At this point, you have three choices:
To extend your Letasoft Sound Booster trial, the official method is to contact the developer directly. According to Letasoft's download page letasoft sound booster trial extension
He had the sound he needed, but he was trapped in a silent digital vacuum. He realized then that some boosters come with a different kind of noise—the sound of a shortcut catching up to you. At this point, you have three choices: To
I have been using the Letasoft Sound Booster trial for the past 14 days and have found it very helpful for [mention your use case, e.g., boosting low volume on my laptop speakers]. At this point
Widely considered the best free, open-source alternative for Windows. It boosts volume, bass, and overall audio quality without a trial expiration. Volume Master