I have bunch of MP3s that can use some sound amplification, because after I burn then to a CD, I have to put the volume control all the way up in my car's CD-player and on PC too while playing as MP3 ...

Personal sound amplification devices, or PSAPs, amplify sound waves for those who have normal hearing, or hearing thresholds of 20 dB or better in both ears. Unlike hearing aids, hearing amplifiers ...

Discover a creative way to amplify your smartphone's sound with this easy DIY project. Learn how to repurpose a stethoscope and plastic bottles to build a homemade phone speaker amplifier. Follow step ...

Sometimes when I'm playing a video on my laptop, even when I've got the gains all the way up, the volume is too low to enjoy comfortably. I know the volume can go higher, because other videos are much ...

SALT LAKE CITY – Utah and Texas researchers have learned how quiet sounds are magnified by bundles of tiny, hair-like tubes atop "hair cells" in the ear: when the tubes dance back and forth, they act ...