Chapter 28 · SMPTE and MIDI Time Code 305 additional safety measure, it is a good idea to place the time code on a track as far from tracks containing show audio as possible, and you should never record TC with any type of automatic gain control enabled (crosstalk, of course, should not be a problem on a digital recorder.) Distribution To be safe, you should generally not "two-fer" LTC signals; instead, you should use some sort of audio distribution amp (DA). This approach solves potential impedance problems, isolates each output from others on the same link, and ensures that each device receives a clean signal. SMPTE T IME C ODE H ARDWARE Because of the extensive broadcast equipment market, and the wide acceptance of the SMPTE Time Code standard, there is a large variety of specialized time code generation, processing, distribution, and interfacing hardware. Time Code Generator A time code generator is used in many applications to create a master time code source. Some generators (see