Yamaha MY16 Dugan MY16 Owners Manual - Page 10

Dugan-MY16 User Guide Theory of Operation The Dugan-MY16 uses the Dugan Speech System™, a patented and trademarked automatic mixing function that distributes the gain of one open microphone over the entire system. This results in a natural one-mic ambience with minimal noise or feedback. The Dugan Speech System does not limit, compress, or control levels. It performs just one critical function: cuing multiple live mics in situations with unpredictable dialogue. It is essential to distinguish this behavior from the distracting fluctuation of levels and uneven ambience produced by a conventional noise gate. When one person talks at a time, the Dugan Speech System rapidly fades that mic's gain up and the others down. When the speaker pauses, that mic fades down and the others up, so the gain of all mics sums to equal that of one mic at full gain. When the next person talks, the system fades that mic's gain up and the others down. The result sounds like passing one mic among several speakers. When several people talk at once, the gain is shared among active mics. All mics sound normal when used but there is no change in ambience, noise buildup, or feedback. While people are talking, use the Yamaha mixer's faders to set appropriate relative levels for each mic channel. You can leave the faders up when the mics are not used because the Dugan Speech System cues the mics up when needed. Figure 1-1 shows four snapshots of the Dugan Speech System in action with three mics. No one speaking Mic 2 speaking Mic 3 speaking Mics 2 and 3 speaking 70 60 Sound at mics (dB) 50 40 0 Resulting automix -10 gains (dB) -20 -30 1 2 3 4 Figure 1-1 Dugan Speech System 10