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Notebook sound card and speakers

2021-04-16 77
Notebook sound card: Any accessories on a laptop computer must be restricted in terms of size and power consumption. As one of the standard accessories of the current computer, the sound card cannot be separated from this rule. In order to effectively reduce the volume and power consumption of the whole machine, almost The sound card on all laptops is an onboard soft sound card.

The biggest difference between a soft sound card and a hardware sound card is the lack of a digital audio processing unit. Digital audio decoding is completely dependent on the CPU in the same way as software operations. Therefore, the CPU occupancy rate of using a soft sound card is obviously higher than that of an independent hardware sound card. With the continuous increase of the CPU frequency, the CPU burden caused by the soft sound card in the P4-M and above machines is not very important. The problem is, because the integration of the sound card effectively reduces the area of the motherboard, it creates conditions for the design of notebook computers to be smaller and thinner. Since the hardware is integrated in the chipset, fewer circuits can be used to reduce the power loss during signal transmission, so Using an integrated sound card is more power-efficient than using an independent sound card.


Notebook sound card and speakers


Notebook speaker: It is the sound unit of a notebook. Generally, the notebook is equipped with a simple mono speaker. It is located in the lower right corner of the wrist rest of the notebook. Since the direction of the speaker is facing downwards, the sound wave will bounce through the desktop. The human ear sounds very small and muffled.

Toshiba notebook is one of the few manufacturers that use high-quality speakers. Its sound card uses the sound card of the famous Japanese manufacturer YAMAHA, and the effect is absolutely top-notch. The Harman/Kardon subwoofer used at the bottom is also very contributory, especially the design position of the Toshiba speaker, which uses a vertical speaker, cleverly placed the speaker on both sides of the notebook's screen shaft, and uses a metal diaphragm for mid- and high-frequency. Speaker, a paper cone woofer is installed at the bottom of the machine. The advantage of designing the speaker near the screen hinge is that even if the screen is turned off to play music, there will be no sound quality degradation. A good scattering angle can be obtained at any time, and its effect can be maximized. In addition, HP notebooks use the veteran audio manufacturer JBL speaker unit. The design adopts airtight aluminum foil and glue combined with the cabinet to form a sealed speaker, and uses a very thin speaker unit, which has a very good sound effect.
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