Laptop speakers are rather small and tiny and don't produce acceptable levels of sound for a video or film that you are watching on them, or music you are playing on them.There are a variety of ways to make these speakers or the laptop in general sound better.

Speaker Settings

In your system tray or your system preferences menu, you can adjust settings to maximize the performance of your speakers installed in the computer itself. Make sure that the sound levels are right in the middle, between the left and right speaker, so that they are producing an equal amount of sound. Make sure the main volume slider is also turned up all the way. Also, the volume controls of whatever you are listening to or watching may be separate in each program you are using, be it a music player or a DVD player or a Web browser, so make sure those are turned all the way up as well.

Installing a Program

There are a few programs online that you can use to make your audio sound louder, lighter and better coming through the speakers on your laptop. Vloud is a program you can run mp3s through that will make everything sound better and louder and might solve your laptop sound problems. It is also free to use. DFX Audio Enhancer will make audio files better and cleaner to use as well, but this program costs money. Still there is only so much that can really be done with audio and small speakers, so these programs might not solve all of your problems with your laptop.

Purchase External Speakers

Almost all laptops have external speaker jacks where speakers can be plugged in. These speakers can be bought for a reasonable price these days and are worth every penny, as they rarely run out of phase, are difficult to blow out and produce incredibly high-quality sound, keeping you from ever having to use your laptop speakers in the first place. While this extra 100 to 300 dollars may seem like a lot at the beginning, just imagine how much more you'll be able to do with your laptop with quality speakers at your disposal.

Source:

Technize: Audio Louder on Computer

Consumer Search: Best Computer Speakers for Laptops