How to adjust the sound of a laptop?

1. Click the mouse on the speaker (that is, the main volume) in the lower right corner of the computer desktop. You can adjust the volume.

2. Double-click the master volume to adjust other properties.

Method 2

1. Click Start-Control Panel under the desktop.

2. Click on the sound, voice and audio devices.

3. Click realtek high-pitched clear audio configuration, and adjust the environment, equalizer and moving path among five options: sound effect, mixer, audio I/O, microphone and 3D audio demonstration.

4. Click the portable media device to modify it. Portable media equipment: music and movie playing media with storage function, such as MP3- 1.

5. Click on the sound and audio device. You can adjust the device volume, speaker, microphone test and so on under five options: audio, voice, hardware, volume and sound.

6. Click Voice. You can adjust the speed of voice and audio output.

Sound card is also called sound card (called sound card in Hong Kong and Taiwan): Sound card is the most basic part of multimedia technology, and it is a kind of hardware to realize the mutual conversion between sound waves and digital signals.

The basic function of sound card is to convert the original sound signals of microphone, magnetic tape and CD-ROM drive, and output them to headphones, speakers, power amplifiers, tape recorders and other audio devices, or make musical instruments make beautiful sounds through MIDI.

Up to now, sound cards are mainly divided into three types of interfaces: board type, integrated type and external type to meet the needs of different users. These three types of products have their own advantages and disadvantages. Card products are the mainstay of today's market, and the products include

Covering low, medium and high grade, the price ranges from tens of yuan to thousands of yuan. The early board products were mostly ISA interfaces, which have been eliminated because of low bus bandwidth, single function and excessive system resources. PCI has replaced ISA interface as the mainstream at present. They have better performance and compatibility, support plug and play, and are easy to install and use.