Hi All, To perhaps draw this to a close...
I searched the archives to find a reference to an inexpensive mic for flexRadios. Back on Nov 29, Carl Vangsness recommended the RS 33-3018 dynamic mic. How do others feel about it for casual SSB? vy 73's Rob AB7CF On Sun, 16 Mar 2008 09:05:04 -0700 Jim Lux <[EMAIL PROTECTED]> writes: > Quoting Robert Dennison <[EMAIL PROTECTED]>, on Sun 16 Mar 2008 08:41:07 > AM PDT: > > > 1. Given that the PowerSDR equalizer has a built in preamp and 10 > bands > > of equalization, why does it make a hoot what's used for a mic? > Just > > equalize and heat to taste... > > There's some mic specialists on this list who will no doubt cringe > at > my oversimplifications below, but, I'll leap in: > > There's more to mic differences than raw frequency response > (otherwise > recording studios wouldn't spend kilobucks on mics). Polar > sensitivity (i.e. the mic's "antenna pattern") can have a huge > effect > on the sound one gets, partly because it changes the ratio of direct > > and reflected sound. There's also mechanical effects (breath > noises, > pops, etc.). Not the least is sensitivity.. a mic that's only > sensitive from 500-1000Hz and is down 20 dB at 2kHz, isn't going to > be > equalizable, no matter how much gain you have. > > Indeed, a lot of this can be done with clever DSP. Of particular > interest these days are phased array schemes that use multiple small > > mics that adaptively track the source of the voice to create sort of > > the ultimate in noise cancelling mic, without needing a boom hanging > > off your head. (think astronauts or divers with their head inside a > > helmet, or, for a more conventional application, video > conferencing). > However, as we used to say when building motion control stuff, no > amount of closed loop control can make a wet noodle into a steel > bar. > > > jim, w6rmk > > _______________________________________________ > FlexRadio Systems Mailing List > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kb.flex-radio.com/ Homepage: > http://www.flex-radio.com/ > > > _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
