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The concept of stereo sound.
Stereo sound, as the name suggests, refers to sound with a three-dimensional sense.
First of all, it is a geometric concept that refers to something that occupies a place in three-dimensional space. Because the sound source has a definite spatial position, and the sound has a definite direction**, people's hearing has the ability to discern the direction of the sound source. Especially when multiple sound sources are emitting sound at the same time, people can auditorically perceive the location of each sound source in space.
In this sense, everything that nature makes is stereo. Such as thunder, trains, gunshots, etc.
When we hear the sounds directly in these three-dimensional spaces, we can feel not only the intensity, pitch and timbre of the sounds, but also their orientation and layering. This kind of sound, which people directly hear, has spatial distribution characteristics such as azimuth hierarchy, is called stereo sound in nature.
Secondly, the sound produced by nature is stereo, but if we record, amplify, etc., and then play back these stereo sounds, all the sound is emitted from one speaker, and this reproduction sound (compared to the original sound source) is not stereotyped. At this point, the original sense of space, especially the spatial distribution of sound clusters, is lost because all kinds of sounds are coming from the same speaker. This replay is claimed to be monophonic.
If the entire system from recording to playback can restore the original sense of space to a certain extent (it is impossible to restore it completely), then this kind of reproduction sound with a certain degree of spatial distribution characteristics such as azimuth hierarchy is called stereo sound in sound technology.
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Amplifier bar, as the name suggests, just sounds like a real person singing.
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Hello Kiss is happy to answer this question for you. The use of stereo wired headphones is to insert the connector of the headset into the headphone interface of the mobile phone, open the mobile phone **, you can hear the sound The headset is a pair of conversion units, it accepts the telecommunication signal from the media shield or receiver, and converts it into audible sound waves by using speakers close to the ear. The headphones can be separated from the **** device, and can be connected with only one plug, so that you can listen to the sound alone without affecting others; It can also isolate the sound of the surrounding environment, which is very helpful for people who use it in noisy environments such as recording studios, bars, travel, sports, etc.
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Stereo headphones are relative to mono headphones, which cannot form stereo sound. Unlike mono headphones, which have a single driver, stereo headphones include two or more independent drivers that can produce sound in binaural stereo or multi-channel surround sound.
However, mono does not necessarily have only a single sound driver, because if the stereo headphones are not stereo when the waveform of the two channels is in the same phase, it is also a mono without a stereo effect, so the stereo is not necessarily stereo.
Stereo refers to sound that has a three-dimensional sense, for example, the sense of orientation and distribution of each sound source. The human ear has the ability to distinguish the range of sound sources, for example, if there are multiple sound sources at the same time, the human ear can perceive the location distribution of each sound source in space by hearing, so to speak, all sounds produced by nature are stereo.
Stereo headphones are the use of this characteristic of the human ear, as early as the beginning of the recording process, the use of two or more microphones, through different positions to pick up the sound, until the recording, **, Zhishen amplification to push the headphones, all use two or more independent sound channels, so the sound emitted by the headphones, can maintain a considerable degree of sense of orientation and distribution during the recording scene.
Stereo headphones are divided into earbuds and headsets, both of which have the difference between the left and right channels, and cannot be used interchangeably, otherwise it will directly affect the fidelity of the sound source and the resolution of the frequency of the sound source.
Mono can only ** one channel of the song (generally the left channel), and stereo is two-channel, can hear the sound of the left and right channels synthesized, human ears will not be able to distinguish from which direction it comes, so it is called stereo.
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