Dolby Digital AC-3 is a coding system multi-channel surround sound developed based on the feeling. It divides the frequency of each kind of sound into many narrow frequency bands according to the auditory characteristics of the human ear. In the encoding process, it analyzes according to the principle of acoustic psychology, retains effective audio, deletes the multi-made signal and various noise frequencies. To make the reproduced sound more pure and the separation is extremely high.
The Dolby Digital AC-3 system can be used with front left and right speakers. The center speaker produces a very deep and well-defined sound field. It is widely used with two rear or side surround speakers and subwoofers. The sound field, and the information of the six channels are all digitized during the production and restoration process, and the information loss is small. The full range of details is very rich, with true stereo.
Dolby Digital AC-3 has good compatibility, in addition to its own decoding, it can also provide Dolby Pro Logic decoding services. As a result, Dolby Pro Logic software, which is currently in production, can be reproduced using the Dolby Digital AC-3 system. Because the coding of the Dolby Digital AC-3 system is very flexible, it has many formats. It is currently used in the United States as a high definition television (HDTV) audio system, and the latest DVD player also includes the Dolby Digital AC-3. Therefore, the Dolby AC-3 surround sound system may be a promising technology.
We have experience and skill to support customers to tooling for their required waterproof connectors, like IP68 series,micro fit connectors. Etop wire assemblies for various industries have been highly recognized by all the customers and widely used for automobiles, electrical and mechanical, medical industry and electrical equipemnts, etc. Products like, wire harness for car audio, power seat, rear-view mirror, POS ATM, Diesel valve Cover gasket fit, elevator, game machine, medical equipment, computer, etc.
JST Connector,Molex Connector, Multi-Contact Connector, Micro Fit Connectors
ETOP WIREHARNESS LIMITED , https://www.oemwireharness.com