Now, many audio refitters and audiophiles will use home audio as the reference object for evaluation. In fact, this is a good thing. The sound field positioning and music reproduction of home audio are indeed the goals pursued by car audio, but in a small space of the car The on-site sound effects produced are by no means comparable to ordinary home audio.
One: Compared with ordinary rooms, the volume of the carriage is only a few tenths. For example, Guangzhou Honda Camry's 08 200E cabin space is less than one-twentieth of the volume of the 20-square-meter audiovisual room. Because the space is small, the distance between the person and the speaker is quite close, and the energy of the sound is attenuated in logarithmic times with the increase of the frequency. Yes, but you can feel it at close range in the car:
Second: The position of the speaker of the car audio system is very asymmetric to the position of the listener, while the room listening is basically symmetrical to the position of the listener, and the installation space and position are also restricted, so in terms of listening sense The sound field will be biased towards the speaker closer to the listener, and the positioning and presence of the audio image will be relatively poor.
Third: The sound absorption characteristics in the car are also different. The absorption of sound by various materials is different, and the absorption of each frequency by the same material is also different. Therefore, due to the different materials of interior decorations and seats, it will have a certain impact on the sound effect. The decoration in the general car, the skin material such as the seat, roof and floor are cloth and carpet, the inside uses synthetic leather, as well as the listener, doors and windows, etc., in the middle and high frequency will form more complex sound absorption characteristics, in The mid-range and high-frequency sounds will be stronger, so the softer mid-range and high-frequency music will not easily make people irritable and tired.
Fourth: Vibration sounds, brake sounds, engine sounds, etc. when the car is driving, will have an adverse effect on the listening effect of the audio. Therefore, the sound quality effect is deteriorated. If the sound reproduction performance of the speaker itself is relatively poor, then the music will definitely not be heard. Based on the above situation, the sound of car speakers, especially mid-high frequency speakers, must be full, soft and delicate. Otherwise, it can only be a good-looking but unusable decoration.
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