This is a port of the famous Android audio mod. It is open-source, meaning it is completely free and requires no key.
: You can download a 14-day free trial . The only restriction is that the amplification pauses for 5 seconds every 5 minutes. License Types : Basic : ~$19.95 for 1 PC. Standard : ~$34.95 for 3 PCs. Professional : ~$49.95 for 5 PCs.
Sound Booster works by boosting the audio signal of your PC, allowing you to enjoy louder and clearer sound. The software achieves this by:
This is the gold standard for volume amplification. It can increase the volume of any Windows application (browsers, media players, games) by up to 5 times.
(for local video/audio)