T-power, also known as Parallel, A-B, or Tonaderspeisung powering, was one of the original techniques used to power condenser microphones remotely from mixing consoles. It uses the microphone cable as the power conductor, eliminating the need for batteries or external power supplies. Phantom powering has effectively displaced T-powering as the standard microphone powering technique.
Storage volumes formatted by 7-Series recorders generate three folders in the volume's root. These folders are named FALSETAKES, TRASH, and SOUNDDEV. The FALSETAKES and TRASH folders can be viewed and emptied from the 7-Series recorder. The SOUNDDEV folder is hidden and cannot be accessed from the 7-Series recorder; it is only visible when the storage medium is mounted to a computer.