On Sat, Jun 24, 2017 at 05:07:15PM +0000, Enda Bates wrote: > ... In that scenario, the TetraMic recording was definitely > noisier, purely due to the additional gain required.
That doesn't make much sense. Noise level (relative to signal) shouldn't increase with gain. If it does that means the amplifier has a problem. A well designed mic preamp will in fact have better EIN at high gain. > I've heard from quite a few people that given a high end > preamp with sufficient clean gain, that's not so much of > an issue. The Tetramic capsules have an acoustic noise level of 19 dB(A), and sensitivity is 7 mV/Pa. That means the electrical noise level is -116 dBm(A). If the EIN of the preamp is say 6 dB or more better then most of the noise comes from the mic. So with an EIN of -122 dBm(A) you should be safe, and I wouldn't call that 'high end'. The specs for the Motu 8m don't even mention EIN (which isn't a good sign). The 'dynamic range' figure of 112 dB can mean all sorts of things and is pretty useless. Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow) _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
