Signal rendered higher or lower than is expected. Example, Voice sounds too loud in the front seat of a threatre. Frequency distortion often results since frequency response of the ear is different to different levels of volume. Loss of fidelity when the sounds from a large concert hall, for example, are reproduced in a small listening room.
"For music lovers with rare LPs that didn't make it to CD, your service is invaluable. Your sound restoration makes the quality of the CD better than the vinyl itself, with all the hisses and pops eliminated, and reproducing the album cover is a great touch. You guys are my first and only choice for any transfers I'll need in the future."