Half a century of shock, revealing BOSE car audio technology

Speaking of BOSE sound, this is a sound brand that most people will not be unfamiliar with. Since its founding in 1964, it has been a full 50 years of history. Looking back at the history of this half century, BOSE has developed a number of proud technologies in the field of sound.

Mr. Amar G. Bose, born in 1929, taught at the Massachusetts Institute of Technology (MIT) a Ph.D. in electrical engineering. He taught at the school for two years. In 1964, he bought a pair of stereos. He was disappointed and decided to DIY himself. Founded BOSE, a company specializing in audio technology, known for its speakers, noise reduction technology and car audio system technology. Amar G. Bose, founder of BOSE Sound, died on July 12, 2013 at the age of 83.
Mr. BOSE's life has been dedicated to his passionate career, and he has changed the lives of many people. In 2011, he donated a majority of BOSE's equity to MIT, which receives funds from the stocks each year to support teaching and research. Regardless of the evaluation of BOSE's audio technology, let us pay tribute to his own contribution to the audio industry, teaching and research.

Regarding car audio, BOSE first cooperated with General Motors in 1982 to develop car audio systems for its Cadillac models. Since then, BOSE has also developed car audio systems for Audi, Infiniti, Porsche, Nissan and other models. It can be said that BOSE has extremely rich experience in car audio.

As one of the world's first speaker manufacturers, BOSE has created countless innovative products and technology invention patents for consumers, and has won numerous awards. Today, whether at home, in the car, on the road or in public places, BOSE products have undoubtedly become a symbol of fashion and fashion.

BOSE sound analysis

BOSE has been focusing on audio for more than half a century. No matter in the personal audio field or in the car audio, there are many praised technologies. Below we will give you an analysis of BOSE's latest audio technology.
·The key to the original sound reproduction - the speaker

The speaker works by converting electrical signals into acoustic signals. It is also very simple in structure, mainly consisting of three parts: magnet, coil and 'paper cone. How did it make a sound? The electromagnetic energy passes through the electromagnetic effect, causing the cone or diaphragm to vibrate and resonate with the surrounding air to make a sound. The size of the sound is actually by changing the current, and the cone acts to amplify the sound.
·Passive dual mode resonance technology

This is a new study by BOSE and they have applied it to the new SoundLink Mini Bluetooth speaker. The benefit of this technology is that it allows smaller speakers to produce richer, fuller bass and a wider range. In addition to being used in personal audio systems, this technology is also available on the Red Flag L9 and L7 models.
·Near field speaker
What is a "near field speaker"? Simply speaking, it is the acoustic characteristics of speakers that are very close to the human ear. This research was first applied to the commercial product Auditioner computer voice simulation audition system. Then in 1997, Apple asked BOSE to customize the sound system for the 20th anniversary edition of the Mac.

BOSE applies this technology to the car, placing the speakers on either side of the front seat headrest or on either side of the shoulder to create a unique sound field for the front passengers. At present, Cadillac XTS, Infiniti Q70L, Infiniti Q60 and other models are equipped with shoulder or headrest speakers.
·AudioPilot noise compensation technology
This is one of BOSE's classic innovations. It uses a microphone installed in the car to monitor the noise level inside the car and automatically adjust the volume of the music covered by the noise to compensate for the noise generated by the car while driving and from outside the car. The impact of environmental noise.

At that time, BOSE was tailoring the sound system for the 1984 Corvette. All the sound systems at the time were analog sounds and there was no digital signal processing technology. But BOSE created a complete analog circuit set to monitor the noise level inside the car and automatically adjust the volume and pitch of the sound. However, due to the large and complex size of this analog circuit group, it was not implemented in the 1984 Corvette. Until 1997, digital signal processing technology has become powerful enough and operating costs have been greatly reduced, and noise compensation technology has been widely used in car audio systems.

BOSE car audio

BOSE not only has many excellent products in the field of personal audio and home audio, but also has the same technology and technology in car audio systems. For example, BOSE is a 5.1 surround sound system tailored for the Audi Q3. We actually listened to this sound system.

·5.1 Surround Sound System

BOSE has designed an advanced three-way speaker layout for the front seats, where the high, medium and low frequencies are covered by different speakers. This fine speaker layout delivers a clear, high-pitched, penetrating midrange. And the deep bass, even when the volume reaches the maximum, the sound will not be distorted.

Each channel audio signal is delivered to a specially selected speaker combination with the CenterPoint 2 signal, creating a 360° surround sound field anywhere in the car. The high school bass is covered by different speakers, and the sound field is immersive. The sounds of the three frequencies are very full and will not make people feel stiff.
• New generation Studio on Wheels sound system
In addition to Audi, Infiniti also has extensive cooperation with BOSE. In fact, they established a cooperative relationship as early as 1989. Today, all Infiniti models are equipped with a BOSE sound system. The new generation of Studio on Wheels sound system is the first to be used in the Infiniti Q50 sedan.

In fact, the most important part of this sound system is advanced sound field positioning technology. The feature of this technology is to restore the real sound field effect. For example, the human voice is in the middle position, and the sound of the instrument is on the left and right sides, just like listening to songs at the music festival. Combined with digital signal processing and custom equalization technology, advanced sound field positioning technology can achieve a wide sound field and accurate sound image.

I believe that after reading this article, I have a certain understanding of the technology of BOSE sound. In fact, in today's increasingly technological development, car audio and personal audio have made great progress, BOSE audio company is also constantly developing. Mr. BOSE not only changed the car audio, but also changed our life, so that the special private space of the car has been better utilized, which has brought more fun to our car life.

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