Every day we always have to listen to the sound resounded not ever from the surroundings and you know, the natural sound, the noise that has completely changed the face of the current digital era today. To bad it like? Invited to explore the "witch sound" Geoff Martin at Bang & Olufsen offline.

In the professional world, people called Martin's "tonmeister" and according to him, it is a combination of "1 music producer and recording engineer." Actually concept tonmeister starting 1960 in Germany and the only way to become a man such as vocational training.

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Geoff Martin - tonmeister at Bang & Olufsen

As a tonmeister at Bang & Olufsen, Martin helped the company design many speakers and advanced audio system. However, his current work is outlined orientations for the future and determine what products users would expect in the next 10 years and beyond.

To do that, he must examine whether sound environment is changing and how the environment will change the relationship between people with noise and sound like?

The difference between sound and noise

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Pictures wave of spurious noise - sound that you hear in the radio station, as well as a full signal but does not contain useful information

Audio (Sound) and noise (noise) is two different concepts. According to Martin, from noise to indicate the sound often undesirable, such as in a dazzling sound recordings. Sometimes, the noise was so that only the waveform of the sound that it does not contain useful information, such as radio noise - the sound of the distinctive buzzer emits the distinctive always open when you listen to the radio.

(Radio waves used to transmit sound, such as your favorite song, by encrypting audio form wave patterns. Noise is defective sound model and it is also a signal complete).

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Colors of noise

For sound engineers, noise has many different colors and it depends on the characteristics of its spectrum. A literally every noise transmitted to the human ear, the brain send and create images of different textures of sound, corresponding to the image that users will assign the corresponding color.

The color is white noise, pink, red, purple, blue and even black media. However, this noise is not easy to distinguish those who have not yet been exercised. Each sound has a separate sign, indicating all the frequencies that constitute it. (Most sounds are a complex mixture of mechanical vibration with different frequencies.)

Pink Noise: close friend of the speaker makers!

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Chart of white noise frequency (left) and pink noise (right)

For tonmeister, noise is "close friend" of them. To test the design of a speaker, Martin used "pink noise". It is similar to white noise - sound noise beads which we often hear in radio, in television channels and no signal which contains the frequencies within the scope of hearing people (20 Hz to 20 kHz).

Unlike white noise, pink noise is not completely random. It lies in the middle of the rigid order and chaos altogether. Pink noise pattern visible through heart rate, DNA, traffic volume, in most electronic devices, and in the music tone.

Therefore, the "Pink Noise is used to test samples of audio equipment. It has similar spectral content of music but follow the pattern repeat (less variation) than using the post the singers sing. " But noise is a nuisance to most users. Its unpleasantness like light pollution, making it impossible to see the stars at night.

Martin said: "It's hard to get to a place where everything you hear are from nature. Even if you go to a wild forest, you can still hear the jets overhead . " Therefore, when entering the modern building, the first thing that you will hear (if noticed) is the cry of the air conditioning and lights. We always have the same frequency: 60Hz in North America, approximately 50 Hz in Europe and it is equivalent to Bb chord (Bb).

In fact, Martin has used this argument to explain why a musician living in Vancouver has always written songs in providing Bb. But now, the nature of the common noise is changing and according to Martin, "We are recognizing the boundaries between what we think is true and the truth the truth ever more fragile."

All of these sound fields are designed for us rather than randomly generated again. These sounds include the sound artificial, created with care, essential to to match what people want to hear. To do that, one must pay attention to the sound of a hair dryer, word phone ringtones, voice unlock, lock screen, the exhaust vehicles, ... ref like sound when you close car back, you think the cars are the same? If in doubt, always headache firms seeking to amend it sounds easier to hear.

The future of the recording industry: Headphones or speakers? Everything has its price!

As noted above, the way we listen to music has been and will always change. Within 10-15 years, where most of them are mainly music from the speakers. Now, the sport earphones were increasingly popular (foreign circumstances). This device allows the user can receive calls and music from your smartphone, from their smart devices. Moreover, it also has anti-noise technology initiative, helps to remove the sound from the surrounding environment to concentrate better player.

However, the convenience that must offs with a price: no songs have also been recorded, designed for headsets. Imagine what will happen when you watch a film of high quality, designed for the big screen on a small TV set. The price to pay is that you will lose more. Likewise in sound, you will not fully enjoy the music was designed for the speakers through headphones.

Therefore, Martin said it would gradually make changes in the recording industry. Instead of collecting the music in conventional microphones, the studio must be switched to a microphone to record sound to recreate the human mind when they hear through headphones. But the paradox here is what happens when you use it to play the recordings on the speaker or a surround sound system? Did you accept to watch a drama with big screen projection in theaters?

Martin said: "If you have a recording is made for headphones, you'll lose a lot of information. Although our era not appear that, but it is a recognizable outlook , a world where more and more people sticking their lives with the headphones on his head. "