In the Final Frame
Provide clear sound in a very high ambient noise environment without leaking unwanted sound into adjacent areas.
Allen started using the music network after Jackson and her team finished the installation, so they were called back to connect it after the project was complete. “Originally, we started with the CD player, and they were really pleased with the sound,” says Jackson. “When we hooked up the one from the computer, the sound was OK, but it wasn't near as good as from the CD player.” Ironically, they were given an opportunity to improve the audio quality when the computer's sound card failed a few days later; and a new sound card had the same result. Jackson's solution was to add a standard high-to-low impedance line-matching transformer to the computer's audio signal. “It just really improved it 100 percent,” she says.