When using a computer as a device for listening to music or watching movies, many users often encounter the fact that none of the known Windows operating systems is able to provide the highest quality sound in such a way that you can increase the volume without distortion. Of course, if we talk only about software players, there are no questions, since they have special functions for boosting bass or boosting the sound level.
But what if you need to increase the volume not only to play music or video, but also apply similar operations to system sounds or other programs? The best solution, it is believed, would be to install additional software in the form of a volume amplifier for Windows, which can make it possible to perform such an adjustment.
Windows sound problems
Indeed, in the Windows OS itself, you can't jump above a certain ceiling. However, in recent modifications there are enoughopportunities for experimentation. In the sound settings section, you can use the standard parameters that are located in the properties of the selected playback device.

On the Enhancements tab in a special block, you can enable the Bass Boost option or apply Loudness Equalization.
By moving to the spatial sound tab, you can also find the option to use a specially developed Microsoft technology called Windows Sonic, designed to improve the sound in headphones. Alas, you still won’t achieve a tangible increase in volume. Particular attention should be paid to the acoustic system used, since ordinary low-power speakers will not provide the desired quality and amplification, and to connect more powerful acoustics, you will need a professional sound card equipped with a preamp.
Sound Booster
Thus, you need to find the optimal application. But what? I would like to immediately note the fact that all kinds of free applets advertised on the Internet as programs that provide an increase in sound level up to 400-500 percent, by and large, are pure user fraud and do not give a tangible increase. But as one of the simplest, but quite interesting applications, we can offer a volume booster for Windows 7 and any other OS called Sound Booster.

The program is very simple, and all it does is that after installation it displays its own icon in the system tray. Yes, of course, the developers claim that it is possible to amplify the sound up to 500%, but in practice this does not happen. In addition, careless handling of excessive volume increase can adversely affect the speakers. However, if you need to make the sound louder, for example, when chatting in the same Skype program, this volume booster for Windows 7 can be used. But, as is already clear, do not overdo it!
Audio Amplifier: Volume Amplifier for Windows 7
Audio Amplifier can be recommended as another alternative application.

This application (Audio Volume Booster) is a kind of converter and converter of the audio signal in real time, and all the user's actions are only to set the desired percentage of increase in the output level.
Additional software
Some more volume boosters for Windows 7 can be recommended as more advanced programs.

For example, the Hear program is very interesting, although somewhat more difficult to set up. Also, the SRS Audio Sandbox application or its close analogue DFX Audio Enhancer looks pretty good.
But if you just need to increase the level of audio playback, use the simplest solution.

Install the AIMP player, go to the equalizer settings, turn on its use, set all frequencies to zero positions (default scheme), and then simply increase the level with the slider on the right until distortion appears! As soon as blockage appears, reduce the level - that's all!
Please note that some files originally recorded at minimum volume may sound completely different. If you have the time and desire, use converters or audio editors that support batch processing of files based on one selected template to bring your own collection to the desired look. Experts can recommend the AAMS (Auto Audio Mastering System) application, which, based on one track, can process other files based on the results of the analysis of the audio source.