Sound Booster processes all audio being played in system and boosts it before it gets to the sound card. No need to buy external speakers for your laptop Thought of buying a set of speaker for 4/5(). The program does work as claimed (on my Acer Aspire), even in Windows 10 (Started using it in Win7, then Win) It did boost the sound volume on my laptop's speakers. ConsSubcategory: Audio Plugins. It's easy! Just click the free Letasoft Sound Booster download button at the top left of the page. Clicking this link will start the installer to download Letasoft Sound Booster free for Windows. Will this Letasoft Sound Booster download work on Windows? Yes! The free Letasoft Sound Booster download for PC works on most current Windows. Aug 07, · Sound Booster is useful if you want to increase the volume of your laptop speakers. The program is able to support a wide variety of applications, allowing you to increase the volume of your media player, web browser, games, or any other Windows software that plays sound.4/5(23).