On Sat, 16 Jan 2010 10:02:49 -0500, Paul Christensen wrote:
>When using a manual key or paddle, it necessitates the use of a local >sidetone injected into the headphone audio. The same thing happens when a live talker (or singer) tries to use a mic on the field in a stadium (or sing the anthem) -- you hear own voice delayed by the acoustic travel time between the loudspeaker system and you, plus any DSP delay (typically 5-15msec), plus any delay used for synchronization of loudspeakers (typically 1-150 msec). The total delay can easily reach 120-150msec in a professional sports venue. VERY few people can sing or talk against that delay. Long ago, we learned to solve that problem just as you have outlined -- the singer/talker is fed an undelayed signal from his/her mic, plus any musical accompaniment, via either a local loudspeaker (floor monitor) or an earphone. 73, Jim Brown K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
